and economi- s of the ery simple and ec i
cal machines, in which pes-~ ist] tles on the ends of levers Istle, to 4 x aan are worked by a horizontal 0 Se:
Q shaft put in motion by t Egyp. 4
H Coops,
ale may a ELE E Ss(fig: 158.) 1¢ had 4 The chief thing to admire ted, and in the implements and
machines of India and or other
China is their simplicity, F Chi and the ease and little Ai expence with which they
Ciang a may be constructed.
i ee 988. The operations of Chinese agriculture are numerous. rigault gault,
and some of them curious. Two great objects to be pro-
the tiger, cured are water and manure. The former is raised from
d seen by
rivers or wells by the machines already mentioned, and dis« ome atthe tributed over the cultivated surfacein the usual manner, and erly pro the latter from every conceivable source. or Simia
imics the eculiar to
989. The object of their tilluge, Livingstone observes,“ appears to be, in the first instance, to expose the soil as extensively as possible; and this is best effected by throwing it up in large masses, in which state it is of China, allowed to remain till it is finally prepared for planting,_ When sufficient rain has fallen to own, ate
form and on painted dorn our sts, The Silkyworms ‘in China, and M. e Chinese sins as al ing, neat
has et ie. or Pyrat(| at= 4 hat it was DBA AM Ay Jt ily re es| 10 restric:
nee men in China ve several e. fishing allow the husbandman to flood his fields, they are laid under water, in which state the
; ploughed again, in the same manner as for fallow, and then a rake, or rather three feet deep and four feet wide, with a single row of teeth, is drawn, by the
y are commonly
tf a sort of harrow, about hey catcll
y cit same animal that draws ted white their plough, perpendicularly through the soil, to break the lumps, and to convert it into a kind of 00ze; oe and as the teeth of this rake or harrow are not set more than from two to three inches apart, it serves , Indue at the same time, very effectually to remove roots, and otherwise to clean the ground. For some pur- | they fall poses, the ground thus prepared is allowed to dry; it is then formed into beds or trenches; the beds are
made of a convenient size for watering and laying on manure. The intermediate trenches are com.
; monly about nine inches deep, and of the necessary breadth to give to the beds the required eleva.
h has one tion; but when the trenches are wanted for the cultivation of water plants, some part of the soil women, Is removed, so that a trench may be formed of the proper dimensions.;'
oat_ 990. For these operations they use a hoe, commonly ten inches deep, and‘five inches broad, made of
jrawn DY Iron, or of wood with an iron border, and for some purposes it is divided into four or five prongs. By
‘he carts constant practice the Chinese have acquired such dexterous use of this simple instrument, that they form
ese i their beds and trenches with astonishing neatness and regularity. With it they raise the ground which
has not been ploughed, from the beds and trenches, by only changing it from a vertical to a horizontal y have 4 direction, or employing its edge. It is also used for digging, planting, and in general for every purpose bury ag? which a Chinese husbandman has to accomplish.
ry 991. The colle
Seley ction of manure is an object of so much attention with the Chinese, that a prodigious yigation; number of old men, women, and children, incapable of much other labor, are constantly employed about ton; but the streets, public roads, and banks of canals and rivers, with baskets tied before the
m, and holding in M2
IF ih 164 HISTORY OF AGRICULTURE. Part I. their hands small wooden rakes to pick up the dung of animals, and offals of any kind, that may answer gums, a the purpose of manure: this is mixed sparingly with a portion of stiff loomy earth, and formed into“1 eat Sarely| cakes, dried afterwards in thesun. It sometimes becomes an object of commerce, and is sold to farmers, ili four’ who hever employ it in a compact state.‘Their first care is to construct very large cisterns for containing, gpbuigtt an Day a besides those cakes, and dung of every kind, all sorts of vegetable matter, as leaves, or roots, or stems of tes black, compa ; plants; mud from the canals, and offals of animals, even to the shavings collected by barbers. With all My is light} | these they mix as much animal water as can be collected, or of common water, as can dilute the whole; aluntonts 2 f | and, in this state, generally in the act of putrid fermentation, they apply it to the ploughed earth. In of sels 10 India: | various parts of a farm, and near the paths and roads, large earthen vessels are buried to the edge in the ie of fainting, } ground for the accommodation of the labourer or passenger who may have occasion to use them. In Joo nh ni small retiring-houses, built also upon the brink of the roads, and in the neighborhood of villages, reser- 1004. The nl a th voirs are constructed of compact materials, to prevent the absorption of whatever they receive, and straw nt fifteenth ay is carefully thrown over the surface from time to time, to prevent evaporation. Such a value is set upon cae f our\ the principal ingredient, called ta-feu, for manure, that the oldest and most helpless persons are not jetning OF OP” } deemed wholy useless to the family by which they are supported.‘The quantity of manure collected by all tp orould he ref means is still inadequate to the demand. Teale he imper | rinces of the IP 99%. Vegetable or wood ashes, according to Livingstone, are esteemed the very best| saber of manda manure by the Chinese. The weeds which were separated from the land by the harrow,(ge enperor’s hous with what they otherwise are able to collect, are carefully burnt, and the ashes yal the laborers 0 spread.-The part of the field where this has been done is easily perceived by the most| ged bythe head of
anf tues the pro He pronounces W ith
ey fetorokes the bless
careless observer. Indeed the vigor of the productions of those parts of their land where the ashes have been applied is evident, as long as the crop continues on the ground. The ashes of burnt vegetables are also mixed with a great variety of other matters in forming the compositions which are spread on the fields, or applied to indi- Tha inte capa vidual plants. fren as the fountal 993. The plaster of old kitchens is much esteemed as a manure; so that a farmer will replaster a cook- inyyoht to the em house for the old plaster, that he may employ it to fertilize his fields. ae le, The 994. Of night-soil(ta-feu), the Chinese have a high notion: and its collection and formation into cakes, anceat style by means of a little clay, clay and lime, or similar substances, gives employment to a great number of indi-| mh with the mi viduals.‘They transport these cakes to a great distance.‘This manure in its recent state is applied to the Tr atone . a7 el A A Sy PE* Sag ely eee uth: then gives th
roots of cauliflowers, cabbages, and similar plants, with the greatest advantage. erat
ae s; 5:: S ee ene
995. The dung and urine of all animats is collected with great care; they are used both mixed and guecession, display separately.‘Che mixture is less valuable than the dung, and this for general purposes is the better, the foion of money, at UY~ b I
older it is. Horns and bones reduced to powder, the cakes left after expressing several oils, such as
of the ground-nut, hemp-seed, and the like, rank also as manures. Small crabs, the feathers of fowls arecute the rest Ot
and ducks, soot, the sweepings of streets, and the stagnant contents of common sewers, are often he necessary work
thought sufficiently valuable to be taken to a great distance, especially when water carriage can be ii
obtained.: ireeremony, and 996. Lime is employed chiefly for the purpose of destroying insects; but the Chinese are also aware of ame day by the vi
its fertilizing properties.; 997. The Chinese often manure the plant rather than the soil. The nature of the climate in the of: southern part of the empire seems to justify fully this very laborious but economical practice. Rain com- Sussect. 9,] monly falls in such quantities and force as to wash away all the soluble part of the soil, and the manure Bae hin, on which its fertility is supposed to depend; and this often appears to be so effectually done, that nothing 1005. Chinese! meets the eye but sand and small stones. It is therefore proper that the Chinese husbandman should mature, and rema | reserve the necessary nourishment of the plant to be applied at the proper time. For this purpose reser- tins of Thibet i } voirs of the requisite dimensions are constructed at the corner of every field, or other convenient places. il, le in 998. With the seed or young plant its proper manure is invariably applied. It is then Ba now 6¢ carefully watered in dry weather night and morning, very often with the black stagnant e) of a lack contents of the common sewer; as the plants advance in growth the manure is changed lowever, I sid to ::::=:> NG. Miho
in some instances more than once, till their advance towards maturity makes any further 1006, Mel Or application unnecessary. divisions, Thiet an 999. The public retiring-houses are described by Dr. Abel, as rather constructed for wards the south, for
| exposure than concealment, being merely open sheds with a railway, over the reservoir. be Alps of Italy, 1000. The mixture of soils is said to be a common practice as a substitute for manure: nen those of “€ they are constantly changing earth from one piece of ground to another; mixing sand 01, With respec | with that which appears to be too adhesive, and loam where the soil appears to be too Hd presents to i loose,&c.”’| tered with eternal 1001. The terrace cultivation is mentioned by Du Halde and others, as carried to great{ Als every favorah perfection in China; but the observations of subsequent travellers seem to render this al alpted to cultiy } doubtful. Lord Amherst’s embassy passed through a hilly and mountainous country for thot land betireen i many weeks together: but Dr. Abel, who looked eagerly for examples of that system of Santwashed by som cultivation, saw none that answered to the description given by authors. Du Halde’s} alt orchards and } description, he says, may apply to some particular cases; but the instances which he ob- Metab the most served lead him to conclude that terrace cultivation is in a great measure confined to their KT. on thee | ravines, undulations, and gentlest declivities. tr iad ape | 1002. Rows, or drills, are almost always adopted in planting or sowing; and for this pur- suit Tle vege | pose the lands are laid flat, and not raised into ridges with intervening furrows. They Ry enatth are said to be particular in having the direction of their rows from north to south, which 1 The agricul j other circumstances being suitable is certainly a desirable practice. Before sowing, seeds| oa eat, pease are generally kept in liquid manure till they germinate. Barrow frequently saw in the TH, and cucu province of Keang-see a woman drawing a light plough with a single handle(fig. 156 a),‘eed ae such
through ground previously prepared; while a man held the plough with one hand, and tN ae fore
sts(
with the other cast the seed into the drills.|“Reattably lara 1003. Forests of immense extent exist on the mountains of the western districts of BSTOnS the : 5. i ay bY
China, and abound in almost every species of tree known in Europe, and many others© Reutty Contain )| i HIS,
unknown. Besides timber and fuel, these forests supply many valuable products as aay
SANE ay
A
Panny,
MAY ansyer lormed intg ‘0 farmers COUtainine ) OF stems af 8. With all earth, Ih edge in the e them, Tp lages, Teser. G, ad stray © 18 set Upon SONS are not llected by all
Very bes he harrow, the ashes Y the most their land le on the ty of other ed to indi
Lastey a cook.
Mm into cakes, ber i. lied to the
1 mixed and 1e better, the oils, such ¢ hers of fowls Ss, are oiten nage can be
also aware of
the
d the manure that notbing dman should purpe SO TPSET. jient places,
Tt is thea ck stamnant is changet any further
ructed fo eseryolt.
r manure: ixing sand 5 to be to”
ed to great render ths ountry 10!
systern 0! UL} Jalde's ich he ob- ed to theit
» this pul 1c, They
ith, which
ng, seeds yw in the v, 1564)
) and, ant
stricts 0! ny oes ducts®
Boox I. AGRICULTURE IN ASIA. 165
barks, gums, oils, and resins, used in the arts. Rosewood, ebony, sandalwood, ironwood, and a great variety of others are sent to Europe for cabinet work. The Chinese aloe has the height and figure of an olive tree. It contains within the bark three sorts of wood; the first, black, compact, and heavy, is called eagle-wood; it is scarce; the second, called calambooc, is light like rotten wood; the third, near the centre, is called calamba wood, and sells in India for its weight in gold; its smell is exquisite; it isan excellent cordial in cases of fainting, or of palsy.
1004. The national agricultural féte of the Chinese deserves to be noticed. Every year on the fifteenth day of the first moon, which generally corresponds to some day in the beginning of our March, the emperor in person goes through the ceremony of opening the ground; he repairs in great state to the field appointed for this ceremony. The princes of the imperial family, the presidents of the five great tribunals, and an immense number of mandarins attend him. Two sides of the field are lined with the officers of the emperor’s house, the third is occupied by different mandarins; the fourth is reserved for all the laborers of the province, who repair thither to see their art honored, and prac- tised by the head of the empire. The emperor enters the field alone, prostrates himself, and touches the ground nine times with his head in adoration of Tien, the God of heaven. He pronounces with a loud voice a prayer prepared by the court of ceremonies, in which be invokes the blessing of the Great Being on his labor, and on that of his whole people. Then, in the capacity of chief priest of the empire, he sacrifices an ox, in homage to heaven as the fountain of all good. While the victim is offered on the altar, a plough is brought to the emperor, to which is yoked a pair of oxen, ornamented in a most mag- nificent style. The prince lays aside his imperial robes, lays hold of the handle of the plough with the right hand, and opens several furrows in the direction of north and south; then gives the plough into the hands of the chief mandarins, who, laboring in succession, display their comparative dexterity. The ceremony concludes with a distri- bution of money, and pieces of cloth as presents, among the laborers; the ablest of whom execute the rest of the work in presence of the emperor. After the field has received all the necessary work and manure, the emperor returns to commence the sowing with simi- lar ceremony, and in presence of the laborers. These ceremonies are performed on the same day by the viceroys of all the provinces.
Suzsecr. 9. Present State of Agriculture in Chinese Tatary, Thibet, and Bootan.
1005. Chinese Tatary is an extensive region, diversified with all the grand features of nature, and remarkable for its vast elevated plain, supported like a table, by the moun- tains of‘Thibet in the south, and Allusian chain in the north. This prodigious plain is little known; its climate is supposed to be colder than that of France; its deserts to consist chiefly of a black sand; and its agriculture to be very limited and imperfect. Wheat, however, is said to be grown among the southern Mandshurs.
1006. Thibet or Tibet is an immense tract of country little known. It consists of two divisions, Thibet and Bootan. The climate of Thibet is extremely cold and bleak to- wards the south, for though on the confines of the torrid zone it vies in this respect with the Alps of Italy. That of Bootan is more temperate; and the seasons of both divisions are severe to those of Bengal.
1007. With respect to surface, Bootan and Thibet exhibit a very remarkable contrast. Bootan presents to the view nothing but the most misshapen irregularities; mountains covered with eternal verdure, and rich with abundant forests of large and lofty trees. Almost every favorable aspect of them, coated with the smallest quantity of soil, is cleared and adapted to cultivation, by being shelved into horizontal beds: not a slope or narrow slip of land between the ridges lies unimproved. There is scarcely a mountain whose base is not washed by some rapid torrent, and many of the loftiest bear populous villages, amidst orchards and other plantations, on their summits and on their sides. It combines in its extent the most extravagant traits of rude nature and laborious art.
1008. Thébet, on the other hand, strikes a traveller, at first sight, as one of the least favored countries under heaven, and appears to be ina great measure incapable of culture. It exhibits only low rocky hills, without any visible vegetation, or extensive arid plains, both of the most stern and stubborn aspect, pro- mising full as little as they produce.
1009. The agriculture of Thibet has many obstacles to contend with. Its common pro- ducts are wheat, pease, and barley. Rice grows only in the southern parts.‘Turnips, pumpkins, and cucumbers are abundant. The greater part of the plants which travellers have noticed are such as are met with also in Europe and in Bengal. At the foot of the mountains are forests of bamboos, bananas, aspens, birches, cypresses, and yew-trees. The ash is remarkably large and beautiful, but the firs small and stunted. On the snow-clad
mountains grows the rheum undulatum, which the natives use for medicinal purposes, The country contains, both in a wild and cultivated state, peaches and apricots, apples, pears, oranges, and pomegranates.‘The cacalia saracenica serves for the manufacture of chong, a spirituous and slightly acid liquor. M 3
2
== re
“£5
166 HISTORY OF AGRICULTURE. Pred
1010. Thibet abounds in animals, partly in herds and flocks; but chiefly in a wild state. The tame horses are small, but full of spirit and restive. The cattle are only of middling height. There are numerous flocks of sheep, generally of a small breed; their head and legs are black, their wool fine and soft, and their mutton excellent; it is eaten in a raw state, after having been dried in the cold air, and seasoned with garlic and spices. The goats are numerous, and celebrated for their fine hair, which is used in the manu- facture of shawls; this grows under the coarser hair. The yak, or grunting ox, fur- nished with long and thick hair, and a. tail singular for its silky lustre and undulating form, furnishes an article of luxury common in ail the countries of the East. The musk ox, the ounce, a species of tiger, the wild horse, and the lion, are among the animals of the country.
1011. That elegant specimens of civil archi- 159 tecture, both in the construction of mansions tH
(fig. 159.), or palaces, and in bridges and other public works, should be found in such a country is rather singular. In Turner’s jour- ney through this mountainous region, he found bridges of various descriptions generally of timber. Over broad streams, a triple or quadruple row of timbers project one over the other, their ends inserted into the rock. Piers
Ni, seal Ai i me
i lest
THEI E
A
JEL Sill
the exreme rapidity of the rivers. The widest ....- o SES river has an iron bridge, consisting of a num-—=c>— fea z= ber of iron chains which support a matted platform( fig. 160.), and two chains are stretched \X. AGN 160 AW
CM NX
VAY
WW N
A ALM~ =
a
oh . WEE A
Horses are permitted to go over this bridge, one ata time. There is another bridge of a more simple construction, formed of two parallel chains, round which creepers are loosely twisted, sinking very much in the middle, where suitable planks are placed for a path, Another mode of passing rivers is by two ropes, of rattan, or stout osier, stretched from one mountain to another, and encircled by a hoop of the same. The passenger places himself between them, sitting in the hoop, and seizing a rope in each hand, slides him- self along with facility and speed over an abyss tremendous to behold. Chain and wire bridges, constructed like those of Thibet, are now becoming common in Britain; and it is singular, that one is described in Iiutchinson’s Durham(Newcast. 1785.) as having been erected over the Tees.
Suzsecr. 10. Present State of Agriculture in the Asiatic Islands, mcluding also those of Australasia and Polynesia.
1012. The islands of Asia and Australasia form a great and important part of our globe; and seem well adapted by nature for the support of civilized man, though at present they are mostly peopled by savages. Some European colonies have been made, especially in New Holland and Van Diemans Land, which will probably after a long and indefinite period, civilize the whole. The immense population, agriculture, commerce, power, and refinement, which may then exist in these scarcely known regions, are too yast and various
=
But I
jy otepatod Yili the Cele Yon Diemans La ie Marquess 101s, Sumatra
{ Wh
Fencal, a surface fs and a sol The most impor fon and exports tee, and the pep resin benzo, 28 walkingstcks, tur 00d, banyal, alo Jord. The peppt rsa the jis Sumatra, and th prt of the world, Als. of Sumatra Gumatrans for a mut ato regular taded distance of are usually a thou: sett business 1s mich serve a8 J and are cuttings 0 isof quick grow bas been some 1 promising perpen growth, and th shoot, after it b height, is deeme iseut of, Tw vines twist for they acquire eig ground, and b that the upper plants, and the duced in long 5 first green, tur gathered in prop the berries Woy] Pluck the bunches Or upon the grown to their degree of 108, White pepper tis purpose the bern N} after which th ihe berries ate fre thine,” applied be 42) ands sold as an is The betel Saslender.stemm leaves, These ie teal called the a litle chunar &) and is chew “egthen the ston ee The pias The areca
a Mae
“ent trunk, a :(0 prepare by N18, Thy ea Thre so “Use tree, whic I branches, IN hi The Ave gf tl dhinutg "Ed animate : ain, “es OC Wild f ‘i Wid fy) ~O¥M in Brit
"
als a
‘ARr|,
a state Nddline ir head ten Ina : Spices, e Manu. OX, fur. dulating he musk
mals of
stretched
; x
> 2
\== i
Ae
~
senger, ge of 3 loosely a path, id from - places s him id wire and it having
hose of
slobe; t they ly in efinite r, and various
Boox I. AGRICULTURE IN ASIA. 167
for contemplation, We shall notice these islands in the order of Sumatra, Borneo, the Manillas, the Celebezian isles, New Holland, New Guinea, New Britain, New Zealand, Van Diemans Land, the Pelew isles, the Landrone isles, Caroline isles, Sandwich isles, the Marquesas, the Society isles, including Otaheite, and the Friendly isles.
1013. Swmatra is an island of great extent, with a climate more temperate than that of Bengal, a surface of mountains and plains, one third of which is covered with impervious forests, and a soil consisting of a stratum of red clay, covered with a layer of black mould. The most important agricultural product is rice, which is grown both for home consump- tion and export. Next may be mentioned the cocoa-nut, the areca-palm, or betel nut tree, and the pepper. Cotton and coffee are also cultivated; and the native trees afford the resin benzoin, cassia or wild cinnamon, rattans or small canes(drundo rotang), canes for walkingsticks, turpentine, and gums; besides ebony, pine, sandal, teak, mancbineel, iron wood, banyan, aloe, and other woods.
1014. The pepper plant(Piper nigrum, fig. 161 a.) isa slender climbing shrub, which also roots at the joints. It is extensively cultivated at Sumatra, and the berries exported to every part of the world. According to Marsden (Hist. of Sumatra), the ground chosen by the Sumatrans for a pepper-garden, is marked out into regular squares of six feet, the in- tended distance of the plants, of which there are usually a thousand in each garden.‘The next business is to plant the chinkareens, which serve as props to the pepper-vines, and are cuttings of a tree of that name, which is of quick growth. When the chinkareen has been some months planted, the most promising perpendicular shoot is reserved for growth, and the others lopped off: this shoot, after it has acquired two fathoms in height, is deemed sufficiently high, and its top SN\. is cut off. Two pepper-vines are usually planted to one chinkareen, round which the vines twist for support; and after being suffered to grow three years(by which time they acquire eight or twelve feet in height), they are cut off about three feet from the ground, and being loosened from the prop, are bent into the earth in such a manner that the upper end is returned to the root. This operation gives fresh vigor to the plants, and they bear fruit plentifully the ensuing season. The fruit, which is pro- duced in long spikes, is four or five months in coming to maturity: the berries are at first green, turn to a bright red when ripe and in perfection, and soon fall off if not gathered in proper time. As the whole cluster does not ripen at the same time, part of the berries would be lost in waiting for the latter ones; the Sumatrans, therefore, pluck the bunches as soon as any of the berries ripen, and spread them to dry upon mats, or upon the ground; by drying they become black, and more or less shrivelled, according to their degree of maturity.‘These are imported here under the name of black pepper.
1015. White pepper is the ripe and perfect berries of the same species stripped of their outer coats. For this purpose the berries are steeped for about a fortnight in water, till by swelling their outer coverings burst; after which they are easily separated, and the pepper is carefully dried by exposure to the sun; or the berries are freed from their outer coats by means of a preparation of lime and mustard-oil, called “ chinam,”’ applied before it is dried. Pepper, which has fallen to the ground over-ripe, loses its outer coat, and is sold as an inferior sort of white pepper.
1016. The betel leaf(Piper betle, fig. 161 b.) is also cultivated to a considerable extent. It is a slender-stemmed climbing or trailing plant, like the black pepper, with smooth-pointed leaves. These leaves serve to enclose a few slices of the nut of the areca palm(erro- neously called the betel nut). Theareca being wrapped up in the leaf, the whole is covered with a little chunam or shell-lime to retain the flavor. The preparation has the name of betel, and is chewed by the better sort of southern Asiatics to sweeten the breath and strengthen the stomach; and by the lower classes, as ours do tobacco, to keep off the calls of hunger. The consumption is very extensive.
1017. The areca palm(areca catechu) grows to the height of forty or fifty feet with a straight trunk, and is cultivated in the margins of fields for its nut or fruit, which is sold to prepare betel.
1018. Three sorts of cotton are cultivated, including the silk cotton(Bombar ceiba), a handsome tree, which has been compared by some to a dumb waiter, from the regularity of its branches.
1019. The live stock of Sumatra are horses, cows, buffaloes, sheep, and swine. They are all diminutive. The horse is chiefly used for the saddle, and the buffalo for labor.
The wild animals are numerous, and include the civet cat, monkey, argus pheasant, the jungle or wild fowl, and the small breed found also at Bantom on the west of Java, and well known in Britain by that name.
XS
M4
168 HISTORY OF AGRICULTURE. Parr I.
1020. Borneo is the largest island in the world next to New Holland. It is low and marshy towards the shore, and in this respect and in its climate, is similar to Java, The soil is naturally fertile; but agriculture is neglected, the inhabitants occupying themselves in searching for gold, which they exchange with the Japanese for the neces- saries of life.
1021. The ava, or intoxicating pepper(Piper methystlcum), is cultivated here. It is a shrub with a forked stem and oblong leaves, bearing a spike of berries, and having thick roots. The root of this plant, bruised or chewed in the mouth, and mixed with the saliva, yields that nauseous, hot, intoxicating juice, which is so acceptable to the natives of the South Sea islands, and which is spoken of with so much just detestation by voyagers. A similar drink is made in Peru from the meal of the maize.‘They pour the liquor of the cocoa-nut, or a little water, on the bruised or masticated matter, and then a small quantity produces intoxication and sleep. After the use of it for some time, it produces inflam- mation, leprous ulcers, and consumption, It is cultivated in all the South Sea islands, excepting the New Hebrides and New Caledonia.(Sprx’s Travels.)
1022, The Manillas, or Philippine Islands, are a numerous group, generally fruitful in rice, cotton, the sugar-cane, and cocoa. The bread-fruit also begins to be cultivated here,
1023, The Celebexian Islands are little known. They are said to abound in poisonous plants; and the inhabitants cultivate great quantities of rice.
1024. The Moluccas, or Spice Islands, are small, but fertile in agricultural products, In some the bread-fruit is cultivated, also the sago palm, with cloves and nutmegs. The nutmeg-tree(Myristica moschata) grows to the size of a pear-tree, with laurcl-like leaves; it bears fruit from the age of ten to one hundred years, The fruit is about the size of an apricot, and when ripe nearly of a similar color. It opens and discovers the mace of a deep red, growing over and in part covering the thin shell of the nutmeg, which is black. The tree yields three crops annually; the first in April, which is the best; the second in August; and the third in December; yet the fruit requires nine months to ripen it. When it is gathered, the outer coriaceous covering is first stripped off, and then the inner carefully separated and dried in the sun. The nutmegs in the shell are exposed to heat and smoke for three months, then broken, and the kernels thrown into a strong mixture of lime and water, which is supposed to be necessary for their preservation, after which they are cleaned and packed up; and with the same in- tention the mace is sprinkled with salt water.
1025. New Holland, or what may be called the continent of Australasia, has a fine and salubrious climate; and being on the southern side of the equator, the seasons are the reverse of those in Europe. The surface is in general low and level, and little occu-
pied by mountains. The country is naturally rather barren than fertile; the soil is sandy, and many of the lawns or savannahs are rocky and barren. Woods occur fre- quently, but there appear to be few or none of those extensive forests which coyer such immense tracts in most new countries, The inhabitants being savages of the lowest grade, have no kind of agriculture or cultivation. That art, however, is making rapid progress round the British colony of Botany Bay.
1026. Papua, or New Guinea, partakes of the opulence of the Moluccas, and their singular varieties of plants and animals. The coasts are lofty, and abound with cocoa-trees; in the interior, mountain rises above mountain, richly clothed with woods of great variety of species, and abounding in— wild swine(fig. 162.) Birds of paradise and elegant= parrots abound: they are shot with blunt arrows, or<___ caught with bird-lime or nooses.‘The bowels ane ser breast being extracted, they are dried with smoke of iron to such navigators as touch at the island.
1027. New Britain, New Ireland, the Solomon Isles, New Caledonia,and the New Hebrides, are litttle known.
and sulphur, and sold for nails or bits
ean ae 163 ay Deer fay|
hey are mountainous and woody, with fertile vales and ah N/a one beautiful streams. The nutmeg, cocoa, yam, ginger,-<*HK), th i/ Yr'G As lantaine>» ¢ 1ar-canes. and en i UL, x pepper, plantains( fig. 163.) sugar-canes, and othe: Lp
fruits and spice-trees abound.
1028. New Zealand has scarcely any agriculture; but plantations of yam, cocoa, and sweet potatoe. There is only one shrub or tree in this country which pro- duces fruit, and that is a kind of a berry almost taste- less; but they have a plant(Phormiwm te naz), which answers all the uses of hemp and flax. There are two kinds of this plant; the leaves of one of which are yel- low, and the other deep red; and both of them re-
semble the leaves of flags; of these leaves they make
pos
igs and cong igs they Ike i Their cou fner, Dy nother aad low grou eis to be its pr pate, and{0U Ireland.| 1099, Van Dh enous apiclt i tat of Bgl for culture, ud rill colin country to elnigr a rilein Australi 1090, The P anf encircled by islands have any| but they are rich ice trees, tnclu deen, fi. 164, antabound with olher birds, Th aatends to yams ¢ 1081, The Le ketion of rocky agriculture, Tl are exceptions, and fruits, the’ without agricul 1032, The( bited by savage 1033. The j and mountaino fit for cultivati but cultivate r They hare, ho Pepper(1021,) liquor from th General purpose getting care, an 1084, Th Sn of the South Se perfection, Sue teen anda qua IRS, and rats, 4 thers that haye ‘td inthe time i) 1088, The isla He COuntry. te ntry, ¢
xe $e, that rap ay be seen at th 5 tborder ¢
ny \ TIC
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Boox I. AGRICULTURE IN ASIA. 169
lines and cordage, and much stronger than any thing of the kind in Europe. These leaves they likewlse split into breadths, and tying the slips together, form their fishing- nets. Their common apparel, by a simple process, Is made from these leaves; and their finer, by another preparation, is made from the fibres. This plant is found both on high and low ground, in dry mould and deep bogs;_ but as it grows largest in the latter, that seems to be its proper soil. It has lately been planted, and found to prosper, in the south of Ireland.
1029. Van Diemans Land is without indi- genous agriculture; but its climate being similar SN to that of England, its surface and soil favorable—~ for culture, and there being few natives, it is rapidly colonizing with British farmers. Asa country to emigrate to, itappears the most desi- rablein Australasia, and superior to any in Asia.
1030. The Pellew Isles are covered with wood, and encircled by a coral reef. None of these islands have any sort of grain or quadruped; but they are rich in the most valuable fruit and spice trees, including the cabbage-tree(Areca oleracea, fig. 164.), cocoa, plantain, and orange; and abound with wild cocks and hens, and many other birds. The culture of the natives only extends to yams and cocoa-nuts.
1031. The Ladrones are a numerous col- far lection of rocky fragments, little adapted to iat agriculture.‘The isles of Guam and‘Tinian ri are exceptions.‘The latter abounds in cattle ia and fruits, the bread-fruit, and orange; but is id
without agriculture. 1032. The Carolines are a large group, inha-
bited by savage, and without agriculture. m5
1033. The Marquesas are in general rocky ia and mountainous, and but very few spots are Z fit for cultivation. The inhabitants are savages, ea
but cultivate rudely the yam in some places. They have, however, the ava, or intoxicating pepper(1021.); and procure also a strong liquor from the root of ginger for the same general purpose of accumulating enjoyment, for- getting care, and sinking into profound sleep.=
1034. The Sandwich Isles resemble those of the West Indies in climate, and the rest of the South Sea islands in vegetable productions. The bread-fruit tree attains great perfection. Sugar-canes grow to an unusual size, one being brought to Captain Cook eleven anda quarter inches in circumference, and having fourteen feet eatable. Dogs, hogs, and rats, are the only native quadrupeds of these islands, in common with all others that have been discovered in the South Sea.‘The king is a civilized being, and in the time of Geo. IT., and again in 1824, visited England.
1035. The island of Otaheite is surrounded by a reef of coral rocks. The surface of the country, except that part of it which borders upon the sea, is very uneven; it rises in ridges, that run up into the middle of the island, and there form mountains, which may be seen at the distance of sixty miles: between the foot of these ridges and the sea is a border of low land, surrounding the whole island, except in a few places where the ridges rise directly from the sea: the border of low land is in different parts of different breadths, but no where more than a mile and a half.
1036. The soil of Otaheite, except on the very tops of the ridges, is extremely rich and fertile, watered by a great number of rivulets of excellent water, and covered with fruit- trees of various kinds. The low land that lies between the foot of the ridges and the sea, and some of the valleys, are the only parts of the island that are inhabited, and here it is populous: the houses do not form villages or towns, but are ranged along the whole border, at the distance of about fifty yards from each other, with little plantations of plantains, the tree which furnishes them with cloth.
1037. The produce of Otaheite is the bread-fruit,( Artocorpus integrifolia, fig. 165.) cocoa- nuts, bananas of thirteen sorts, plantains, a fruit not unlike an apple, which, when mpe, 1s very pleasant; sweet potatoes, yams, cocoas(4rum colocassia, and Caladiunr esculentum, both propagated by the leaves); a fruit known here by the name of jambu, and reckoned most delicious; sugar-cane, which the inhabitants eat raw; a root of
170 HISTORY OF AGRICULTURE. Parr I,
the saloop kind, which the inhabitants call pea; a Ree calles ethee, of which the root only is eaten; a fruit that grows ina.« pod, like that of a large kidney bean, which,< when it is roasted, eats very much like a
chestnut, by the natives called whee; a tree called wharra, called in the East Indies pandanes, which produces fruit something like the pine apple. a shrub called nono; the morinda, which also produces fruit; a species of fern, of which the root is eaten, and sometimes the leaves: and a plant called theve, of which the root also is eaten: but the fruits of the nono, the fern, and the theve, are eaten only by the inferior people, and in times of scarcity: all these, which serve the inhabitants for food, the earth produces spontaneously, or with little culture. They had no European fruit, gardenstuff, pulse, or legumes, or grain of any kind, till some seeds of melons and? other vegetables were given them by Captain Cook.
1038. Of tame animals, the Otaheitans have only hogs, dogs, and poultry; neither is there a=A animal in the island, except ducks, pigeons, parroquets, with a few other birds, and rats, there being no other quadruped, nor any serpent. But the sea supplies them with great variety of most excellent fish, to eat which is their chief luxury, and to
catch it their principal labor.
1039. The Friendly Islands are in most respects similar to Otaheite. Tongataboo ap- pears to be a ilat country, with a fine climate, and universally cultivated."The whole of this island is said to consist of enclosures, with reed fences about six feet high, inter- sected with innumerable roads. The articles cultivated are bread fruit, plantains, cocoa-nuts, and yams, In the other islands, plantains and yams engage most of their attention; the cocoa-nut and bread fruit-trees are dispersed about in lee order than the former, and seem to give them no trouble. Their implements of culture consist of pointed sticks of different lengths and degrees of strength.
Sect. II. Present State of Agriculture in Africa.
1040.. The continent of Africa in point of agricultural, as of political and ethical es- timation, is the meanest of the great divisions of the earth; though in one corner of it (Egypt) agriculture is supposed to have originated. The climate is every where hot, and intensely so in the northern parts. The central parts, as far as known, consist of ridges of mountains and immense deserts of red sand. There are very few rivers, inland lakes, or seas, and indeed fully one half of the whole of this continent may be considered as either desert, or unknown. Some of the African islands are fertile and important, especially Madagascar, Bourbon, Mauritias,&c. We shall take tne countries of Africa in the order of Abyssinia, Egypt, Mahometan states of the oe western coast, Cape of Good Hope, eastern coast, Madagascar, and other isles,
Sussecr. 1. Present State of Agriculture in Abyssinia.
1041. The climate of Abyssinia, though exceedingly various in different parts, is in general temperate and healthy. The surface of the country is generally rugged and mountainous; it abounds with forests and morasses; and it is also interspersed with many fertile valleys and plains, that are adapted both to pasture and tillage. The rivers are numerous and large, and contribute much to general fertility. The soil is not naturally good, being in general thin and sandy; but it is rendered fertile and productive by irrigation and the periodical rains.
1042. The agricultural products are wheat, barley, millet, and other grains. They cultivate the vine, peach, pomegranate, sugar-cane, almonds, lemons/ ( fig. 166.), citrons, and oranges; and they have many roots and herbs which grow spontaneously, and their soil, if properly managed, would produce many more. However, they make little wine, but content themselves with the liquor which they draw from the sugar-cane, and their honey, which is excellent and abet They have the coffee-tree, and a plant called ensete, which produces an eatable nou-
_—_—_—_—_—————_____
Jhok I,
shin fruit both for dome eyats lke tle ioaly the roth 1043. The li preed; US, se aol gt gal wel the wild am imal lps the bufal al, the elepha the leopard, the the o which gelds of millet, ihe recor, oF the jeroa, the
1 a
hare, aS Wet
pnclean, and n0 10 sparrows, 1 vaterfowl hor g00se, or SO0se nonin every pi country are ver| vm their bees 14 The a for want of app years aud whe their trees and the west side« side, and last the rainy seas abundanee, b this defect b the plenty, a famine, eithe or by the mo
very uncommc while the cool 1046, The uniform, Far bounded on eit variously desert rendered fertile Very tenacious a éDpears to preva ‘lt, The fer ht this 18 applic Mies there are ¢ bertin of Hetcal, is far f Thich i an Loy Ut, except a fe tb OW the su tout, as ting to Brows
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Boox I. AGRICULTURE IN AFRICA. 171
rishing fruit. The country also produces many other plants and fruits, that are adapted both for domestic and medicinal uses. Here is plenty of cotton, which grows on shrubs, like the Indian. Their forests abound with trees of various descriptions, parti- cularly the rock, baobab, cedar, sycamore,&c.
1043. The live stock of Abyssinia includes horses, some of which are of a very fine breed; mules, asses, camels, dromedaries, oxen of different kinds,(fig. 167.) cows, sheep, and goats; and these constitute the principal wealth of the inhabitants. Amongst the wild animals, we may reckon the ante- lope, the buffalo, the wild boar, the jack- al, the elephant, the rhinoceros, the lion, the leopard, the hyena, the lynx, ape, and baboon, which are very destructive to the fields of millet, as well as the common rat the zecora, or wild mule, and the wild ass the jerboa, the fennic, ashkoko, hare,&c. The hare, as well as the wild boar, is deemed unclean, and not used as food. Bruce saw no sparrows, magpies, nor bats; nor many water-fowl, nor any geese, except the golden goose, or goose of the Nile, which is com-————— mon in every part of Africa; but there are snipes in the marshes. The locusts of this country are very destructive; they have also a species of ants, that are injurious; but from their bees they derive a rich supply.
1044. The agriculture of Abyssinia is of far less use to the inhabitants than it might be for want of application and exertion. There are two, and often three harvests in the year; and where they have a supply of water, they may sow in all seasons; many of their trees and plants retain their verdure, and yield fruit or flowers throughout the year; the west side of a tree blossoms first, and bears fruit, then the south side, next the north side, and last of all the east side goes through the same process towards the beginning of the rainy seasons. Their pastures are covered with flocks and herds. They have grass in abundance, but they neglect to make bay of it; and therefore they are obliged to supply this defect by feeding their cattle with barley, or some other grain. Notwithstanding the plenty, and frequent return of their crops, they are sometimes reduced almost to famine, either by the devastations of the locusts or grasshoppers which intest the country, or by the more destructive ravages of their own armies, and those of their enemies.
? >
Sunsect. 2. Present State of Agriculture in Egypt.
1045. The climate of Egypt has a peculiar character from the circumstance of rain being very uncommon.‘The heat is also extreme, particularly from March to November; while the cool season, or a kind of spring, extends through the other months.
1046. The surface of the country is varied in some regions, but is otherwise flat and uniform. Far the greater part presents a narrow fertile vale, pervaded by the Nile, and bounded on either side by barren rocks and mountains.‘The soil) of Egypt has been variously described by different travellers, some representing it as barren sand, only rendered fertile by watering, and others as“¢a pure black mould, free from stones, of a very tenacious and unctuous nature, and so rich as to require no manure.”’ The latter appears to prevail only in the Delta.
1047. The fertility of Egypt has been generally ascribed to the inundations of the Nile, but this is applicable in a strict sense only to parts of the Delta; whereas, in other dis- tricts there are canals, and the adjacent lands are generally watered by machines. Gray’s description of Egypt, as immersed under the influx of the Nile, though exquisitely poetical, is far from being just. In Upper Egypt the river is confined by high banks, which prevent any inundation into the adjacent country. This is also the case in Lower Egypt, except at the extremities of the Delta, where the Nile is never more than a few feet below the surface of the ground, and where of course inundation takes place. But the country, as we may imagine, is without habitations. The fertility of Egypt, ac- cording to Browne, an intelligent traveller, arises from human art. The lands near the river are watered by machines; and if they extend to any width, canals have been cut. The soil in general is so rich as to require no manure. It is a pure black mould, free from stones, and of a very tenacious unctuous nature. When left uncultivated, fissures have been observed, arising from extreme heat, of such depth that a spear of six feet could not reach the bottom.
1048. Phe limits of cultivated Egypt are encroached upon annually, and barren sand is accumulating from ail parts. In 1517, the era of the Turkish conquest, lake Mareotis was at no distance from the walls of Alexandria, and the canal which conveyed the waters into the city was still navigable. At this day the lake has disappeared, and the lands
172 HISTORY OF AGRICULTURE. Parr I,
watered by it, which, according to historians, produced abundance of corn, wine, and various fruits, are changed into deserts, in which are found neither shrub, nor plant, nor verdure. The canal itself, the work of Alexander, necessary to the subsistence of the inhabitants of the city, which he built, is nearly choked up, and preserves the waters only when the inundation is at its greatest height, and for a short time. About halfa century ago, part of the mud deposited by the river was cleared out of it, and it retained the water three months longer. Schemes have lately been adopted for opening and per- fecting this canal. The Pelusiae branch, which discharges itself into the eastern part of the lake of Tanais, or Menzalé, is utterly destroyed. With it perished the beautiful province which it fertilized, and the famous canal begun by Necos, and finished by Ptolemy Philadelphus. The famous works executed by kings, who sought their glory and happiness in the prosperity of the people, have not been able to resist the ravages of conquerors, and that despotism, which destroys every thing, till it buries itself under the wreck of the kingdoms whose foundation it has sapped. The canal of Amrou, the last of the great works of Egypt, and which formed a communication between Fostat and Colzoum, reaches at present no farther than about four leagues beyond Cairo, and loses itself in the lake of Pilgrims. Upon the whole, it may be confidently affirmed that upwards of one-third of the lands formerly in cultivation is metamorphosed into dreary deserts.
1049. Landed property in Egypt is for the most part to be considered as divided between the government and the religious bodies, who perform the service of the mosques, and have obtained possession of what they hold by the munificence of princes and rich men, or by the measures taken by individuals for the benefit of their posterity. Hence, a large proportion of the tenants and cultivators hold either of the government, or the procurators of the mosques. But there is one circumstance common to both, viz. that their lands, becoming unoccupied, are never let but upon terms ruinous to the tenants. Besides the property and influence of the beys, the mamelukes and the professors of the law are so extensive, and so absolute, as to engross into their own hands a very considerable part; the number of the other proprietors is extremely small, and their property liable to a thousand impositions. Every moment some contribution is to be paid, or some damage repaired; there is no right of succession or inheritance for real property, except for that called“ wakf,” which is the property of the mosques; every thing returns to government, from which every thing must be repurchased. According to Volney, the peasants are hired laborers, to whom no more is left than what is barely sufficient to sustain life; but Browne says, that these terms can be properly applied to very few of them.
1050. The occupier of the land, assisted by his family, is the cultivator; and in the operations of husbandry scarcely requires any other aid. And the tenant of land com. monly holds no more than he and his family can cultivate, and gather the produce of. When, indeed, the Nile rises, those who are employed to water the fields are commonly hired laborers. The rice and corn they gather are carried to their masters, and nothing is reserved for them but dourra, or indian millet, of which they make a coarse and taste- less bread without leaven; this, with water and raw onions, is their only food through- out the year; and they think themselves happy if they can sometimes procure a little honey, cheese, sour milk, and dates. Their whole clothing consists in a shirt of coarse blue linen, and in a black cloak. Their head-dress is a sort of cloth bonnet, over which they roll a long handkerchief of red woollen. Their arms, legs, and breasts are naked, and some of them do not even wear drawers.
1051. The agricultural products of Egypt are grain of most sorts, and particularly rice. Barley is grown for the horses, but no oats are seen. In the Delta a crop of rice and a crop of barley are obtained within the year on the same ground. Sometimes instead of barley a fine variety of the soil(Trifolium Alerandrinum of Forskal) is sown without ploughing or harrowing.‘The seed sinks to a sufficient depth in the moist soil, and pro- duces three cuttings before the time for again sowing the rice.
1052. Rice is sown from the month of March to that of May; and is generally six months in coming to maturity. In reaping, it is most commonly pulled up by the roots; and as the use of the flail is unknown in Egypt, the rice plants are spread in thick layers on floors, formed of earth and pigeon’s dung, which are well beaten, and very clean; and then, in order to separate the grain from the straw, they make use of a sort of carts, constructed like our sledges, with two pieces of wood joined together by two cross bars; between the longer sides of. this sledge are fixed transversely three rows of small wheels, made of solid iron, and narrowed off towards their circumference. On the fore part is fixed a high seat, on which a man sits, for the purpose of driving two oxen that are hamessed to the machine, and thus moving it in a
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ceed-time Vanes? ven to sent cut in February, k harvest in the Sale iistance from ther wear, Where the anmualy, In dest eat, and advancl casts the seed Upo and four months 2 use, the stalks ar out rice; and by and slackly baked Lower Eoypt, cl 1054 Flac’ town in con! shirt in this co 1055, Of t prepare intox capsules, they capsules with 1056. The people don sold in bund to be cut til
L057, Fruit fig-trees which Thebais and i and yielding a of palm-tree t fruit, afford fi for making ba lightness and s other from the earth-nut, but small tubercle The Bevpti
soil of Beypt, ar apple.tree,(dno to the taste and are refteshed by, reservoir, from y dfolia). grows hy generally consun JeWsmallow, an the
atle,”a y anlous Purposes uly Wood that is manufactures,} lor this use a Dla Called“helbe,” j Aitects of the to Mneredible avidity tended, that it is Wms and the ‘EAUst@ great nu ible article Of foc tel enjoy the
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Boox I. AGRICULTURE IN AFRICA. 173
circular direction over every part of the heap of rice, till the grain 1s completely separated from the straw; the grain is then spread in the air to be dried. The dried rice is carried to the mill, where it is stripped of its chaff or husk. This mill consists of a wheel turned by oxen, which sets several levers in motion 5 and at their extremity is an iron cylinder, about a foot long, and hollow underneath; these cylinders bent in troughs, which contain the grain; and at the side ofeach trough there stands a man, whose business it is to place the rice under the cylinders, The next operation is to sift the rice in the open air, by filling a small sieve, which a man lifts over his head, and thus lets fall, with his face tured to the wind, which blows away the small chaff or dust. This cleaned rice is put a second time into the mill, in order to pleach it; it is afterwards mixed up in troughs with some salt, which contributes very much to its white- ness, and also to its preservation; and in this state it is sold. Rice is furnished in great quantities in the Delta; and that which is grown in the environs of Rosalta is more esteemed on account of its preparation, than that which is produced in the vicinity of Damietta. The produce of the one and the other is equally wonderful. In a good season, that is, when the rise of the Nile occasions a great expansion of its waters, the profit of the proprietors of rice fields is estimated at fifty per cent. clear of all expenses. Savary says, that it produces eighty bushels for one.::
1053. Wheat is sown as soon as the waters of the Nile have retired from the lands appropriated to it; the seed-time varies with the latitude, and also the harvest, which is earlier in Upper than in Lower Egypt. Near to Syene they sow the barley and the corn in October, and reap it in January. Towards Girge they cut in February, and in the month of March in the vicinity of Cairo. This is the usual progress of the harvest in the Said. There is also a number of partial harvests, as the lands are nearer or ata greater distance from the river, lower or more elevated. In the Lower Egypt they are sowing and reaping all the year. Where the waters of the river can be procured, the earth is never idle, and furnishes three crops annually. In descending from the cataracts in January, the corn is seen almost ripe; lower down it is in ear, and advancing further, the plains are covered with verdure. The cultivator, in general, merely casts the seed upon the moistened earth; the corn soon springs up from the mud; its vegetation is rapid, and four months after it is sown it is fit to be reaped. In performing this operation, the sickle not being used, the stalks are pulled up by the roots, and carried to large floors, like those which are used for treading out rice; and by a similar operation the corn is separated from the ear. Unripe ears of corn are dried and slackly baked in an oven, and being afterwards bruised and boiled with meat, form a common dish in Lower Egypt, called‘* ferik.”
1054. Flav has been cultivated in Egypt from the most remote period, and is still grown in considerable quantities. Indigo is also grown for dyeing it, the color of the shirt in this country being universally blue.
1055. Of the hemp, which is abundantly cultivated in this country, the inhabitants prepare intoxicating liquors; and also by pounding the fruits into thin membranous capsules, they form a paste, which answers a similar purpose; and they also mix the capsules with tobacco for smoking.
1056. The sugar-cane is also one of the valuable productions of Egypt. The common
© is is oD x people do not wait for the extraction of the sugar, but cut the canes green, which are sold in bundles in all the towns. They begin to ripen in October, but are not in general fit to be cut till November or December.‘The sugar-refiners are in a very imperfect state.
1057. Fruit trees of various species abound in this country. Among these we may reckon the olive-tree, fig-trees which yield figs of an exquisite flavor, and the date-tree, which is to be found every where in the Thebais and in the Delta, in the sands as well as in the cultivated districts, requiring little or no culture, and yielding a very considerable profit, on account of the immense consumption of its fruit. The species of palm-tree that furnishes dates produces also a bark; which, together with its leaves and the rind of its fruit, afford filaments from which are manufactured ropes and sails for boats. The leaves are also used for making baskets and other articles. The very long rib of the branches is employed, on account of its lightness and solidity, by the mamelukes, in their military exercises, as javelins, which they throw at each other from their horses when at full speed. A species of cyperus, which produces a fruit resembling the earth-nut, but of a much more agreeable flavor, is cultivated in the environs of Rosetta; and the small tubercles are sent to Constantinople and other towns of the Levant, where they are much valued. The Egyptians press from them a milky juice, which they deem pectoral and emollient; and give them to nurses, in order to increase the quantity of their milk. The banana trees, though not natives of the soil of Egypt, are nevertheless cultivated in the northern parts of that country.‘The papaw, or custard apple-tree,(Anona), is also transplanted into the gardens of Egypt, and yields a fruit equally gratifying to the taste and smell. In the shade of the orchards are cultivated various plants, the roots of which are refreshed by the water that is conveyed to them by little trenches; each enclosure having its well or reservoir, from which the water is distributed by a wheel, turned by oxen. The mallow(Maiva rotun- difolia) grows here in abundance: it is dressed with meat, and is one of those herbs that are most generally consumed in the kitchens of Lower Egypt. Two other plants used as food, are the garden jew’s mallow, and the esculent hibiscus. Another tree, which appears to be indigenous in this country, is the“atle,”a species of larger tamarisk(Tamarix orientalis, Forskal.) The wood of this tree serves for various purposes; and among others, for charcoal. It is the 169 only wood that is common in Egypt, either for fuel or for a manufactures. Fenu-greek is cultivated for fodder, though for this use a plant called barsim, is preferred. The plant called“helbe,” is cried about for sale in November in the streets of the towns; and it is purchased and eaten with incredible avidity, without any kind of seasoning. It.is pre- tended, that it is an excellent stomachic, a specific against ld worms and the dysentery, and, inshort, a preservation.“Ves against a great number of disorders. Lentils form a consider--NAXS=4 able article of food to the inhabitants of Upper Egypt, who Sel rarely enjoy the luxury of rice. The Egyptian onions are AAS remarkably mild, more so than the Spanish, but not so large.*Z/ Bos They are of the purest white, and the lamina are of a ¢-4 y softer and looser contexture than that of any other species.(/A\ They deteriorate by transplantation; so that much must de- pend on the soil and climate. They remain a favorite article of food with all classes; and it is usual to put a layer or two of them, and of meat, on a spit or skewer, and thus roast them over a charcoal fire. We need not wonder at the desire of the Israelites for the onions of Egypt. Leeks are also cultivated and eaten in this country; and se all the species of European vegetables abound in the gardens of Rosetta. Millet and Turkey corn, the vine, the henné or Egyptian privet, the water-melon(fig, 169.) are cultivated in bgypt;
SS
174 HISTORY OF AGRICULTURE.
and the country furnishes a variety of medicinal plants, as carthamus, tinctorius
coloquintida,&c., and that curious rooted plant the mandrake(fig. 171.) must at least be a native of the island of Canaan. a
1058. The live-stock of Egyptian agriculture is princi- pally the ox, the buffalo, the horse, ass, mule, and camel. The oxen of Egypt are employed in tillage, and in giving motion toa variety of hydraulic machines; and as they are harnessed so as to draw from the pitch of the shoulder, their withers are higher than those of our country; and, indeed, they have naturally some resemblance to the bison(Dos ferus), or hunched ox. It has been said that the cows of Egypt bring forth two calves at atime; an instance of fecundity which sometimes happens; but is not reckoned very com- mon. Their calves are reared to maturity, as veal, which is forbidden by the law of the Mahometans, and the Copts also abstain from the use of it, is not eaten in Egypt.
1059. The buffalo is more abundant than the ox, and is equally domestic. It is easily distinguishable by the con- stantly uniform colour of the hair, and still more by a remnant of ferocity and intractability of disposition, and a wild lower-
Parr I.
(fig. 170.), senna,
1062.
ing aspect, the characteristics of all half-tamed animals. The females are reared for the sake of the milk, and the males to be slaughtered and eaten.‘The flesh is somewhat red, hard, and dry; and has also a musky: smell, which is rather un- pleasant.
1060. The horses of Egypt rank next to those of the Arabians, and are remarkable for their valuable qualities. Here, as in most countries of the East, they are not castrated either for domestic use or the cavalry.
1061. The asses of Egypt have no less a claim to distinction than the horses; and these, as well as those of Arabia, are esteemed for their vigor and beauty the finest in the world. They are some- times sold for a higher price than even the horses. They are more hardy than horses, Jess difficult as to the quality and quantity of their food, and are therefore preferredin traversing the deserts. The handsomest asses seen at Cairo are brought from Upper Egypt and Nubia. On ascending the Nile, the influence of climate is perceptible in these animals, which are most beautiful in the Said, but arein every respect inferior towards the Delta. With the most distinguished race of horses and asses, Egypt possesses also the finest mules; some of which, at Cairo, exceed in value the price of the most beautiful horses.
The camel and dromedary, as every body knows, are the beasts of burden in Egypt, and not only answer all the purposes of our waggons and public conveyances, but bear the conveyances of luxury(, pay their visits on extraordinary occasions.
ig. 172.), in which the females of the higher classes
Sos if
1063. hee the gontrivance gsate the cart&
1064. Zhe a ht of rial cual 10 USE fo The lands neat py wheels in th gelds for a 02 small embank round the
1065. Nuc oftheanciens, country or des habited byawte wt lire biel and dell in gt buts,(fi 133, Srnsect, 3.
1066, These southern shore at present dept tributary to the
1067. Tipo much agricult and piracy; al felds of gral Jotus-tree(Zi excellent win
1068, The soil is in get more rare th neighbors eit barren, and perature, ani trees, The rivulets» it firstrains con grain, and pl and we may. (38,) The ¢ and horse, curiously. shap taurus, fem, 0
1069. The t point of view, Dain of Met Illes jn length ine of the bra Vatered by sey a it is better tindom, Th tlhe farms; ae oun in th thatthe Mettop, tenn, roots ee ate produ Me garden of th ae Inthe
ated,
; key of 2 and ey a and whi t“ta tes, 3 *; tice hi
advan
alf-tamed @ sake of ered and and dry: ather ut
L to those for their ntries of domestic
claim(0 well as igor and 2 somes » horses, icult as od, and deserts, brought cending ceptible iful in owards d race o finest 1 value
den in ances, classes
a
Boox I. AGRICULTURE IN AFRICA. 175
1063. The agricultural implements of Egypt are simple; but some of them, particularly the contrivances for raising water, very ingenious,‘The plough is of the rudest kind, as are the cart and spade.
1064. The operations of threshing and sowing have been‘already described(1052-3.). That of irrigation is performed asin other countries. At present there are reckoned eighty canals in use for this purpose, some of them twenty, thirty, and forty leagues in length. The lands near the river, as the Delta, are watered directly from it; the water is raised by wheels in the dry season; and when the inundation takes place, it is retained on the fields for a certain time by small embankments made round them.
1065. Nubia, the Ethiopia of the ancients, is amiserable country or desert, thinly in- habited by a wretched people, who live chiefly on millet, and dwell in groups of mud huts,(fig. 173.)
Sursecr. 3. Present State of Agriculture in the Mahometan States of the North of Africa.
1066. These are Tripoli, Tunis, Algiers, and Morocco; territories chiefly on the southern shore of the Mediterranean, rich, and celebrated in the ages of antiquity, but at present depressed by the barbarism and fanaticism of their rulers, who are in general tributary to the Porte.
1067. Tripoli is generally distinguished into maritime and inland. In neither is there much agriculture, for the inhabitants of countries on the coast live chiefly by commerce and piracy; and those of the inland parts on plunder and robbery. There are a few fields of grain, chietly rice, round the capital, date palms, olives, and what is called the lotus-tree(Zizyphus lotus), whose fruit is reckoned superior to the date, and makes excellent wine.
1068. The kingdom of Tunis was formerly the chief seat of Carthaginian power. The soil is in general impregnated with marine salt and nitre, and springs of fresh water are more rare than of salt. But the Tunisians are much more agriculturists than their neighbors either of Tripoli or Algiers. The southern parts of the country are sandy, barren, and parched by a burning sun: the northern parts enjoy a better soil and tem- perature, and are more under cultivation: near the sea, the country is rich in olive- trees. The western part abounds in mountains and hills, and is watered by numerous rivulets; it is extremely fertile, and produces the finest and most abundant crops. The first rains commonly fall in September, and then the farmers break up the ground, sow their grain, and plant beans, lentils, and garvancos. By May following, harvest commences; and we may judge of its productiveness by what the Carthaginians experienced of old (38.) The ox and the buffalo are the principal beasts of labor, and next the ass, mule, and horse. Both the first and the last have here degenerated in size. They have a curiously-shaped cow(fig. 174.), which some consider a distinct species from the bos taurus, foem. or common cow.
1069. The territory of Algiers, in an agricultural point of view, is chiefly distinguished by the fertile plain of Mettijiah, a vast country, which stretches fifty miles in length, and twenty in breadth, to the foot of one of the branches of Mount Atlas. This plain is watered by several streams; the soil is light and fertile, and it is better cultivated than any other district of the kingdom. The country-seats and masharcas, as they call the farms of the principal inhabitants of Algiers, are found in these plains; and it is chiefly from them that the metropolis is supplied with provisions. Flax, alhenna, roots, potherbs, rice, fruit, and grain of all kinds are produced here to such perfection, that the Metijiah may be justly reckoned the garden of the whole kingdom.
1070. In the inland provinces are immense tracts of country wholly uninhabited and uncultivated. There are also extensive tracts of brushwood, and some timber-forests. The fertility of the soil decreases in approaching Sahara or the Desert, although in its borders, and even in the desert itself there are some districts which are capable of culti- vation, and which produce corn, figs, and dates. These regions are inhabited by no- madical tribes, who, valuing themselves on their independence, endure with fortitude
and resignation the inconveniences attending their condition, and scarce regret the want of those advantages and comforts that pertain to a civilised state of society.—
176 HISTORY OF AGRICULTURE. Pinan
1071. The seed-time here, as in Tunis, is during the months of October and November, when wheat, barley, rice, Indian corn, millet, oh various kinds of pulse, are sown. In six months, the crops are harvested, trod out by oxen or horses, winnowed by throwing with a shovel against the wind, and then lodged in subterraneous magazines,
1072. The empire of Morocco is an extensive territory of mountains and plains, and chiefly an agricultural country. The mountains consist of limestone or clay, or a mix- ture of both, and no vestiges appear of granite, on which they are supposed to rest. The
climate is temperate and salubrious, and not so hot as its situation would lead us to suppose.‘The rains are regular in November, though the atmosphere is not loaded with clouds: January is summer; and in March barley-harvest commences. The soil consists either of pure sand, often passing into quicksand, or of pure clay; often so abundantly mixed with iron ochre, that agricultural productions, such as wax, gum, wool distinguished by a reddish tint, which, in the wool, cannot be removed b bleaching. Cultivation, in this country, requires little labor, and, in general, no ma- nure; all other weeds and herbaceous plants, not irrigated, are, at a certain season, burnt up by the sun, as in some parts of Spain(696.); the ground being then perfectly clean and dry, is rendered friable, and easily pulverised by the rains; and one rude stir. ring suffices both for preparing the soil and covering the seed. The produce in wheat, rice, millet, maize, barley, chick-peas(Cicer arietinum), is often sixty fold; thirty fold is held to be an indifferent harvest.
1073. In general they make use of no manure, except that which is left on the fields by their flocks and herds. But those people who inhabit places near forests and woods, avail themselves of another method to render the soil productive. A month or two before the rains commence, the farmer sets fire to the underwood, and by this confla- gration clears as much land as he intends to cultivate, The soil, immediately after this treatment, if carefully ploughed, acquires considerable fertility, but is liable soon to be- come barren, unless annually assisted by proper manure.‘This system of burning down the woods for the sake of obtaining arable land, though not generally permitted in states ditferently regulated from this, is allowable in a country, the population of which bears so small a proportion to the fertility of the soil, and in which the most beautiful tracts are suffered to remain unproductive for want of hands to cultivate them. In this man- ner the nomadic Arab proceeds in his conflagrations, till the whole neighborhood around him is exhausted; he then packs up his tents and travels in search of another fertile place where to fix his abode, till hunger again obliges him to continue his migra- tion. Thus it is computed, that at one and the same time no more than a third part of the whole country is in a state of cultivation.
1074. The live stock of Morocco consists of numerous flocks and herds. Oxen of a small breed are plentiful, and also camels; the latter animal being used both in agri- culture, for travelling, and its flesh as food. The horses are formed for fleetness and activity, and taught to endure fatigue, heat, cold, hunger, and thirst. Mules are much used, and the breed is encouraged. Poultry is abundant in Morocco; pigeons are ex- cellent; partridges are plentiful; woodcocks are scarce; but snipes are numerous in the season; the ostrich is hunted both for sport and for profit, as its feathers are a consider- able article of traffic; hares are good; but rabbits are confined to the northern part of the empire, from Saracha to Tetuan. Fallow deer, the roebuck, the antelope, foxes, and other animals of Europe, are not very abundant in Morocco; lions and tigers are not uncommon in some parts of the empire: of all the species of ferocious animals found in this empire, the wild boar is the most common: the sow has sever and her young, which are numerous, serve as food for the lion.
1075. The nomadic agriculturists form themselves into incampments, called douhars, (fig. 175.) and composed of numerous tents, which form a circle or crescent, and their
?&e. are y washing or
al litters in the year,
flocks and herds returning from pasture occupy the centre. Each douhar has a chief, who is invested with authority for superintending and governing a number of these en. campments; and many of the lesser subdivisions are again reunited under the govern- ment of a<¢ bashaw;° some of whom haye 1000 douhars under their command, Their
wat of soil f é yenty ive 0 len b har of the 1 “pgp ata dita city, and preset a si and W000! th + Tis thelr us!
1 I eath their lS
fo round stones, arnt
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| entries, owing t + grperty in land, as
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1077, Of the mnnu
te Jalefs and Foula country consists of
Congo,
| Sussect, 4:
life are augms wainst the depredati
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whole fields of cm: | 84 pastime, but as#
1079. The Eng the Foulahs, on ¢ of promoting Afi the county, and 4 Pepper, tobacco, ang
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the fields by and Woods Onth or try this conf, ly alter this SOON to he. Imning down ted in states Which bears utiful tracts N this man. iehborhoad of another his migra hird part of
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Bgox I. AGRICULTURE IN AFRICA. ECT
tents, of a conical form, and about eight or ten feet high in the centre, and from twenty to twenty-five in length, are made of twine, composed of goat’s hair, camel’s wool, and the leaves of the wild palm, so that they keep out water; but being black, their ap-~ pearance at a distance is not agreeable. In camp the Moors live in the utmost simpli- city, and present a faithful picture of the earth’s inhabitants in the first ages. Inthe milk and wool of their flocks, they find every thing necessary for their food and cloth- ing. It is their custom to have several wives, who are employed in all domestic affairs. Beneath their ill-secured tents they milk their cows and make butter; they sort and sift their wheat and barley, gather vegetables, grind flour with a mill composed of two round stones, eighteen inches in diameter; in the upper one of which is fixed a handle by which it is made to turn upon an axle.‘They daily make bread, which they bake between two earthen plates, and very often on the ground heated by fire.
1076. No alteration in the agriculture of Morocco seems to have taken place for several centuries, owing to the inseeurity of its government; every thing being despotic; and property in land, as well as the person and life, being subject to the caprice of the sovereign, and the laws of the moment.
Sussecr. 4. Present State of Agriculture on the Western Coast of Africa.
1077. Of the innumerable tribes which occupy the west coast of Africa, the principal are the Jalefs and Foulahs, and of the former little is known. The remaining part of the country consists of the territories of Benin, Loango, and Congo.
1078. The soil of the Foulah country is fertile. The inhabitants are said to be diligent as farmers and graziers, and to raise millet, rice, tobacco, cotton, pease, carob beans(Ceratonia siliqua, fig. 176.), roots, and fruits in abundance. Their live stock, however, constitutes their chief wealth, and accordingly they roam, pursuing a kind of wandering life, from field to field, and from country to country, with large droves of cows, sheep, goats, and horses; removing, as the wet and dry seasons require, from the low to the high lands, and continue no longer in one place than the pasture for their cattle will allow. The inconvenience and labor of this roving life are augmented by the defence they are obliged to provide against the depredations of the fierce animals with which the countryg,\ abounds; as they are molested by lions, tigers, and elephants, from the om\ Jand, and crocodiles from the rivers. At night they collect their herds Si and flocks within a circle of huts and tents in which they live, andwhere S$ S they light fires in order to deter these animals from approaching them.( During the day they often place their children on elevated platforms of reeds(fig. 177.) for security from wild beasts, while they are hunting or pursuing other labors. The elephants are so numerous, that they appear in droves of 200 together, plucking up the small trees, and destroying whole fields of corn; so that they have recourse to hunting, not merely as a pastime, but as the means of self-preservation.
1079. The English settlement of Sierra-leone is situated to the west of the country of the Foulahs, on the river Senegal. It was formed in 1787, for the benevolent purpose of promoting African civilisation. A tract of land was purchased from the prince of the country, and a plantation established, in which is cultivated rice, cotton, sugar, pepper, tobacco, and other products; and gum arabic(Mimosa nilotica, Jig. 178.), and
177
other valuable articles are procured from the native woods. In these woods the pine apple grows wild in the greatest abundance and luxuriance. The fruit is large and highly flavored, and, when in season, may be purchased by strangers at less‘than a halfpenny each. A meal in common use by the natives is made from the pounded roots of the manioca(Jatropha manihot). This‘meal, after being first ground from the root, ‘Ss made into a pulp and pressed to get rid of a poisonous juice. It is then re-dried and constitutes a wholesome farina, which forms almost the entire food of the slaves. N
178 HISTORY OF AGRICULTURE. Parr I.
1080. Benin is an extensive country, very productive of fruits, trees, and plants; including the orange, cocoa, cotton,&c. and abounding in animals, among which is enumerated civet cats, and a sort of hairy sheep. Agriculture, however, is little attended to, the chief object being the commerce of slaves.
1081. The inhabitants of Loango, instead of cultivating the land, content themselves with bread and fish, and such fruits, greens, and pulse, as the soil naturally produces. Cocoas, oranges, and lemons, are not much cultivated; but sugar-canes, cassia, and tobacco, as well as the palm, banana, cotton, and pimento- trees, grow here plentifully. They have also a great variety of roots, herbs, fruits, grain, and other vegetables, of which they make bread, and which they use for food. They have few quadrupeds for domestic use, except goats and hogs, but poultry and various sorts of game are abundant: among the wild beasts they have the zebra, and a great number of elephants, whose teeth they exchange with the Europeans for iron.
1082. Congo is an extensive and very fertile country; but the inhabitants are indolent, and neglect its culture.‘The operations of digging, sowing, reaping, cutting wood, grinding corn, and fetching water, they leave to their wives and slaves. Under their management, several sorts of grain and pulse is culti- vated, especially maize, of which they have two crops in a year; but such is the heat of the climate, that wheat will not produce plump seeds; it shoots rapidly up into the straw and ear; the former high enough to hide a man on horseback, and the latter unfilled. Grass grows to a great height, and affords sheltering places for a number of wild animals and noisome reptiles and insects. The Portuguese have introduced a variety of palm and other fruit trees, which are better adapted for producing human food in such a climate
1083. The boabab(Adansonia digitata) is a native of Congo. This tree, discovered by the celebrated French botanist, Adanson, is considered the largest in the world: several, measured by this gentle- man, were from sixty-five to seventy-eight feet in circumference, but not extraordinarily high. The trunks were from twelve to fifteen feet high, before they divided into many horizontal branches, which touched the ground at their extremities; these were from forty-five to fifty-five feet long, and were so large, that each branch was equal to a monstrous tree; and where the water of a neighboring river had washed away the earth so as to leave the roots of one of these trees bare and open to the sight, they measured one hundred and ten feet long, without including those parts of the roots which remained covered. It yields a+ fruit which resembles a gourd, and which serves for vessels of various uses; the bark of which fur- nishes them with a coarse thread, which they form into ropes and into a cloth, with which the natives cover their middle from the girdle to the knees; and the small leaves ef which supply them with food in a time of scarcity, while the large ones are used for covering their houses, or by burning for the manufacture of good soap. At Sierra-leone, this tree does not grow larger than an orchard apple
tree.
1084. Of the bark of the infanda tree, and also of the mulemba, resembling in many respects our laurel, they form a kind of stuff or cloth, which is fine, and used for cloaks and girdles by persons of the highest rank. The oil of their palm-trees is used instead of butter; with the moss that grows about the trunk, the rich commonly stuff their pillows; andthe Giagas apply it to their wounds with goed effect: with the leaves the Moors cover their houses, and they draw from these trees, by incision, a pleasant liquor like wine, which, however, turns sour in five or six days.
1085. Among other fruits and roots, they have the vine, which was brought thither from Candia, and yields grapes twice a year.
1086. The dive stock common to other agricultural coun- tries, are here much neglected; but the Portuguese settlers have directed their attention to cows, sheep, and goats, chiefly on account of their milk. Like most parts of Africa, this country swarms with wildanimals. Among these, the zebra, buffalo, and wild ass, are hunted, and made useful as food or in commerce. The dante, a kind of ox, whose skins are sent into Germany to be tanned and made into targets, called“‘ dantes,” abounds, and also the cameleon, a great variety of monkies,(fig. 179.), and all the sorts of domestic poultry and game.
Sunsect. 5. Present State of Agriculture at the Cape of Good Hope.
1087. The Dutch colonized the Cape of Good Hope in 1660, and the English obtained possession of it in 1795,
1088. The climate of this cape is not unfriendly to vegetation; but it is so situated, within the influence of periodical winds, that the rains are very unequal, descending in torrents during the cold season, though hardly a shower falls to refresh the earth in the hot summer months, when the dry south-east winds prevail. These winds blast the foliage, blossom, and fruit, of all those trees that are not well sheltered; nor is the human constitution secure against their injurious influence. As a protection from these winds, the colonists who inhabit the nearest side of the first chain of mountains, beyond which their effect’ does not very sensibly extend, divide that portion of their ground which is appropriated to fruit groves, vineyards, and gardens, by oak screens; but they leave their corn lands altogether open.|‘The temperature of the climate at the Cape is_re- markably affected by local circumstances. In summer the thermometer is generally be- tween 70° and 80°, and sometimes between 80° and 90°, but scarcely ever exceeds 95°.
1089. The surface of the country consists of some mountains and extensive barren- like plains. The upper regions of all the chains of mountains are naked masses of sand- stone; the vallies beneath them are clothed with grass, with thickets, and in some cases with impenetrable forests. The inferior hills or knolls, whose surfaces are generally composed of loose fragments of sandstone, as well as the wide sandy plains that connect them, are thinly strewed over with heaths and other shrubby plants, exhibiting to the eye an uniform and dreary appearance. In the lowest part of these plains, where the
Fron I
aes subside 2! secetation 1 OMe suo; and the f ie sandy deserts, joswaste, 1090, Soils, 10 teplowgh fll the hounding with s pears, except inp habitations, where rls of water, the: The extensive pai are interspersed bet than the lower pla lard surfaces of ¢ petal drought ant bamen plains, are angilaceous limest tat ae capable of more especialy in af every sort, Th estended cultivatio 1091, Landed onfour different te n condition of fathing per acre reat: the third a list was that of aeertain sum," originally measur near the centre o walked for half g giving thus the r 1092, Of thes walks, They b directed with th Scattering of ma astonishing tose little artificial stn been taken, Wh up fresh oun, tats itis per comes gi breaking i up ane Perhaps, intrusteq t 1053,‘The asi oe and br of grain an¢ . e Supply of W
Mt Feeding horses 1 ely horses, ue Thdian Cor ‘ieybeans, and oth Tels g
but Ut
he orange
ny O09 Tt of hairy vs,; id and fis
IS, are tot d pimenty and Other
Iupeds fj r
5 Ule With the
Neglect its ning Wat t Is
XUUced q Na climate
obtained
situated, nding in th in the blast. the e human e winds, nd which id whieh rey leave eis re rally be- ds 95°. barren- if sand- 1 cases snerally connect g to the here the
Boox I. AGRICULTURE IN AFRICA. 179
waters subside, and, filtering through the sand, break out in springs upon the surface, vegetation is somewhat more luxuriant. In such situations the farm-houses are generally placed; and the patches of cultivated ground contiguous to them, like the“ oases’’ in the sandy deserts, may be considered as so many verdant islands in the midst of a bound- less waste.
1090. Soils, in this tract of‘country, are generally either a stiff clay, impenetrable by the plough till they are soaked by much rain; or light and sandy, tinged with red, and abounding with small round quartzose pebbles. A black vegetable mould seldom ap- pears, except in patches of garden-ground, vineyards, and orchards, that surround the habitations, where, by long culture, manure, and the fertilizing influence of springs or rills of water, the soil is so far mellowed as to admit the spade at all seasons of the year, The extensive plains, known in the colony by the Hottentot name of<« Karroo,”’ which are interspersed between the great chains of mountains, exhibit a more dismal] appearance than the lower plains, which are chequered with patches of cultivated ground; and their hard surfaces of clay, glistening with small crystals of quartz, and condemned to per- petual drought and aridity, are ill adapted to vegetation. The hills that break these barren plains, are chiefly composed of fragments of blue slate, or masses of feltspar, and argillaceous limestone. However, in those Karroo plains that are tinged with iron, and that are capable of being watered, the soil is extremely productive. In such situations, more especially in the vicinity of the Cape, they have the best grapes, and the best fruit of every sort. The great scarcity of water in summer is much more unfavorable to an extended cultivation than either the soil or the climate.
1091. Landed property was held by the original Dutch from the government of the Cape on four different tenwres. The first tenure was that of an yearly lease, renewable for ever on condition of payment of a certain rent, not in general exceeding eight-tenths of a farthing per acre: the second tenure a sort of perpetual holding, subject to a small rent: the third a holding on fifteen years leases at a quit-rent, renewable: and the last was that of“ real estate’’ or freehold, the settler having purchased his farm at once for acertainsum. The second tenure is the most common in the colony. The lands were originally measured out and allotted in the following manner: a stake was stuck as near the centre of the future estate as could be guessed, and a man, starting from thence, walked for half an hour in a straight line, to each of the four points of the compass; giving thus the radii of a circle that comprised a space of about 6000 acres.
1092. Of these extensive farms, the greater part is, of course, mere sheep and cattle walks. They break up for tillage, patches here and there, where the plough can be directed with the least difficulty, or the soil is most inviting for the purpose.
The eaves being in general not higher é ea from the ground than four or six feet, the doors could no ut stooping. A small unglazed window admitted light, but there was neither chimney nor any other opening in the roof by which the smoke might escape.”(Burchell’s Travels, i. 112.) 1110. The cattle of all the Hottentot and other tribes are kept in circular folds during night; and it is remarkable that these folds are the only burial places known to be in use among that people.“* Corn is preserved in what may be termed large jars, of various dimen- sions, but most commonly between four and five feet high and three wide. The shape of these corn jars is nearly that of an eggshell, having its upper end cut off: sometimes their mouth is contracted in a manner which gives them a great resemblance to an European oiljar. They are formed with stakes and branches fixed into the ground and in- terwoven with twigs; this frame-work being afterwards plastered within and without with loam and cow-dung. Frequently the bottoms of these jars are raised about six inches or a foot above the ground; and the lower part of the stakes being then uncovered gives them N Q
Vv
182 HISTORY OF AGRICULTURE. Parr I.
the appearance of standing on short legs. Their contents are usually protected by a covering of skin or straw.’‘This mode of keeping their corn and beans, Burchell ob- serves, shows a degree of ingenuity equal to that which is displayed in the construction of their houses, and is to be admired for its simplicity and perfect adequateness to the purpose. In the dwellings of the richer inhabitants, the back part of the houses is com- pletely filled with jars of this kind.”(Travels, ii. 520.)
1111. The natives of the south of Africa live much on bulbous roots, of which their country is naturally more productive than any 185 other. Burchel has enumerated a_ considerable number which he saw them use. One of the most remarkable grows on the mountains of Graf-| reynet, and is called Hottentot’s bread as P phantopus, Willd., Testudenaria, Salisb., fig.
Its bulb stands entirely above ground, and grows Se an enormous size, frequently three feet in height 7 and diameter. It is closely studded with angular ligneous protuberances, which give it some re- semblance to the shell of a tortoise. The inside is-< a fleshy substance, which may be compared to< turnip, both in substance and color. From the top‘ of this bulb arise several annual stems, the branches of which have a disposition to twine round any shrub within reach. The taste of this bulb is‘ thought to resemble that of the yam of the East Indies, the plant being closely allied to the genus Dioscorea.{ Burchell’s Timea F i. 147.)
1112. The Bachapins are a people of the interior—~ LT Hy A
of South Africa, which were visited by Burchell. Their agriculture, he says, is‘extremely simple and artless. It is performed entirely by women.‘To prepare the ground for sowing they pick it up to the depth of about 186 four inches, with a kind of hoe or mattock, which differs in nothing from a carpenter’s adze but in being two or three times larger. The corn they sow is the Caffre corn or Guinea corn, a variety of millet(Holcus Sorghum Caffrorum).‘They cultivate also a kind of kidneybean, and eat the ripe seeds, and also water-melons, pumpkins, and the calabash gourd for the use of its shell as a domestic vessel for drinking and various uses. They are inordinate smokers of tobacco, but they do not cultivate the plant. Burchell gave them some potatoes and peach stones to cultivate, with which they were exceedingly pleased and thankful.(Travels, ii. 518.)
1113. The Bushman spade( fig. 186.) is a pointed stick about three feet long, to which there is affixed about the middle a stone to increase its power in digging up bulbous roots. This stone is about five inches in diameter, and is cut or ground very regularly to a round form, and perforated with a hole large enough to receive the stick anda wedge by which it is fixed to its place.(Burchell’s Travels, ii. 30.)
Sussecr. 6. Present State of Agriculture on the Eastern Coast of Africa, and the “Afri ican Islands.
1114. Of the various countries on the east coast of Africa the chief is Mocaranga, whose agriculture may be considered as a specimen of that of the savage tribes of the other states. The climate is temperate, though the mountains called Supata, or the spine of the world, forming a great chain trom north to south, are perpetually covered with snow; the air clear and salubrious, and the soil fertile and well watered, so that its pastures feed a great number of cattle, more valued by the inhabitants than their gold. The inland parts of the country, however, are sandy, dry, and barren, The products of the country on the coast, are rice, millet, and maize, but no wheat; sugar canes and cotton are found both wild and cultivated. They are without the ox and horse, but elephants, ostriches, and a great variety of wild animals abound in the forests. According to the doubtful accounts of this country, the king on days of ceremony wears a little spade hanging by his side as an emblem of cultivation.
1115. The island of Madagascar is celebrated for its fertility, and the variety of its pro- ductions. Its climate is mild and agreeable; and the surface of the country is divided into the east and western provinces‘by a range of mountains. The summits of these mountains are crowned with lofty trees of‘long duration, and the low grounds are watered by torrents, rivers, and rivulets, which flow from them. The agricultural pro- ducts are rice, cotton, indigo, sugar, pulse, the yam, banana, cocoa, pepper, ginger, turmeric, and a variety of other fruits and spices. There are a great number of raw fruits and ese ae it plants, and many curious W code Oxen and flocks of sheep abound; but there are no horses, elephants, lions, or tigers. The culture is very imperfect, the
soil and the cane. of the seasons supplying the place.of labor and skill.
Joos I‘
1116; t Ho lusty of the Er ¢ olter pars ft! colar to that of th fhe sea ¢ coast, DU but) pers ily speaking, qf 4 ile, 2 one ‘of Cochil of Braal
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mitt fg 5) abound ah spontaneous ons are found janks of the river ofthe country, Ve The Isle uutural and agricu ofthe Mauritius. 1118, St Helen ind, occupied by Their chief produ
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1119, The Cap tot and unhealthy barren as to so rte, maize, banat canes, with abun
1120, The Car
culture of the pat generally rich, prietor of the condition of get are, wheat, bar the mulberry, er (Dracena), and The celebrated( of Teneriffe and within the last food of the inhat fig. 188.0), am rocks: and kali extracted, is found male fern( Phere into Hour, and y Canaries consists( te well-known(. thy lind in the Woo N21, The j islan tknders, that t ther Mes in the world ala freedom fg e iticent ts the g Mg very distant t( is high as the ar{0 their sun 5 the soil of y » and Special Ton nite hills to th
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of its pro- is divided of these ynds are ural pro- ginger, x of raw abound; rfect, the
fig. 188 a.), a moss used in dyeing, grows wild on all the
Book I. AGRICULTURE IN AFRICA. 183
1116. The Mauritius, or Isle of France, is a productive island, chiefly indebted to the industry of the French, who have introduced there most of the grains, roots, and fruits of other parts of the world, all of which seem to thrive. The climate is excellent, and similar to that of the Bourbon and Canary islands. The surface is mountainous towards the sea coast, but within land there are many spots both level and fertile. The soil is, generally speaking, red and stony. The agricultural products are numerous. A crop of maize, succeeded by one of wheat, is procured in one season from the same field. The rice of Cochin-China is extensively cultivated; the manioc, or cassava(Jatropha manihot) of Brazil; sugar, which is the chief product of export; cinnamon, clove, and nutmeg trees,&c. Oranges, citrons, and guavas 187 w| (fig. 187.) abound; and pine apples are said to S grow spontaneously. Many valuable kinds of woods are found in the forests; and on the banks of the rivers are fed the flocks and herds of the country.&
1117. Lhe Isle of Bourbon differs little in its natural and agricultural circumstances from that of the Mauritius.
1118. St. Helena is a rugged, but beautiful island, occupied by a few farmers, chiefly English. Their chief productions are cattle, hogs, and poultry; and when the India ships arrive every house becomes a tavern.
1119. The Cape Verd Islands are, in general, hot and unhealthy as to climate, and stony and barren as to soil. Some, however, produce rice, maize, bananas, oranges, cotton, and sugar- canes, with abundance of poultry.
1120. The Canary Islands having been subject to Spain for many centuries, the agri- culture of the parent country prevails throughout. The climate is temperate, and the soil generally rich. The stock of the farm belongs to the pro- prietor of the soil, who lends it to the cultivator, on\\ condition of getting half of the produce. The products K i) are, wheat, barley, rice, oats, flax, anise seeds, coriander,\ the mulberry, grape, cotton, sugar-cane, dragon’s blood-tree (Dracena), and a variety of other esculent plants and fruits. Ss The celebrated Canary wine is made chiefly in the islands of Teneritte and Canary. Potatoes have been introduced within the last fifty years, and now constitute the chief food of the inhabitants. The archil(Lichen rocella, Linn.
rocks; and kali(Salsola kali, fig. 188 b.}, from which soda is extracted, is found wild on the sea-shore. The roots of the male fern( Pteris aquilina) are, in times of scarcity, ground GY into flour, and used as food. The live-stock of the A777
Canaries consists of cattle, sheep, horses, and asses; and the well-known Canary-bird, with a great variety of others 4 abound in the woods. fice
1121. The island of Madeira is chiefly celebrated for its wine. It is the boast of the islanders, that their country produces the best wheat, the purest sugar, and the finest wines in the world, besides being blest with the clearest water, the most salubrious air, and a freedom from all noxious reptiles. The first view of the island is particularly magnificent; the country rising in lofty hills from every part of the coast so steep as to bring very distant objects into a foreground. The sides of these hills are clothed with vines as high as the temperature will admit; above this they are clothed with woods or verdure to their summits, as high as the sight can distinguish; excepting those columnar peaks, the soil of which has been washed away by the violent rains to which those lati- tudes, and especially such elevated parts, are liable. Deep ravines or valleys descend from the hills to the sea, and in’ the hollow of most of them flows a small river, which in general is rapid and shallow.‘The soil is clay on the surface, and large masses of it as hard as brick, are found underneath. The island, it is said, wken discovered by the Portuguese, was covered with wood; and the first step taken by the new settlers was to set fire to the wood. This conflagration is said to have lasted seven years, and to have been the chief cause of the fertility of the soil; but whatever may have been the effect at first, this fertility could not have lasted for three centuries.
1122. The lands of Madeira are cultivated on the metayer system: in entailed estates leases cannot be granted for a longer period than nine years; but in no case can the tenant be dismissed till he is paid the full value of his improvements.
N 4
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184 HISTORY OF AGRICULTURE. Parr I,
1123, The vine is cultivated chiefly in the French, but partly in the Italian manner. In the low grounds it is suffered to grow to a considerable height, and tied to trees, poles, or trellises; on the sides of the hills the terrace-culture is adopted, and there the plants are kept low er, and tied to single stakes or low trellises. The variety of grape cultivated is what in France is called the Rhenish 3; 2 sort of small black cluster; but its character is greatly altered since its transplantation to Madeira. The grape from which the Malmsey Madeira wine is made is the Ciotat of the French, or parsley-leaved muscadine with a white berry. The quantity of genuine malmsey produced annually is very small; and of that a good deal is supposed to be manufactured with refined sugar. The quality of the wine here as every where else depends more on the aspect and soil than on the kind of grape. The best is grown on the south side of the island, on the lower declivities which point towards the south-east; the west being always cooled by the sea breeze.
1124. Wheat is grown on lands previously prepared by the i culture of common broom. This is cut for fuel, and after a time, grubbed up and burnt on the soil. By these means, a crop of wheat is insured for a succession of years, more or less, according to the soil; after which the same process is again resorted to. For this purpose, the seeds of the broom are collected, and generally bear the same price by measure as wheat.
a
1125. The live-stock are not numerous. Animals of all sorts, as in most mountainous countries, are smail. The beef and mutton appears to a Briton Jean and tasteless; common poultry are small; but ducks and turkeys equal those of England. Pork is rare, but excellent, when well fed.
1126. The tropical fruits are not readily pro- duced here. In the villages are found guavas, bananas, oranges, and shaddocks,(fig. 189.) Pine apples are reared with great difficulty; but neither the granadilla nor the aligator pear, though they grow vigorously, produce fruit.
Secr. III. Present State of Agriculture in North America.
1127. The climate of this region, which extends from the vicinity of the equator to the arctic circle, is necessarily extremely various. In general, the heat of summer, and the cold of winter, are more intense than in most parts of the ancient continent. The middle provinces are remarkable for the unsteadiness of the weather. Snow falls plentifully in Virginia, but seldom lies above a day or two. Carolina and Florida are subject to in- sufferable heat, furious whirlwinds, hurricanes, tremendous thunder, and fatal light- nings. The climate of the western parts is least known; that of California seems to be in general moderate and pleasant.
1128. The surface of North America is nobly diversified with rivers, Jakes, mountains, and extensive plains, covered in many places with forests. Its shores are, in general, low, irregular, with many bays and creeks; and the central parts seem to present a vast fertile plain, watered by the Missouri and its auxiliary streams. New Mexico in surface is an alpine country, resembling Norway and Greenland; Labrador, and the countries round the Hudson sea, present irregular masses of mountain, covered with eternal snow. In general, all the natural features of America are on a larger scale than of the old world.
1129. The agriculture of North America is chiefly that of the north of Europe; but in the provinces near the equator the culture of the southern parts of Europe prevails; and in the West India islands, that of the warmest climates is followed; there being no production of any part of the world which may not be there brought to perfection. — After this general outline of the agricultural circumstances of North America, we shall select some notices of the agriculture of the United States, the Spanish dominions in North America, British possessions, unconquered countries, and North American islands or West Indies.
Sursecr. 1. Prescnt State of Agriculture in the United States.
1130. The climate of the United States must necessarily vary in its different parts, In the N.E. the winters are very cold, and the summers hot, changing as you proceed southward. In the S. E., and along the gulf of Mexico, the summers are very hot, and the winters mild and pleasant. Among the mountains it is cold towards the N., and temperate in the§, Beyond the mountains, in the rich valleys of Ohio, Mississippi, and Missouri, the climate is temperate and delightful, till we approach the rocky mouu- tains, when it is subject to extremes, the winters being very cold. The climate must be chilled among mountains constantly covered with snow. West of these mountains, the climate changes, until we reach the shores of the Pacific Ocean, where it resembles that of the western parts of Europe. The prevailing winds are from the west, and as they pass over a wide expanse of water, they cool the air in summer, and in winter deluge the country with frequent rain.
1131. The seasons generally correspond with those in Europe, but not with the equality to be expected on a continent, as eyen during the summer heats single days will occur which require the warmth of a fire.‘The latitude of Labrador corresponds with that of
jos L
cthola, and t Gockho 1; 4 aiely cere 1132, The sui pth astern patt hays all qumner0Us bays a jel and sal y i outlets of 1 ularly the case ioenbly rich and raountainous dist ant 1200 miles 1 {gown as the All oyesents 4 SUrtact the mountains OF 1198,‘The soll often on the east tines a yellowis are considerable and sometimes en the ull is also gel vbeats but the p the surface there 1194, The lan been purchased native savages afterwards accor 1135, The mode of country, which six hundred and| quarters, The cot miles square, in s0 to south, and the 1 marked numerical a period of which teenth section, W and the maintena support of seming No government| quarter sections, favorable situatio higher,‘The Jot per acre; one.fou years; at which ti advances are fort quarters, he repai quarters, and recei he pays all; this by Sections thus sold ¢ {opublic ingection landofive, who are 1136, The pr sigh occupation Ml about ten year ered the midd part of the “an thirty miles
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Book L. AGRICULTURE IN NORTH AMERICA. 185
Stockholm, and that of Canada with France, but the temperature of those places is widely different.
1132. The surface of the country in the United States presents every variety. The north-eastern part on the coast is broken and hilly; and is remarkably indented with numerous bays and inlets, Towards the S., and along the gulf of Mexico, the land is level and sandy, interspersed with many swamps, and numerous islands and inlets. At the outlets of many of the rivers, there is a large portion of alluvial land, which is par- ticularly the case along the Mississippi. Beyond the head of tide-waters, there is a tolerably rich and agreeably uneven country, which extends to the mountains. The mountainous district, on the Atlantic side of the country, is about 150 miles in breadth, and 1200 miles in length. It extends in large ridges, from N.E. to S.W., and is known as the Allegany mountains. Beyond these the great valley of the Mississippi presents a surface of the finest land in the world. To the westward of this valley are the mountains of Louisiana, and beyond these the bold shores of the Pacific ocean.
1138. The soil of the United States, though of various descriptions, is generally fertile; often on the east of the Blue Mountains, in Virginia, arich, brown, loamy earth; some- times a yellowish clay, which becomes more and more sandy towards the sea. There are considerable marshes and salt-meadows, sandy barrens producing only a few pines, and sometimes entirely destitute of wood. On the west of the Apulachian mountains, the soil is also generally excellent; and in Kentucky some spots are deemed too rich for wheat; but the product may amount to sixty bushels per acre. About six feet below the surface there is commonly a bed of limestone.
1134. The landed property of the United States is almost universally freehold, having been purchased or conquered by the different states or the general government from the native savages; and these, either lotted out to the conquering army, or reserved and sold afterwards according to the demand.
1135. The mode of dividing and selling lands in the United States is thus described by Birkbeck.“ The tract of country, which is to be disposed of, is surveyed, and laid out in sections of a mile square, containing six hundred and forty acres, and these are subdivided into quarters, and, in particular situations, half quarters. The country is also laid out in counties of about twenty miles square, and townships of six miles square, in some instances, and in others eight.‘The townships are numbered in ranges, from north to south, and the ranges are numbered from west to east; and, lastly, the sections in each township are marked numerically. All these lines are well defined in the woods, by marks on the trees. This done, at a period of which public notice is given, the lands in question are put up to auction, excepting the six- teenth section, which is near the centre, in every township, which is reserved for the support of schools, and the maintenance of the poor. There are also sundry reserves of entire townships, as funds for the support of seminaries on a more extensive scale, and sometimes for other purposes of general interest. No government lands are sold under two dollars per acre; and I believe they are put up at this price in quarter sections, at the auction, and if there be no bidding they pass on. The best lands and most favorable situations are sometimes run up to ten or twelve dollars, and in some late instances much higher. The lots which remain unsold are from that time open to the public, at the price of two dollars per acre; one-fourth to be paid down, and the remaining three-fourths to be paid by instalments in five years; at which time, if the payments are not completed, the lands revert to the state, and the prior advances are forfeited. When a purchaser has made his election of one, or any number of vacant quarters, he repairs to the land-office, pays eighty dollars, or as many times that sum as he purchases quarters, and receives a certificate, which is the basis of the complete title, which will be given him when he pays all; this he may do immediately, and receive eight per cent. interest for prompt payment. The sections thus sold are marked immediately on the general plan, which is always open at the land-office to public inspection, with the letters A. P., z.e.advance paid. There is a receiver and a register at each land-office, who are checks on each other, and are remunerated by a per centage on the receipts.”
1136. The price of land, though low when not cleared, rises rapidly in value after a very slight occupation and improvement. Instances are frequent of a rise of 1000 per cent. in about ten years. Cobbett, who resided in 1817, in Long Island, which may be con- sidered the middle climate of the United States, gives the price of a cultivated farm in that part of the country,‘ A farm, on this island,” he says,‘‘ any where not nearer than thirty miles off, and not more distant than sixty miles from New York, with a good farm-house, barn, stables, sheds, and styes; the land fenced into fields with posts and rails, the weod-land being in the proportion of one to ten of the arable land, and there being on the farm a pretty good orchard; such a farm, if the land be ina good state, and of an average quality, is worth sixty dollars an acre, or thirteen pounds sterling; of course, a farm of a hundred acres would cost 13002. The rich lands on the necks and bays, where there are meadows, and surprisingly productive orchards, and where there is water carriage, are worth, in some cases, three times this price. But, what I have said will be sufficient to enable the reader to form a pretty correct judgment on the subject. In New Jersey, in Pennsylvania, every where the price differs with the circumstances of water-carriage, quality of land, and distance from market.— When I say a good farm- house, I mean a house a great deal better than the general run of farm-houses in Eng- land; more neatly furnished on the inside; more in a parlour sort of style; though round about the house, things do not look sv neat and tight as in England.”
1137. The agriculture of the United States may be considered as entirely European, and chiefly British. Not only is the climate better adapted for the British agriculture, but the great majority of the inhabitants are of British origin. To enter into details of the products and processes of North American agriculture would therefore be super- Auous in a work prigcipally devoted to British agriculture. All we shall attempt is, to
186 HISTORY OF AGRICULTURE. Parr I.
notice some of the leading peculiarities of North American agriculture, as resulting from national, political and civil circumstances.
1138. The natural circumstances of lands not under culture, chiefly affect the com- mencement of farming operations. In general, the lands purchased by settlers are underwood, which must be felled or burned, and the roots grubbed up; a laborious operation, which, however, leaves the soil in so rich a state, that it will bear heavy crops of grain, potatoes, and tobacco, with very little culture, and no manure for several years, Sometimes they are under grass, or partially covered with brushwood, in which the operation of clearing is easier. In either case, the occupier has to drain, where neces- sary; enclose with a ring fence, if he wishes to be compact, to lay out and make the farm road, and to build a house and farmery. The latter he constructs of timber, sometimes plastered with neatness and taste, as in England,(fig. 190.) but generally
190
=,
with logs and mud, as in Poland and Russia.(fig. 191.) With timber also, he ge- nerally forms his fences, though thorn and other live hedges are planted in some of the earlier cultivated districts.
1139. The usual practice of settlers with capital, may be very well exemplified in the case of Birkbeck, This gentleman having purchased an estate of 1440 acres, in the Illinois, and fixed on that part of it which he intended as his future residence and farm.“ The first act was building a cabin, about two hundred yards from the spot where the house was to stand. This cabin is built of round straight logs, about a foot in diameter, lying upon each other, and notched in at| the corners, forming a room eighteen feet long, by sixteen; the intervals between©<=>“2 the logs‘ chuncked,’ that is, filled in with slips of wood; and‘ mudded,’ that is, daubed with a plaster of mud: a spacious chimney, built also of logs, stands like a bastion at one end: the roof is well covered with four hundred clap boards of cleft oak, very much like the pales used in England for fencing parks. A hole is cut through the side, called, very properly, the‘door,(the through)’ for which there is a“ shutter,’ made also of cleft oak, and hung on wooden hinges. All this has been executed by contract, and well executed, for twenty dollars. I have since added ten dollars to the cost, for the luxury of a fipor and ceiling of sawn boards, and it is now a comfortable habitation.”
1140. An evample of a settler who began with capital only sufficient to pay the first instalment of eighty dollars of the price of 160 acres of land is given by the same author, who had the information from the settler himself. Fourteen years ago, he‘‘ unloaded his family under a tree,” on his present estate; where he has now two hundred acres of excellent land, cleared and in good cultivation, capable of pro- ducing from eighty to one hundred bushels of Indian corn per acre. The poor emigrant, having col- lected the eighty dollars, repaired to the land-oftice, and entered his quarter section, then worked his way, without another£ cent’ in his pocket, to the solitary spot, which was to be his future abode, in a two-horse waggon, containing his family and his little all, consisting of a few blankets, a skillet, his rifle, and his axe. Arrived in the spring: after putting up a little log cabin, he proceeded to clear, with intense labor, a plot of ground for Indian corn, which was to be their next year’s support; but for the present, being without means of obtaining a supply of flour, he depended on his gun for subsistence. In pursuit of the game, he was compelled, after his day’s work, to wade through the evening dews, up to the waist, in long grass or bushes, and returning, finds nothing to lie on but a bear’s skin on the cold ground, exposed to every blast through the sides, and every shower through the open roof of his wretched dwelling, which he does not even attempt to close, till the approach of winter, and often not then. Under these distresses of extreme toil and exposure, debarred from every comfort, many valuable lives have sunk, which have been charged to the climate. The individual whose case is here included, had to carry the little grain he could procure twelve miles to be ground, and remembers once seeing at the mill, a man who had brought his corn sixty miles, and was compelled to wait three days for his turn. Such are the difficulties which these pioneers have to encounter; but they diminish as settlements approach each other, and are only heard of by their successors.
1141. The political circumstances of the United States affect the agriculturist both as to the cost of production and the value of produce. It is evident that the want of popula- tion must render the price of labor high, and the produce of land low. In this Parkinson, Birkbeck, Cobbett, and all who have written on the agriculture of America, agree.‘* The simple produce of the soil,’’ Birkbeck observes,‘that is to say, grain, is cheap in America; but every other article of necessity and conyenience is dear in comparison. Every service performed for one man by another must be purchased at a high rate, much higher than in England.”? The cheapness of land affords the posses- sion of independence and comfort at so easy arate, that strong inducements of profit are required to detain men in the condition of servitude, Hence the high price of all
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pom 206 gal hence abot; spulation rase ye bul moder yf this wall ol h bh pi ir nt of produ ol capital Bs, may be p ape twenty i i is ines gery short time 1142, The apr Trance, The Br peat. ins ss on the banks of t cnuntry 15 ventral uplands, are fou! son nin Pennsyl cone of the most vine is indigenou attempted, and climate are wntay of the country, Veray, in Indie verry, the cottor Sugar is procur especially the sa it by letting it: The sugar obt 1148. Of in general, go number of the to do, is to| tame, as in the climate, a pals to attem as abhorrent t the state of th of any kind: in the markets would have gir than taste his. dlomestic manuf of America the When Ameries breezes, they them here, as in 1144, Asriey capital, who hay the case, for Wal ieording to al te use ofthe ay ls no idea of b {own to every the versatility of ‘these operatig ‘amer, and eye m4 buld a ous = an pigs, ine , labeland, S00 in mg foun becomes Ses a He Teekoneg at ct Tenilere
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Book I. AGRICULTURE IN NORTH AMERICA. 187
commodities, not simply agricultural; of the labor of mechanics of every description; and hence also the want of local markets for grain, because where three-fourths of the population raise their own grain,(which is the calculation,) the remaining fourth will use but a moderate proportion of the spare produce. The low rate of land and taxes, and this want of home markets, is the reason why the American farmer, notwithstanding the high price of labor, affords his grain so cheap for exportation. Notwithstanding the low rate of produce, the profits of the American farmers are high, on account of the small capital required. With 2000/., Birkbeck calculates that a farm of 640 acres in the Illinois, may be purchased, stocked, and cultivated, so as to return, after deducting all expences, twenty-two per cent., besides the value of the improvements made on the land, that is, its increased value, which, as has already been stated,(1138.) is incredible in a very short time.
1142. The agricultural products of the United States include all those of Britain and France. The British grains, herbage, plants, and fruits grown in every district. What appears at first sight very remarkable, is, that in America the native pastures,(excepting on the banks of the rivers,) consist entirely of annuals; and that is the reason why the country is generally bare and black in winter; but perennial grasses when sown in the uplands, are found to thrive in many situations. The greatest quantity of wheat is grown in Pennsylvania and New England. Maize ripens in all the districts, excepting some of the most northerly. Rice is cultivated in Virginia, and on the Ohio; and the vine is indigenous in these and other provinces, though its culture has not yet been much attempted, and some French cultivators are of opinion, that the American soil and climate are unfavorable. This, however, is not likely to be the case, it being a native of the country. The government have established a Swiss colony for its culture, at Vevay, in Indiana, and another in Louisiana, for the culture of the olive.~The mul- berry, the cotton, and the sugar-cane, are cultivated in Virginia, but not extensively, Sugar is procured plentifully in the woody districts by tapping different species of acer, especially the saccharinuwm in spring; boiling the juice till it thickens, and then granulating it by letting it stand and drain in a tub, the bottom of which is pierced with small holes. The sugar obtained does little more than pay for the lator.
1143. Of the live stock of the United States the breed of horses of English extraction is, in general, good, as are the cows and hogs. In many cases there is no limit to the number of these that may be grazed in the unoccupied woods: all that the farmer has to do, is to keep them from bears and wolves, at particular seasons, and keep them tame, as in Russia and Switzerland, by giving them salt. Sheep are totally unfit for the climate, and state of the country, though a number of proprietors have been at great pains to attempt introducing the Merinos..“ Mutton,” Birkbeck observes,‘‘ is almost as abhorrent to an American palate, or fancy, as the flesh of swine to an Israelite; and the state of the manufactures does not give great encouragement to the growth of wool of any kind;—of Merino wool less, perhaps, than any other. Mutton is sold in the markets of Philadelphia at about half the price of beef; and the Kentuckian, who would have given a thousand dollars for a Merino ram, would dine upon dry bread rather than taste his own mutton. A few sheep on every farm, to supply coarse wool for domestic manufacture, seems to be all that ought at present to be attempted in any part of America that I have yet seen. Deep woods are not the proper abodes of sheep. When America shall have cleared away her forests, and opened her uplands to the breezes, they will soon be covered with fine turf, and flocks will be seen ranging over them here, as in other parts of the world.
1144. Agricultural operations in America are skilfully performed by the farmers of capital, who have all the best implements of Europe. By the poorest settlers this is not the case, for want of stock; and by the native American farmers, from indolence, which, according to all accounts, is their general defect. An American laborer is most expert at the use of the axe and the scythe; the spade he handles in a very awkward manner, and has no idea of banking, hedging, clipping, or cutting hedges, and many other operations known to every laborer in a highly cultivated and enclosed country like Britain. But the versatility of talent of an American laborer amply compensates for his inexperience in these operations, and is more useful in his circumstances. In handling the saw, the hammer, and even the trowel, the British laborer has no chance withhim. Most of them can build a house, mend a plough or waggon, and even the harness, and kill and dress sheep and pigs.
1145. Field labors in America require to be performed with much greater expedition than in England. The winter is long and severe, and the transition to spring is sudden; this season in many provinces only lasts a few weeks, when summer commences, and the ground becomes too hard and dry for the operations of tillage. The operations of seed- time must therefore be performed with the greatest rapidity. The climate of New York may be reckoned one of the best in N. America. There the ground is covered with snow, or rendered black by frost in the beginning of December, and continues without
I B==—
ioe HISTORY OF AGRICULTURE. Parr 1.
a speck of green till May. Ploughing generally begins in the last week of April; oats are sown in that month; and maize and potatoes about the middle of May. By the end of May the wheat and rye which has stood the winter, the spring-sown corn, the grass, and the fruit trees appear as forward as they are at the same period in England, There is very little rain during June, July, and August. Cherries ripen in the last week of June; by the middle of July the harvest of wheat, rye, oats, and barley, is half over; pears ripen in the beginning of August; maize, (fig: 192.) rye, and wheat, are sown during the whole of October; is cut in the first week of September; peaches and apples are ripe by the end of the month; the general crop of potatoes are dug up in the beginning of November; and also turnips and other roots taken up and housed; a good deal of rain falls in September, October, and November, and severe frosts commence in the first week of December, and as above stated continue till the last week of April. Such is the agricultural year in the country of New York. Live stock requires particular attention during the long winter; and unless a good stock of Swedish turnip, carrot, or other roots has been laid up for them, they will generally be found in avery wretched state in April and May.
1146. The civil circumstances of the United States are unfavorable to the domestic enjoy- ments of a British farmer emigrating thither. Many privations must be suffered at first, and some probably for one or two generations to come. The want of society seems an obvious drawback; but this Birkbeck has shewn is not so great as might be imagined. When an emigrant settles among American farmers, he will generally find them a lazy, ignorant people, priding themselves in their freedom, and making little use of their privileges; but when he setties among other emigrants, he meets at least with people who have seen a good deal of the world and of life; and who display often great energy of cha- racter.‘These cannot be considered as uninteresting, whatever may be their circumstances as to fortune; and when there is something like a parity in this respect and in intellectual circumstances, the social bond will be complete. It must be considered that one powerfully-operating circumstance must exist, whatever be the difference of circumstances or intellect; and that is, an agreement in politics both as to the country left and that adopted. For the rest, the want of society may be to a certain degree supplied by the press; there being a regular post in every part of the United States, and numerous American and European newspapers and periodical works circulated there. Birkbeck mentions that the Edinburgh and Quarterly Review, the Monthly and other magazines, and the London newspapers are as regularly read by him at the prairie in Illinois, as they were at his farm of Wanborogh in Suffolk, and that all the difference is, that they arrive at the prairie three months later than they did at his British residence. We’have seen 193 sketches of the houses erected by this gentleman, and some others who have settled around him, and we consider them as by no means deficient either in apparent com- modiousness or effect. They re- mind us of some of the best houses of Switzerland and Nor- way:(fig. 138.)
1147. The want of domestic servants is a considerable drawback: in most parts of the United States;—£— E=e al§ a but especially in the new settle- pe ments, Families who remove into Western America, Birkbeck observes, should bring with them the power and the inclination to dispense, in a great degree, with servants. To be easy and comfortable there, a man should know how to wait upon himself, and practise it. In other respects, this gentleman and his friends hope to live on their estates at the prairie,“‘ much as they were accustomed to live in England.”
1148. dsa country for a British farmer to emigrate to, we consider the United States as superior to every other, in two respects. First on account of its form of government: by which property is secure,— personal liberty greater than any where else, consistently with public safety; and both maintained at less expence than under any government in
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Boox I. AGRICULTURE IN NORTH AMERICA. 189
the world. Secondly, on account of the stock of people being generally British, and speaking the same language.‘The only objection we have to America is the climate, the long and severe winter, and the rapid and hot spring and summer. Equally good Jand, and nearly as cheap, may be had in the south of Russia and in Poland, as in America; but who that knows any thing of the governments of those countries, or even of Germany and France, would voluntarily put themselves in their power while the United States are accessible? Who would live in a country of tyrannic nobles, often very deficient of moral principle; and of a peasantry little better than hogs, and not so well fed and lodged as that animal is in England? Who would live in a country of passports, of spies, and swarming with beggarly gentry, wohlgeborne, hochwohlgeborne, edilgeborne, hochedelgeborne,&c.; and where exists that precious article hochjagt; being a description of game which no man may pursue under the rank of prince? Who would. emigrate to Hanover if he could settle in France; and who would go there if he could accomplish the voyage to the United States?
1149. Van Diemans Land and New Holland, next to the United States, are perhaps the most desirable places to go to; and they are superior to America in climate; but no man is safe under a delegated and distant administration of government; and, besides, if a man is to leave his country, it seems preferable to emancipate himself at once from all the good. and evil of the old world state of society and government, and plunge into a new and superior order of things. No person, however, should determine on so important a step without making himself, as far as practicable, master of all that has been said, written, or done on both sides of the question. For this purpose he may consult what has been published by Parkinson, England, Fearon, Wild, Birkbeck, Cobbett, Mellish, Helme, Dwight, Hodgson, and a variety of others.
Sursecr. 2. Present State of Agriculture in Mevico. w o
1150. The climate of this extensive and recently revolutionized country is singularly diversified, between the tropical seasons and rains, and the temperature of the southern and even middle countries of Europe.‘The maritime districts of Mexico are hot and unhealthy, so as to occasion much perspiration even in January; the inland mountains, on the other hand, present snow and ice in the dog-days. In other inland provinces, how- ever, the climate is mild and benign, with some snow of short duration in winter; but no artificial;warmth is necessary, and animals sleep all the year under the open sky. From April to September there are plentiful rains, generally after noon; hail storms are not unknown; thunder is frequent; and earthquakes and volcanoes occasionally occur. The climate of the capital, in lat. 19° 25’, differs much from that of the parts of Asia and Africa under the same parallel; which difference seems to arise chiefly from the superior height of the ground. Humboldt found, that the vale of Mexico is about 6960 feet above the level of the sea, and that even the inland plains are generally as high as Mount Vesuvius, or about 3600 feet. This superior elevation tempers the climate with a greater degree of cold; upon the whole, therefore, it cannot be regarded as un- healthy.
1151. The surface of the country is diversified by grand ridges of mountains, numerous volcanoes, some of which are covered with perpetual snow, cataracts worthy of the pencil of Rosa, delicious vales, fertile plains, picturesque lakes and rivers, romantic cities and villages, and an union of the trees and vegetables of Europe and America.
1152. The soil is often deep clay, surprisingly fertile and requiring no manure except irrigation. In some places it is boggy or composed of a soft black earth, and there are barren sands and stony soils in the elevated regions.
1153. Of the agriculture of Mexico some account is given by the abbe Clavigero and the baron de Humboldt. According to the first author, agriculture was from time immemorial exercised by the Mexicans, and almost all the people of Anahuac. The Toltecan nation employed themselves diligently in it, and taught it to the Thechemecan hunters, With respect to the Mexicans, we know that during the whole of their pere- grination, from their native country Atzlan, unto the lake where they founded Mexico, they cultivated the earth in all those places where they made any considerable stop, and lived upon the produce of their labor. When they were brought under subjection to the Colluan and Tepanecan nations, and confined to the miserable little islands on the lake, they ceased for some years to cultivate the land, because they had none, until necessity and industry together, taught them to form moveable fields and gardens, which floated on the waters of the lake,
1154. The method of forming floating fields, and which they still practise, is extremely simple. They plait and twist willows, and: roots of marsh plants, or other materials, together, which are light, but capable of supporting the earth of the field firmly united. Upon this foundation they lay the light bushes which float on the lake, and over all, the mud and dirt which they draw up from the bottom of the same lake. Their regular figure is quadrangular; their length and breadth various; but in general, they are about eight perches long, and not more than three in.breadth, and have less than@ foot of elevation above the surface of the water. These were the first fields which the Mexicans owned
ee
190 HISTORY. OF AGRICULTURE. Parr I.
after the foundation of Mexico; there they first cultivated the maize, great pepper, and other plants, necessary for their support. In progress of time as those fields grew numerous from the industry of those people, there were among them gardens of flowers and odoriferous plants, which were employed in the worship of their gods, and served for the recreation of the nobles. At present they cultivate flowers, and every sort of garden herbs upon them. Every day‘of the year, at sun-rise, innumerable vessels lo: with various kinds of flowers and herbs, which are cultivated in those fields and gardens, are seen arriving by the canal, at the great market-place of that capital. All plants thrive there surprisingly; the mud of the lake is an extremely fertile soil, and requires no water from the clouds. In the largest islands there is commonly a little tree, and even a little hut to shelter the cultivator, and defend him from rain or the sun. When the owner of an island, or the chinampa, as he is usually called, wishes to change his situa- tion, to remove froma disagreeable neighbor, or to come nearer to his own family, he gets into his little vessel, and by his own strength alone, if the garden is small, or with the assistance of others, if it is large, he tows it after him, and conducts it wherever he pleases with the little tree and hut upon it. That part of the lake where those floating fields are, is a place of infinite recreation, where the senses receive the highest possible gratification. These floating fields, Humboldt informs us, still exist: they are of two sorts; the one mobile and blown here and there by the winds, and the others fixed and united to the shore. The former alone merit the appellation of floating, and they are diminishing day by day. He assigns to them the same origin as the abbe Clavigero; but thinks it probable that nature also may have suggested the first idea, and gives instances of small pieces of the surface, netted with roots and covered with plants, being detached from the marshy shores of other American lakes, and floating about in the water. The bean, pea, apple, artichoke, cauliflowers, and a great variety of other culinary plants are cultivated on them.
1155. A floating island, in a small lake in Haverhill, in New England, is mentioned by Dr. Dwight. It has, he was informed, immemorially floated from one shore to another, whenever it was impelled by a violent wind. Lately it has adhered for a considerable time to a single spot; and may perhaps be so firmly fixed on the shelving bottom, as to move no more hereafter, Several trees and shrubs grow on its surface, and it is covered by a fresh verdure.(Travels,&c. vol. i. p. 871.)
1156. Having neither ploughs nor oxen, nor any other animals proper to be employed in the culture of the earth, the Mexicans, when they had shaken off'the Tepanecan yoke, supplied the want of them by labor and other more simple instruments. To hoe and dig the ground they made use of the coatl, or coa, which is an instrument made of copper, with a wooden handle, but different from a spade or mattock. They made use of an axe to cut trees, which was also made of copper, and was of the same form with those of modern times, except that we put the handle in the eye of the axe, whereas they put the axe into an eye of the handle. They had several other instruments of agriculture; but the negligence of ancient writers on this subject has not left in our power to attempt their description.
1157. They irrigated their fields with the water of rivers and small torrents which came from the moun- tains, raising dams to collect them, and forming canals to conduct them. Lands which were high, or on the declivity of mountains, were not sown every year, but allowed to lie fallow until they were over-tun with bushes, which they burned, to repair by their ashes the salt which rains had washed away. They surrounded their fields with stone enclosures, or hedges made of the penguin, which make an excellent fence; and in the month Panquetzaliztli, which began on the third of December, they were repaired if necessary.
1158. In sowing of maize, the method they observed, and which they still practise in some places, is this: the sower makes a small hole in the earth with a stick, or drill probably, the point of which is hardened by fire; into this hole he drops one or two grains of maize from a basket which hangs from his shoulder and covers them with a little earth by means of his foot; he then passes forward to a certain distance, which is greater or less according to the quality of the soil, opens another hole, and continues so in a straight line unto the end of the field; from thence he returns, forming another line parallel to the first. The rows of plants by these means are as straight as if a line was made use of, and at as equal distances from each other as if the spaces between were measured. This method of sowing, which is now used by a few of the Indians only, though more slow, is, however, of some advantage, as they can more ex- actly proportion the quantity of seed to the strength of the soil; besides that there is almost none of the seed lost which is sown: in consequence of this, the crops of the fields which are cultivated in that manner are usually more plentiful. When the maize springs up to a certain height, they cover the foot of the plant round with earth, that it may be better nourished, and more able to withstand sudden gusts of wind.
1159. In the labors of the field the men were assisted by the women. dig and hoe the ground, to sow, to heap the earth about the plants. to strip off the leaves from the ears, and to clear the grain 5
of both.
1160. They had places like farm-yards, where they stripped off the leaves from the ears them, and granaries to preserve the grain. Their granaries were built in a square form of wood. They made use of the ojameth for this purpose, which is slender branches, and a thin smooth bark; the wood of it is extremely pliant, and difficult to break orrot. These granaries were formed by placing the round and equal trunks of the ojameth in a square, one upon the other, without any labor except that of a small notch towards their extremities, to adjust and unite them so perfectly as not to suffer any passage to the light. When the structure was raised to a sufficient height, they covered it with another set of Cross-beams, and over these the roof was laid to defend the grain from rains. Those granaries had no other door or outlet than two windows, one below which was small, and another somewhat wider above. Some of them were so large as to contain five or six thousand, or sometimes more fanegas of maize. There are some of this sort of granaries to be met with ina few places at a distance from the capital, and amongst them some so very ancient, that they appear to have been built before the conquest; and, according to information had from persons of intelligence, they preserve the grain better than those which are constructed by the Europeans.
1161. A little tower of wood, branches and mats they commonly erected close to fields which were im which a man defended from the sun and rain, kept watch, and drove away the birds which c flocks to consume the young grain. Those little towers are still made use of even in the fie Spaniards on account of the excessive number of birds.
1162. The woods which supplied them with fuel to burn, timber to build, and game for the diversion of the king, were carefully preserved. The woods of king Montezuma were extensive, and the laws of king Nezahualcojotl concerning the cutting of them particular and severe in their penalties. Tt would be of advantage to that kingdom, says Clavigero, that those laws were still in force, or at least that there was not so much liberty granted in cutting without an obligation to plant a certain number of trees 3 as Many people, preferring their private interest and convenience to the public welfare, destroy the wood in order to enlarge their possessions.
It was the business of the men to , and to reap; to the women it belonged to weed and to shell it was the employment
, and shelled. » and generally a very lofty tree, with but a few
sown, ame in Ids of the
1163. The breeding of animals was not neglected by the Mexicans: though there were no sheep, they bred up innumerable species of animals unknown in Europe. Bullock ( Travels, 1824) informs us, that they are very curious in rearing and feeding swine; and that an essential requisite in a Mexican swineherd is an agreeable voice; in order that he may sing or charm the animals into peace when they quarrel and fight, and lull them
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Boox I. AGRICULTURE IN NORTH AMERICA. 191
to sleep at proper times, to promote their fatting. Wind and sounds of every kind have been long known to have a powerful effect on this genus of animals. Private persons brought up techichis, quadrupeds, similar to little dogs;_ turkeys, quails, geese, ducks, and other kinds of fowl. In the territories of the lords were bred fish, deer, rabbits, and a variety of birds; and at the royal residences, almost all the species of quadrupeds, and winged animals of those countries, and a prodigious number of water animals and. reptiles. We may say that in this kind of magnificence Montezuma II. surpassed all. the kings of the world, and that there never has been a nation equal in skill to the Mexicans in the care of so many different species of animals, which had so much know- ledge of their dispositions, of the food which was most proper for each, and of all the means necessary for their preservation and encrease.
1164. The Mexican cochineal, so greatly valued in Europe on account of its dyes of scarlet and crimson, demands a great deal more care from the breeder than is necessary for the silkworm. Rain, cold, and strong winds destroy it. Birds, mice, and worms, persecute it furiously, and devour it; hence it is neces- sary to keep the rows of opuntia, or nopal, where those insects are bred, always clean; to attend constantly to drive away the birds, which are destructive to them; to make nests of hay for them among the opuntia, by the juice of which they are nourished; and when the season of rain approaches, to raise them with a part of the plants, and guard them in houses. Before the females are delivered they cast their skin, to obtain which spoil, the breeders make use of the tail of the rabbit, brushing most gently with it that they may not detach the insects from the plants, or do them any hurt. On every lobe they make three nests, and in every nest they lay about fifteen cochineals. Every year they make three gatherings, reserv- ing, however, each time, a certain number for the future generation; but the last gathering is least valued, the cochineals being smaller then, and mixed with the prickles of the opuntia. They kill the cochineal most commonly with hot water. On the manner of drying it afterwards the quality of the colour which is obtained from it chiefly depends. The best is that which is dried in the sun. Some dry it in the comalti, or pan, in which they bake their bread of maize, and others in the temaxcallz, a sort of oven.(Clavigero, vol.i. p. 357 to 381.)
1165. The fruits of Mevico are very numerous, the banana,(fig. 194.) and granadilla, (fig. 195.) are very common. The bread-fruit and cocoa are extensively cultivated;
and a number of sorts of anona, or custard apple,(fig. 196.), and especially the cheri- moyer(d. tripetala}, which is much esteemed. In short, all the fruits of Europe and most of those of both Indies are to be found.in the gardens of the nobles and the priests.
Sussect. 3. Present State of Agriculture in the British Possessions of North America.
1166. The principal British provinces ir America are Canada, New Brunswick, Nova Scotia, Cape Breton, and the adjacent islands of Newfound- land and the Bermudas.
1167. Canada is an extensive country, and the only British province in which agriculture is generally pursued. The climate of this country is extremely irregular; in July and August, the heat is often 96°, while in winter the mercury freezes. The ground is covered with snow from November till May, when it thaws suddenly, and vegetation is instantaneous. The surface of|\/ the country is generally mountainous and woody; but there are savannas, and plains of great beauty towards Upper Canada.
1168. The soil consists principally of a loose dark-coloured earth, ten or twelve inches deep, lying on a bed of cold clay. This thin-mould, however, is very fertile, and yields plentiful
—_- emma=‘~ SSS ae tah Bi————
192 HISTORY OF AGRICULTURE. Parr I.
crops, although it is worked every year by the French Canadians, without being ever manured. The manures chiefly used, since the practice of manuring has been in- troduced, by those who are the best farmers, are marle and gypsum, the former is found in great quantities in many places along the shores of the river St. Lawrence.
1169. With respect to the products of Canada, the low country is peculiarly adapted to the growth of small grain. Tobacco also thrives well in it, but the culture is neglected, except in private use; and more than half of what is used is imported. The snuff pro- duced from the Canadian tobacco is held in great estimation. Culinary vegetables arrive at great perfection in Canada, which is also the case with most of the European fruits. The currants, gooseberries, and raspberries are very fine; the latter are indigenous, and are found very abundantly in the woods. A kind of vine is also indigenous; but the grapes produced by it in its uncultivated state are very poor and sour, and not much larger than fine currants. In the forest there is a great variety of trees; such as beech, oak, elm, ash, pine, sycamore, chestnut, and walnut; and the sugar maple-tree is found in almost every part of the country. Of this tree there are two kinds; the one called the swamp maple, being generally found on low lands, and the other, the mountain or curled maple, from its growing upon high dry ground, and from the grain of its wood being beauti- fully variegated with little stripes and curls. The former yields more sap than the latter, but its sap affords less sugar. A pound of sugar is frequently procured from two or three gallons of the sap of the curled maple, whereas no more than the same quantity can be had from six or seven gallons of that of the swamp tree. The maple sugar is the only sort of raw sugar used in the country parts of Canada, and it is also very generally used in the towns.
1170. New Brunswick and Nova Scotia are intensely cold countries, and only partially civilised. The vale of St. John’s river is the principal scene of cultivation in New Brunswick. The upland parts of the country are chiefly covered with forests of pines, hemlock, and spruce fir, beech, birch, maple, and some oak. The pines on St. John’s river are the largest in British America, and afford a considerable supply of masts for the royal navy. Nova Scotia produces little grain; supplies being sent from England. The soil is thin and barren, excepting on the banks of the river, where it produces grass, hemp, and flax.
1171. In the island of Cape Breton the soil is mere moss, and has been found unfit for agriculture. Newfoundland seems to be rather hilly than mountainous, with woods of birch, pine, and fir, numerous ponds and morasses with some dry barrens. The chief produce of these islands, as well as the other British possessions in America, is furs and skins; and the same remark will apply to the Bermudas and other unconquered countries, which need not be further noticed.
Sussect. 4. Present State of Agriculture in the West India Islands.
1172. The principal West India islands are Cuba, St. Domingo, Jamaica, and Porto Rico; and next the Windward islands, Trinidad, the Leeward islands of the Spanish, and the Bahamas.
1173. Cuba is an extensive and naturally fertile island, but from the indolence of the Spaniards not above a hundredth part of it is eleared and cultivated. Like most islands in the West Indies, it is subject to storms, but the climate is, upon the whole, healthy, and even temperate; for though in this latitude there is no winter, the air is refreshed with rains and cooling breezes. The rainy months are July and August; the rest of the yearis hot. A chain of mountains extends the whole length of the island from east to west, and divides it into two parts; but the land near the sea is in general level, and flooded in the rainy season.‘The soil is equal in fertility to any in America, producing ginger, long pepper, and other spices; aloes, mastich, cassia fistula, manioc, maize,—. cocoa,&c. Tobacco is one of its principal productions, and\ i it is supposed to have the most delicate flavor of any produced Sk in the new world. The cultivation of sugar has lately ait NS
a
introduced; but the indolence of the inhabitants renders it in every respect much less productive than it otherwise might be. The quantity of coffee is inconsiderable.‘The chief, plantations are in the plains, and are cultivated by about\\ 25,000 slaves. Among the trees are oaks, firs, palms, cotton trees, ebony, and mahogany,(Swietenia Mahogani, Jig: 197.) In 1763 bees were introduced by some emigrants from Florida, and they multiplied so much in the hollows of old trees, that they soon obtained honey z= enough for their annual consumption. In 1777 they Meu! exported honey to the amount of 715,000 pounds. The
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Boox I. AGRICULTURE IN NORTH AMERICA. 193
island abounds with mules, horses, sheep, wild boars, hogs, and fine black cattle. The horned cattle have increased so much that the forests are filled with droves of them, which run wild, and are hunted and killed for their hides and tallow. The chief birds are paroquets, turtle doves, and partridges; water-fow] are numerous; and on the coast turtles are abundant; mullets and shads are the principal fish.
1174, Jamaica has been in possession of the English since the middle of the seventeenth century. The climate is extremely hot throughout the year, though mitigated by various causes. The surface of the country is very irregular: a ridge of mountains from east to west divides it into two parts. At a small distance from the shore it rises into hills with gentle acclivity, which are separated from each other by spacious vales and romantic in- equalities. On the southern side of the island there are precipices and inaccessible cliffs, amidst which are vast plains, covered with extensive cane fields. To the inequalities of surface that distinguish this island it is owing, that, although the soil in many parts of the island is deep and very fertile, yet the productive land is but of small extent, in pro- portion to the whole.‘That which is actually cultivated is of a middling quality, and requires labor and manure to make it yield liberally.
i175. Landed property in Jamaica is in general freehold without manorial rights, and is chiefly in the enjoyment of individuals, though there is some government and corporation territory. Estates are generally small, few exceeding 1000 acres: formerly they were managed by resident proprietors; but at present, and for some time past, by far the greater number have been managed by agents or attorneys, who are represented by Roughley as a selfish, grasping, unprincipled set of men,‘‘ too ignorant to be planters, and too ostentatious, proud, and supine, to contribute to the good of their constituents.”* (Planter’s Guide, p.8.) They often contrive, by getting estates in debt and mortgaging them, ultimately to become the proprietors themselves. Some proprietors are so over-careful as to have what is called a planting attorney, and a mercantile attorney, the latter for the sale of produce, and the purchase of im- ported stores for the slaves. Besides these there are travelling agents who visit different estates, and make annual or biennial voyages to Europe to the proprictors; an overseer for each estate, who has both free white men and slaves under him; a head driver, a slave; the head cattle and mule man; the head boiler or manufacturer of sugar; head carpenters, coopers, masons, coppersmiths, and watchmen; a hot-house or hospital doctor or doctress midwife; the great gang of able men and women; the second gang of rather weakly habits; and the third, or weeding gang, composed of children; cattle and mule boys, watchmen, invalids, and superannuated, and young children and infants. The qualifications, duties, and treatment of all these classes are discussed at length by Roughley, who gives a picture of culture and management very different from any thing belonging to the management of landed property, or the culture of farm lands in Britain.
1176. The overseer, who is generally known by his hat and pipe(fig. 198.), should be a man of intelli- gence, tempered with experience, naturally humane, steadfast in well-devised pursuits, of settled sober habits, not given to keeping indiscriminate company, or suffering his subor- dinate white people to do so, thereby vitiating their manners; presenting a gentleman-like appearance, keeping a regular, well-supplied comfortable table, without profusion, not only for himself and the white people under him, but for the benefit of such sick and convalescent slaves as require salutary and restor. ing nourishment. His business hours will be fully occupied by the concerns of the estate, his leisure ones in the innocent enjoyment of some domestic amuse- ment. He must be kind and courteous to the young men under him, but giving or allowing them no opportunity to treat him with disrespect; attentive and hos- pitable to respectable strangers, cautious and wary how he suffers strollers to tempt his benevolence. He must not capriciously or suddenly discharge his white people (as is very often the case), taking care that no envious or jealous sentiment or idea arises in his mind, if his young men have merit on their side, or are caressed by their superiors. He must keep the slaves strictly to their work, yet not imposing on them unusual hours, or inflicting punishment for every trifling= offence; but when punishment for crimes is necessary, to temper it with pru- dent mercy. He must be attentive to their real wants, not suffering them tod tease him with their trifling complaints, or tamper with him by their arts.=Dut mania promptly satisfy them, by enquiring into their serious snievances. Above all things, he must not en- courage the spirit of Obea in them(which is horrible), or dishearten them by cohabiting with their wives, annulling thereby their domestic felicities. He must not suffer their provision-grounds to be neglected. trespassed on, or ruined, or their houses to be out of repair or uncomfortable; for it very often happens, that well-disposed slaves, by such freedoms taken with their wives, their well-established grounds ruined by thieves or cattle, their domestic quiet and comfort intruded upon, or their houses rendered unhabit- able by storm or casualty, become runaways. Their conduct influences others, till at last the strength of the estate vanishes, the evil becomes notorious, and the plantation, of course, becomes neglected. The Magistrates are then obliged to take this growing evil into serious consideration. Hunting parties are sent out(perhaps with little success) to bring in the fugitives; martial law is at last proclaimed throughout the diseased district; all sorts of people are harassed; public trials are instituted; some of the runaways are never caught; others who are brought in u idergo trial, and are convicted and sentenced to death or transportation for life.(Roughley, 40. 43.)
1177. The head driver is seen carrying with him the emblems of his rank and dignity, a polished staff or wand, with prongy crooks on it to lean on, and a short-handled flexible whip; his ottice combining within itself a power, derived principally from the overseer, of directing all conditions of slaves, relative to the precise work he wishes each gang or mechanic to undergo or execute. The great gang is comprised of the most powerful field negroes, and is always under his charge. These are the Strength with which principally to carry into effect the main work in the field, and manufacture the sugar and rum.‘There are so many points to turn to, so many occasions for his skill, vigilance, steadiness, and trust-worthiness, that the selection of such a man, fit for such a place, requires circumspection, and an intimate knowledge of his talents and capacity. A bad or indifferent head driver scts almost every thing at variance; injures the negroes, and the culture of the land. He is like a cruel blast that pervades ey ery thing, and spares no-~ thing; but when he is well-disposed, intelligent, clever, and active, he is the life and soul of an estate. He very often is an elderly or middle-aged negro, who has long been so employed. If it should be so ordered that a new head driver is requisite to be put in commission, I must beg leave to lay before my readers my pinion of the proper choice of one. Imay err, but hope not irretrievably. He should, in my judgment, be an athletic man; sound and hardy in constitution; of well-earned and reputed good character; of an age, and, if possible, an appearance to carry respect; perhaps about thirty-five years old; clean in his person and apparel; if possible a native or creole of the island, long used to field” work, and marked for us sobriety, readiness, and putting his work well out of his hands. His civility should be predominant,
O
SS"
194 HISTORY OF AGRICULTURE. Parr I.
his patience apparent, his mode of inflicting punishment mild. He should be respectful to white people; suffering no freedoms from those under him, by conversation or trifling puerile conduct. It is rare, in- deed, to find this mass of perfection in a negro; but you obtain a combination of most of these virtues; and, as to petty vices, always inherent in some measure in human nature, they must be looked over, when not too full of evil.‘The junior drivers likewise, if possible, should be men of this description; but having a good master over them in the head driver, they will be induced to behave tolerably.(Roughley, 79. 82.)
1178. The laborers on@ sugar Jamaica estate consist almost entirely of slaves, creoles, natives, or Africans, with some free blacks and men of color or mixed progeny. The overseers are almost always whites, and sometimes also the head drivers.
1179. The buildings required for a sugar plantation are numerous and extensive. Ina centrical situation by a stream or other supply of water,“an extensive set of works, including an overseer’s house, hospital or hot-house, mill-house, large mill-yard, mule stable, trash or fuel house, cooper and carpenter’s shops, boiling and curing houses, a distilling house, tanks, cisterns,&c. should be built and so arranged as all to be seen from the overseer’s house.
1180. The overseers house, it would appear, must be both a comfortable and elegant building. It should be built compact and convenient, not over roomy; and raised sufficiently high from the foundation, with good masonry work, to admit of suitable stores underneath, to keep all the plantation stores and supplies in. Itshould be placed so, that all the works can be seen from it, and not far from the boiling-house. The rooms should be all on the same floor, and closely boarded with seasoned stuff. Each white man should have a small bed-room to himself, with a glazed sash window on hinges, and a shutter to it. The bed-rooms should be eleven feet by nine each, of which five should be in every overseer’s house on a sugar estate, leaving the overseer’s room somewhat larger than the book-keeper’s. A large well-covered piazza, with comfortable glazed windows,(to risé¢ and fall occasionally,) will answer all the purpose of a dining and breakfast hall, and for walking in, Large centre halls in such houses are of very little use, take up a great deal of room, are very expensive, and make the house large, without any real convenience. A small back piazza, made comfortable by moving blinds with stops, would be proper for the servants. I think every dwelling-house on a plantation should have a small fire-place in it, with a well-raised chimney, for fire occasionally in damp weather to be made in; it will be wholesome and preservative. The fire-place should be in an extreme angle of the dining piazza, and the overseer’s cooking-room, washing- room,&c., should be apart from the house, though not far off, conveniently fitted up, and of moderate size. The little appendages of a hog-stye, fowl-house,&c., to raise small stock in, are easily built at a small expense.(Jb. 184, 185.)
1181. A lime kiln is an essential building for a sugar estate, a considerable quantity of lime being wanted to neutralize the acid of the expressed juice of the cane. A fixed kiln at the works is best, as what lime is wanted can then be burnt at any time; but it often happens that temporary kilns, composed of layers of stones and wood, with a funnel in the centre, are made in the woods, lighted and burnt, and the produce carried home. Such a kiln, twenty feet in diameter, and ten or twelve feet high, will produce lime enough to make sixteen hogsheads of sugar.(Jb. 314.)
1182. The houses of the slaves are grouped together on some estates, and scattered in different places in others, generally on the outskirts of the estate. They are low cottages of one or two apartments, with open sheds, and pieces of garden ground of from one-eighth to one-quarter of an acre attached to each, and some of them are kept neat, and have a clean, not uncomfortable appearance; they are generally built with stone, and covered with shingles.
1183. Every building composing the works of a sugar estate should be composed of the most substantial materials, durable, hard, well-seasoned timber, well put together, and supported by the best mason work. They should be shingled instead of being thatched, and kept free from the hungry, destructive ant, who, by his mighty though diminutive efforts, will level a substantial building to the ground in a short time. Poisoning by arsenic is the most expedient mode of getting rid of them, as the living will feed on the dead, so that the whole nest,(by devouring one another,) are thus killed.(Jd. 194).
1184. The live stock of a sugar estate are chiefly oxen, spayed heifers, and mules, as beasts of labor: the overseer generally keeps a riding horse, as does the resident agent or proprietor if there are such; and there are pigs and poultry, with some sheep for consumption. The cattle and mules are kept on the savannahs or open waste pastures, and on Guinea grass(Panicum) and Scotch grass(Panicum hirtellum, fig.199 a.) on which they are folded, tethered, or soiled. Mares and Spanish or Maltese jackasses are
kept for breeding the mules; and the cattle are in general reared on the estate. A jack should be from ten to twelve hands high, and either stubbled or put into a close pasture, with high, firm walls and gates to it. He should be regularly corned once a day at least; should have pure water to drink, and not suffered to cover more than one mare daily. The mares should be put to him in season, and attended by an experienced groom. A proper covering pit should be made for the mare to stand in, witha surmounting stage for the Jack to stand on. They should be daily taken and led out to exercise, kept well cleaned, and bv no means allowed to stay out in bad weather, but comfortably stabled, foddered, and littered. (Jb. 141, 142.)
1185. The agricultural operations of Jamaica are for the most part performed by the manual labor of indigenous slaves, but natives are also imported from different parts of the coast of Africa. The soil is seldom either ploughed or dug, but generally worked with the hoe pick. The spade the negroes are awkward at using; and they are not less expert at the plough. White ploughmen have been imported by some cultivators; but the prejudices of the overseers, the awkwardness of the oxen and negro drivers, and the effects of the climate in wearing out the spirits of the ploughman, are said to have dis- couraged its use. Long in 1774, Dr. Stokes,(Young’s Annals of Agr. xviii. 148.) and others, have tried the plough, and strongly recommend it as doing the work better and lessening the necessity of having so many slaves. Roughley, however, who was“ nearly
..>°= 2 SS.. S twenty years a sugar planter in Jamaica,”(Jamaica Planter’s Guide, 1823.) is decidedly against it, whether drawn by negroes or cattle; both because it does not do the work so well as the hoe, and because of the difficulty of getting ploughmen and properly trained beasts. It is probable, however, that necessity may ultimately lead to the use of the plough drawn by oxen, and that the operative man in the West India islands will in time assume the same attitude as in Europe.
1186. The agricultural productions of Jamaica of the greatest importance are sugar, indigo, coffee, and cotton.‘The several species of grain cultivated in this island are maize or Guinea corn, yielding from thirty to sixty bushels an acre; and various kinds of calavances, a species of pea; and rice, but in no great quantity.
The island abounds also with different kinds of grass, of excellent quality: the arti- ficial grass, called‘ Scots grass”(Panicum hirtellum, fig. 199 a.) grows sponta- neously in most of the swamps and morasses of the West Indies; and it is so pro-
a
hcl
jure, that a goes for 8 polygon iy te sugar ims ae chel te plenty of wo planter; Europe furnish cheaper rte tha js cheap and f amass were DIO fol for some Bl che just kinds of katehe known in Europ wands and the Town are suppli fun parsnips pease, asparagus barbs, in the gr genous producti the esculent veg yams of several v age, eddoes(dt smeet potatoes, of the island fne-apple, tam cishen-apple, C
Parr],
White People tt 8 Tate, in these vitts Xe Over, Who,
les, na&, or almost al
ays
trical Situation house, host Tpenter’s shone ) atTanged as:
DB. Ttshouldty und
Be Well.covera) he purpose of T very little us eal conveniene: for th I th a wel
duce lime enoug
different places in artmen! attached to each, ley are general
hem, as the living 1.(1b, 194 ts of labor; the
ild be fron
red, and lit
formed by th
ferent parts nerally worket ney are not les
ultivators; bu! rivers, and te id to have di viii, 148.) at vork better al! 10 was“neal 3,) 18 decidedly do the work 9 roperly rae the use ol Ht islands will
nportance ale ‘vated in thi an acre; att eat quant)
ty:
rows spol" se te cg pile “it is 80 P
the atl
Boox I. AGRICULTURE IN NORTH AMERICA. 195
ductive, that a single acre of it will maintain five horses for a whole year.‘The‘‘ Guinea-grass (P. polygonum, fig. 199 b.) is next in importance to the sugar-cane, as the grazing and breeding farms are chiefly supported by it. Hence arises the plenty of horned cattle, both for the butcher and planter; which is such, that few markets in Europe furnish beef of better quality, and at a cheaper rate than that of Jamaica. Mutton also\ is cheap and good.‘The seeds of the Guinea- grass were brought from the coast of Guinea, as food for some birds which were presented to Ellis, chief justice of the islands. The several kinds of kitchen-garden productions,| that are known in Europe, thrive in the mountains of this island; and the markets of Kingston and Spanish Town are supplied with cabbages, lettuces, carrots, turnips, parsnips, artichokes, kidney-beans, green pease, asparagus, and various sorts of European herbs, in the greatest abundance. Other indi- genous productions, that may be classed among Ih H NG eA the esculent vegetables, are plantains, bananas, WU ANN, HT QQ PP yams of several varieties, calalaa(a species of spin- age), eddoes(drum and Caladium), cassavi, and sweet potatoes. Among the more elegant fruits of the island we may reckon the anana, or
200 HISTORY OF AGRICULTURE. Parr I.
of pepper, American coffee, capsicum or Guinea pepper, and the wild cinnamon (Laurus canella). Several medicinal plants of high estimation grow here spontaneously, and in great abundance,_such as the contrayerva, the Indian pink, the mechoacan, the jalap, the amyris which yields the gum elemi, and the guiacum.[Besides the Brazil wood, this country furnishes for ornamental use, or for the purpose of dyeing, logwood, fustic, mahogany, ebony, rose-wood, satin-wood, and many others. Among its ornamental plants are the Brazilian myrtle, the scarlet fucshia, and the amaryllis formosissima.
1209. The genuine Ipecacuanka root(Cephaclis ipecacuana) grows wild in groups on the woody moun- tains of Serra de Mar, north from Rio de Janiero to Bahia. The roots are pulled up by the negroes in the rainy season, dried in the sun, tied in bundles, and sold to the dealers of roots in Rio.‘The savages use an oat) of these roots as a vomit, much in the same way as we do.(Spix and Martius’ Travels in Braxil, ii. 221. ~ 1210. The pot tree(Lecythis ollaria) is one of the greatest ornaments of the woods; its immense stem is above a hundred feet high, and spreads into a majestic ana vaulted crown, which is extremely beau- tiful in the spring when the rose-coloured leaves shoot out, and in the flowering season, by the large white blossoms. The nuts, which have a thick shell, are of the size of a child’s head, with a lid which is loose all round, and which at length, when the weight of the fruit turns it downwards, separates, and lets the seed fall out. Ina high wind it is Gangerous to remain in the woods on account of these| ry nuts fall- ing from so great a height. Phe seeds are collected in great quantities hy the Indians, who are extremely fond of them, and either eat them raw, or preserve them roasted and pounded, in pots, and the shells themselves are used as drinking cups.(Spiz, vol. ii. p, 222.) f
1211. Several species of Bromelia, or Paullinia, afford thread called gravata and imbé, which is prepared by maceration as in Sicily from the Agave Americana, and wove into cloth, or twisted into ropes and cordage.:: é
1212. Mandiocca(Jatropha) is cultivated for the flour made from its roots: the Mandubi bean, for its seeds: Paraguay tea, which is used as a substitute for that of China, and broad beans, tobacco, maize and other plants of Europe.>
O1: M WON? ea earechiona has s) ys
1213. The live stock of Bra zl are chiefly horned cattle, which are abundant, and hunted
merely for their hides: of these hides 20,009, it is said, are annually sent to Europe
hy| aken< al 1d mar~s.>:°.~ These cattle are taken and killed more for the sake of their hides and tallow than their flesh; though great quantities of the latter are applied to the use of such ships as sail a> 2, Je ryS. sy. 3 ys a ¢<~ hd mn
from Pernambuco, Bahia, Todos os Santos, and Rio de Janeiro, toGuinea. The places which are chiefly frequented for procuring these cattle are Rio Grande and Rio Paraiba, lying to the northward of Pernambuco; and they are inhabited by Indians, called r 2 3> x 5 Japuyes; many of whom send annually large droves of cattle through the Tupipue nation.
12145 Lhe musk, ox, deer, bear, hog, hare, and other useful animals, abound in the forests; and there is some danger also from those of a noxious description, to guard against which the natives light fires, and when they can afford it sleep in hammocks suspended from the trees.(fig. 208.)
1215. Cayenne or french Guiana, is a fertile country, and has been long well cultivated by the colonists. The climate is salubrious; the sur- face of the country is not moun- tainous, but abounds in hills and forests; the soil is in general un- commonly fertile; and the produc-: NN tions it yields are of excellent quality, See The Cayenne pepper(Capsicum annuum, and other species) is a noted produce of this country, and with sugar, cocoa, coffee, indigo, maize, cassia, and vanilla, form the chief articles of its commerce. The interior paris, though much neglected, and remaining obstructed by thick forests and underwood, feed nevertheless a great number of horses, sheep, goats, and cattle, which roam at pleasure: the beef and mutton are reckoned ex- cellent.(Maison Ruslique de Cayenne,&c., Paris, 1763.)
1216. Suriname is 209 alow moist country, which has been in part studded with=— wooden houses,( fig.
209.) and well culti- vated by the Dutch. The climate is hot, but tempered by the 4 sea breeze. The SS=== surface of the country is little varied by inequalities. The uncultivated parts are covered with immense forests, rocks, and mountains; some of the latter enriched with a great variety of mineral substances; and the whole country is intersected by very deep marshes or swamps, and by extensive heaths or savannahs. The soil is, in ceneral,
Ss ———
gua====———
t
Joos I,
vey fel Fr yar wich preve ofthe sol
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comfortable,
interesting: 5
his local me, and done,(So
1218, Ana Lara it i kno Pia Position lets, and its the p
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‘ay I,
Boox I. AGRICULTURE IN SOUTH AMERICA. 201 re very fertile; and all the appearances of fertility may be ascribed, not only to the rains hoaean, and warmth of this climate, but also to the Jow and marshy situation of the country, des the which prevents the intense heats from destroying vegetation, and to the extreme richness dyeing, of the soil, particularly in those parts that are cultivated by European industry.
Araony: 1217. The principal products of Surinam are tobacco, sugar, coffee, cocoa, cotton, and
maryllis indigo. The Quasia tree, or bitter drug, used by the porter brewers, grows wild in ” the woods, and was first exposed for a
vate sale by a native called Quas, after————
Toes in the whom the tree is named. The cab- 7— f/f;
18S Use an bage tree is abundant, and_ besides Z fl
im Bra, the tender leaves produces a Here Nisa
nense stem(fig: 210 a.) the larva of which()=/7
pe is eaten by the natives as a luxury. a4= eet
ich] a A eee account of this colony is given by captain Stedman, ee&e, t.) who filled an important military situation there for sree years. This
ind lets the 2vols. 4to. 1794 gentleman, in the‘nike of the most arduous duties, contrived to make himself tolerably
¥ nuts fall fall.
see me ly athe si comfortable. He built a country house there(fig. 211.); kept a wife, pigs, bees, sheep, 211]=e‘ and cattle, and had is prepared Z ild ; Sr children and slaves. He Pes anc
lived by turns with his family in a house, and with strange women in the woods, where he slept in hammocks (fig. 212.) and adopted
for its
aCCO, maize,
nd hunted ) Europe,
than their a>(.. f ots Li many. of the practices : fie unt Hil i of the cities. He ape made many sketches, oe and kept a journal; and Toninne after many years full of pp endearing scenes with Joanna nd in the , to guard
his local wife, he came home and wrote a very entertaining account of what he had seen and done.(See Stedman’s Surinam, 2 vols. 4to. 1794.)
1218. Amazonia is an extensive, unconquered, or at least uncivilized country. In so far as it is known, its climate is more temperate than might be expected from its geogra- & of this phical position. The surface of the country is clothed i in most places by interminable forests, and its immense river is well known. The soil of a small settlement formed by the Portuguese, is very fertile, and produces corn, grain, and atl kinds of tropical fruits; besides a variety of timber, as cedar, brazil-wood, oak, ebony, iron-wood, log-wood, Bad other dyeing w oods; and also cocoa, tobacco, sugar-canes, cotton, cassava root, potatoes, yams, sar saparilla, gums, raisins, balsam of various sorts, pine-apples, guavas, bananas, &c._The forests abound with wild honey, and also with tigers, wild boars, buffaloes, deer, parrots, and other curious birds( fig. 213.), and game of va- rious kinds. The rivers and lakes afford an ample supply of fish, sea-cows, and turtles; but the alligators and water serpents render fishing a dangerous employment.‘The trees, fields, and plants, are verdant throughout the year.
1219. Patagonia consists for the greatest part of open deserts and savannahs, with a few willow trees on the rivers. It seems to en- joy a temperate, but rather cool climate; but separated in the middle by the vast mountains of the Andes, one part of it differs widely from the other. To the northward of La Plata, this part of
the chief Aining
iit of horses,
coned eX
213
arts are x:: a 6:
arts a South America is covered with wood, and stored with an inexhaus- ied with tible fund of large timber: but to the southward of that river, the by ve) eye can scare: Jee discover a single tree or shrub fit for any mechani- senetaly
202 HISTORY OF AGRICULTURE, Part I.
eal purpose; but even this seemingly barren country has some good pastures, and nu- merous droves of wild horned cattle, and every district abounds with horses, which are supposed to have been brought hither by the Spaniards.
1220. Of the south American islands, that of Juan Fernandez abounds in pasture, cattle, and woods; and Terra del Fuego, amidst its horrible snows, exhibits a variety of plants. The Falkland islands contain a variety of fowls and plants, somewhat resembling those of Canada. Georgia is a field of ice, in which, or in any of the other islands, there is no cultivation whatever.
BOOK II.
AGRICULTURE AS INFLUENCED BY GEOGRAPHICAL, PHYSICAL, CIVIL, AND POLITICAL CIRCUMSTANCES.
1221. Agriculture, considered in regard to climate, territorial surface, and society, presents some features, which it may be instructive to recognize. Whoever has perused with attention the outline which we have now concluded of the field culture of the different nations of the world, must have a general and enlarged view of that art; and must ne- cessarily have observed, that there are different species of territorial culture, founded on difference of geographical position or climate; difference of physical circumstances or surface, and differences of civilization or human wants. The object of the present Book is to characterize these different species, and to refer to them the proper districts through- out the world.
EPR
Cuar. I. Agriculture as influenced by Geographical Circumstances.
1222. The influence of climate extends not only to the kind of plant and animals to be cultivated, but to the mode of culture. A few useful plants are universal, and but afew. Of those belonging to agriculture, we may enumerate most of the pasture or hay grasses which are annuals, and of the cereal grasses, the wheat, rye, and barley. The oat, the pea, bean, turnip, potatoe, and the perennial pasture grasses, will neither thrive in very hot, nor in very cold climates; the maize, millet, and rice can only be grown in warm countries, and the oat in temperate regions. The roots and fruits of what are de- nominated hot climates, as the yam, plantain, bread-fruit,&c. are limited to them; and equally so the timber trees of temperate and torrid regions, as the oak and pine, the ma- hogany or teak-tree.
1223. Animals as well as plants are similarly affected by climate. Some animals are universal, as the ox and swine, which are found in every latitude; others are limited in their range, as the rein-deer, camel, elephant, and, considered as a cultured animal, the sheep, The horse and ass are nearly universal, but cannot be substituted for the rein- deer. The sheep will exist in India and also in Greenland, but lose their useful charac- ter in both countries; in Greenland they require protection during nine months of the year, and in India their wool is changed to hair, and the carcase is too lean for the butcher.
1224. The culture required for both plants and animals depends materially on climate. It is not easy for a person who has never been out of Britain to conceive a just idea of the aquatic culture even of Italy or Spain. In these countries though most crops, whether of grain or roots, require watering, yet some in the rainy season may be obtained in the usual way, as melons in Italy and onions in Spain. But in Arabia, Persia, and India no culture can be undertaken without water, excepting in the upper regions of mountains. The fundamental process of culture in these countries is to prepare the surface for the reception of water, and its circulation in trenches and gutters, and to procure the water by raising it from wells or rivers by machinery. Wherever the surface cannot be irrigated, no regular culture need be attempted or corn crop expected. Nature in such situations produces periodical crops of annual succulents or bulbous rooted plants; and man might, perhaps, to a certain extent, turn this circumstance of climate to account, by changing the sorts of annual bulbs,&c. from such as are useless, to such as are useful. The onion or edible crocus or cyperus might, perhaps, be substituted for the ixia of the Cape; and the sesamum, or some rapid annual, furnishing useful seeds or
a ae
joc I|
rhage, for| ieebryant sot.
6, Cult oftheir supe sapped itis gych lands W1 aad for incr mode of wat from the appl rather than 1
generally SUD] area object 0 an sublerran and the roots freed from 1 adit the light cil free from
nee Hing hing pars of Eur is produced| spring, the ag bot valleys of from the acce the sun dur manures are countries, au intense heat, every thing 1226, He that of the and that of former belo part of the great part ¢
agricullure|
sary; 10
by watering 4s opposed the arctic ci soll, admits fishery and tl
aspect, island general ideas j 199 each side of 1299, The degree north g 1230, The( south of the eq 123], Thea serenth degree
Pay[, Boox Il. AGRICULTURE UNDER VARIOUS CIRCUMSTANCES. 208
Tes, and Nie/ 8) Which ap herbage, for numerous annual weeds, and the cochineal cactus for the shewy but useless Mesembryanthemums and Stapelias of the African wastes. These, however, are only ‘ture, cattle, suggestions. “ty of plants, 1225. Culture in the north of Ewrope depends for the most part more on draining lands Ming thas of their superfluous water, than on artificial supplies of that element. When irrigation there is ny is applied it is limited entirely to grass lands; and that not for the purpose of supplying such lands with moisture, but for stimulating by manure held in solution by the water, and for increasing or maintaining heat. The greatest care is requisite to prevent this mode of watering from proving more injurious than useful; but little danger results from the application of water in hot countries, and there it is valuable by moderating rather than increasing the temperature of the soil. Water in the north of Europe is generally supplied in more than sufficient quantity by the atmosphere; and therefore one great object of the cultivator is to keep the soil thoroughly drained by surface gutters and subterraneous conductors; to keep it pulverized for the moisture to pass through, and the roots to extend themselves; well stocked with manure to supply nourishment; POLITICAL freed from weeds, to prevent any of this nourishment from being wasted; and to admit the light, air, and weather to the useful plants. In the hot countries keeping the iely, presents soil free from weeds is generally a duty easily performed, and often rendered un- perused with necessary; for whenever water is withheld even in the south of Spain(724.), every ‘the differen living thing is burned up with drought. It is remarkable that in the most northerly and must nee parts of Europe and America the same effect, especially as to fibrous rooted perennials, , founded on is produced by cold, and in Russia and New England, where there is scarcely any umstances or spring, the agriculturist has only to plough once, and sow in the same way as in the present Boot hot valleys of the south of Spain, and South America, where vegetation is equally rapid
from the accession of moisture as it is in the cold plains of Russia from the influence of the sun during the long days of a northern summer. In hot countries putrescent manures are not altogether neglected, but they are much less necessary thanin cold countries, and can be done without where there is abundance of water;— there water, intense heat, and light, a consequent moist atmosphere, and a well pulverised soil, supply every thing necessary for luxuriant vegetation.
1226. Hence itis that agriculture considered geographically admits of two grand divisions, that of the cold climates, which may be called agriculture by draining and manures; and that of the hot climates, which may be called agriculture by irrigation. To the former belongs the greater part of Europe, the north of Asia, the north of America, and
cts throurh- 3
and anil part of the Australasian isles; to the latter, Egypt, Persia, India, China, Africa, and rsa, and but great part of the south of America, and part of Australasia. As intermediate between he pashute a agricuiture by watering, and agriculture by draining, may be mentioned that mixed culture me; The by watering and manuring which prevails in the south of France, Spain, and Italy; and ther thrive y
as opposed to the aquatic culture of the torrid zone may be placed the rural economy of
be grown in the arctic circle, which, from the prevalence of cold and ice, precludes all culture of the
what are de soil, admits little else than the growth of mosses and lichens, and is therefore limited to 0 them; and fishery and the chase. ine, the mae 1227. These leading divisions of culture are by no means so absolute as to be determinable ne by degrees of latitude, so much depending on physical circumstances; as elevation, soil, animals are aspect, island, or continent,&c.; but as an approximation which may impress some re limited in general ideas in the mind of the practical agriculturist, we submit the following: animal, the 1228, The agriculture of irrigation may be considered as extending thirty-five degrees for the relt- on each side of the equator.: eful charac- 1229. The agriculture of manures and irrigation from the thirty-fifth to the forty-fifth onths of the degree north and south of the equator. Jean for the 1230. The agriculture of draining and manures from the forty-fifth degree, north and south of the equator, to the sixty-seventh degree or arctic circle. on climate. 1231. The artsof fishing and hunting, as the only means of subsistence, from the sixty- just idea of seventh degree, or arctic circle, to the pole. nost crops; he obtained 2 Persia, and regions ol repare the Cade,-11- sok Agriculture as influenced by Physical Circumstances. ne surf Nature 1232. The physical circumstances which principally affect agriculture are temperature -d plants; and light, elevation, moisture, and soil. account, 1233. Temperature and light have the most powerful influence on the culture both of +h as are plants and animals. Elevation, when not considerable, admits of being rendered sub- .d for the servient to the processes of culture, and to the habits of different plants and animals; | seeds OF
204 HISTORY OF AGRICULTURE. Part I.
moisture may be moderated or increased, soil improved; but temperature and light are in a great measure beyond human control. Hence it is that the plants and animals culti- vated by the agricultor, do not altogether depend on his skill or choice, but on his local situation. Not only the maize, rice, and millet, which are such valuable crops in Asia and Africa, cannot be cultivated in the north of Europe, but even within the extent of the British isles, some kinds of grain, pulse, and roots, cannot be grown to such perfection in certain districts as in others. Thus the Angus variety of oat will not come to the same perfection, south of London, that it does north of York; and of different varieties the Dutch, Polish, and potatoe oat will succeed better in a warm climate, than the Angus, black, or moorland oat, which answer best for cold, moist, and elevated districts. The turnip arrives at a greater size in Lancashire, Berwickshire, and Ayrshire, than it does in Kent, Surrey, or Sussex, even admitting the best possible management in both countries, The pea requires a dry soil and climate, and more heat than the bean, and consequently ithrives much better in the south of England, in Kent, and Hampshire, than in Scotland or Ireland. It is certain that the perennial grasses thrive best where the temperature and light is moderate throughout the year, as on the sea-coast in various countries, where mild- ness is obtained from the influence of the sea, and light from the absence of a covering of snow; and also in the south of England, where the snow seldom lies, and where the tem- perature is moderate, and the nights not so long as they are farther north. It is equally certain that in America and Russia, where the cold is intense during winter, and the plants on,the surface of the ground are deprived of light for six or seven months together by a covering of snow, all herbaceous vegetation is destroyed. Contrasted with these facts, may be mentioned as equally well ascertained, that annual plants in general attain a greater size, and a higher degree of perfection, where the winters are long, and the summers hot and light; the reason of which seems to be that the alternate action of heat and cold, rain and ice, meliorates the soil and prepares it better for the nourishment of annuals than it can well be in countries where the soil is not only harder naturally,(for all coun- tries that have long winters have soft soils,) but more or less occupied by perennial weeds, insects, and vermin. In cold countries the insects are generally of that kind whose eggs go through the processes of the larva and chrysalis state under water, and land reptiles are generally rare.
1234. Elevation, when considerable, has an absolute influence on agriculture. The most obvious effect is that of obliging the agriculturist to isolate his dwelling from those of other cultivators or villagers in the plains, and to reside on his farm. This is well exemplified in Switzerland and Norway. We have already noticed the judicious reflections of Bakewell on the subject as referable to the former country(336.), and have also referred to those of Dr. Clarke respecting Norway(591.). The latter author has depicted these alpine farms, both with his elegant pen and habile pencil(fig. 214.). The
214 on
zi
(LAS
farmeries are generally built with fir planks, and covered with birch bark, and turf. The inhabitants chiefly live by the dairy, and seldom see their neighbours or any human being beyond their own fire-side, excepting on the Sunday morning when they go to church, and on the Sunday afternoons in summer when they meet to dance(fig. 215.), and amuse themselves.
jo I Al
1935, As dl tperatit I wig to the vs influence aust corespo in height ate 0 tall a dean gon a. diflere nenly_ tele Alene it ist temperate ma) the torrid 200 rountats of J fwveenl their ba wen in the lin Deronstie W Cheviot, rat fet above the Western isles.
1936, Eleva this respect Inu ofthe agricult ako on the den respects must upper mountal cupies are oft
1937. That obvious; thou species of cul under ordina surface, can| gravelly or s
1238. Th and though yet fen lanc counties, Wi grasses will
1239, ds, agriculture
of the four u
1040, Th meadows,
1241, Thea vegetation is months,
1242, The ¢ distinguished f to inds on the
1243, Comm al the ctops an Teared,
Agrioy
IM The inf * ety consider
Parr J, Boox Il. AGRICULTURE UNDER VARIOUS CIRCUMSTANCES. 205
ight are 1235. As elevation is known to lessen
s culti- temperature in regular gradation ac-
Us local cording to the altitude above the sea,
in Asia its influence on plants and animals
it of the must correspond. Three hundred feet
fection in height are considered nearly equal
the same to half a degree of latitude, and occa-
ties the sion a difference of temperature of
> Angus, nearly twelve degrees of Fahrenheit.
ts. The Hence it is that the agriculture of the\
t does in temperate may sometimes be adopted in a Sy
OUNtries, the torrid zone, and that some of the ed
sequently mountains of Jamaica will produce be- eid
Scotland tween their base and summit, almost all the plants of the world. Hence, also, that ature and even in the limited extent of the island of Britain, a given elevation on mountains in lere tnild. Devonshire will be adapted for a different agriculture to the same elevation on the Wering of Cheviot, Grampian or Sutherland mountains; and while wheat ripens at six hundred the fae feet above the level of the sea in Cornwall, oats will hardly ripen at that height in the is equally Western isles. the plants 1236. Elevation exposes plants and animals to the powerful operation of wind, and in ther bya this respect must influence the disposition of the fields, fences, plantations, and buildings facts, may of the agriculturist, as well as the plants and animals cultivated. It has some influence a greater also on the density of the air and the supplies of water and vapour, and even in these
nmers hot respects must affect the character of the agriculture. In Switzerland and Norway the and. cold upper mountain farms are completely above the mere dense strata of clouds, and their oc-
f annual cupiers are often for weeks together without getting a view of the plains or valleys below, annuals©< c?
jalliqene 1237. That soil must influence the agriculture of a country appears at first sight very ial weeds obvious; though if climate be favorable, time and art will render the soil fit for any hose eres species of culture. Naturally, however, soil has a powerful influence; and the period eptilesare under ordinary management will be considerable, before strong deep clays on a flat surface, can be rendered equally fit for the turnip or potatoe, with friable loams, or more re The gravelly or sandy soils.:: Kio fiom 1238.) The influence of moisture on the state of lands, is naturally very considerable, This is and though draining and irrigation can effectually remove excess or supply deficiency, caidas yet fen lands and chalk hills, such as we find in Huntingdonshire, Surrey, and other : counties, will ever have a peculiar character of agriculture; the marsh perennial hay and have: grasses will be the characteristic plants of the former, and saintfoin of the latter.‘ ane 1239. As the general result of this outline of the influence of physical circumstances on 5) ele
agriculture, we may form a classification of that of any particular country to whichever of the four universal divisions(1228. to 1231.) it belongs. We submit the following:—
1240. The agriculture of water-fed lands, including fens, marshes, and marsh meadows.
1241. The agriculture of sun-burnt lands, including chalk, gravel, and sandy hills, where vegetation is annually more or less burned up during two or more of the summer months.
1242. The agriculture of mountains, in which the farmery is placed on the farm, as distinguished from those cases in which the mountain lands or a part of them are appended to lands on the plain. aid 1243. Common agriculture, or that of the plains, valleys, and hills of a country in which = all the crops and all the animals suitable to the climate may be profitably cultivated and reared.
——I
Cuar. III.
Ss Agriculture as affected by Civil, Political, and Religious Circumstances.
1244. The influence of the state of society and government on agriculture, must obviously be very considerable, as well as climate and situation; for it will signify little what a country is capable of producing, if the inhabitants are too barbarous to desire, too igno- rant to know, or too much oppressed to attain these products. Some of the finest lands in the world, capable of producing wheat, maize, rice, and the grape, are in-
The: habited by savages, who live on game, wild fruits, or native roots; or by half civilized being tribes who cultivate maize, and yams, or some other local root. Even in Ireland, hureh, where the soil is better than in Britain, and with very moderate culture will produce amuse excellent wheat and other corns, with beef, mutton, and wool, the greater part of the
inhabitants from ignorance, oppression, and in part as we haye seen(840.) religious
(a a~ a SE=== se a SE=
—
a ore
206 HISTORY OF AGRICULTURE, Panr
slavery, content themselves. with roots and rags, the latter often the cast off refuse of other countries(830).:
1245. The state of civilization and refinement of a people not only influences agriculture by the nature of the products such a state requires, but also by the means it affords of pro- ducing these products. By the superiority of the means of information on every subject; by the existing state of knowledge, for example, in mechanics, chemistry, and physiology, by which the implements and machines are improved, the operations of soils and manures regulated, the influence of water, the atmosphere, and the functions of plants and animals understood. The difference in the means taken to effect the same end in a poor but yet ingenious country, and in one rich and enlightened, is exemplified in China and India, compared with Britain; and between a comparatively poor and intelligent country, and a rich ignorant country, in comparing Scotland and England, at least as far as agriculture is concerned. Wealth and ignorance, as contrasted with poverty and ingenuity, may also be exemplified in comparing the farmer of Hindustan with the English farmer.‘The latter to stir the soil, employs an unwieldly implement drawn by several oxen or horses; the former uses a small light implement drawn by one ox or buffalo, but effects his object by repeating the operation many times. The Englishman effects it at once, often in spite of the worst means, by main force. The processes of Chinese manufacture are exceed- ingly curious and ingenious, and form a remarkable contrast to the rapid and scientific processes of Britain. There are many curious 216 practices in France and Germany, the result of poverty and ingenuity. In Brittany the whin is used as horse provender: to bruise the spines one man operates on a simple but ingenious machine(fig. 216.), and effects his purpose completely. Here the same thing is done by a couple of iron rollers turned by a horse or by water. But the farmer of Brittany, who would purchase a pair of whin bruising- rollers, must first sell the greater part of his stock and crop.
1246. The political state of a country will powerfully affect its agriculture. Where se- curity, the greatest object of government, is pro- cured at too high a rate, the taxes will depress the cultivator, and not only consume his profits, but infringe on his capital; where security, either relatively to external circumstances, or internal laws, is incomplete, there the farmer who has capital will be unwilling to risk it; so, few who have capital will engage in that pro- fession; and if any finds it profitable, the fear of exposing himself to exactions from government or his landlord, will prevent him from making a preper use of his profits either in the way of employment or consump- tion. Many instances of this state of things are to be found in the foregoing history. Wherever the metayer system, or short leases prevail, whatever may be the nature or practice of the government, these remarks will apply. Security and liberty at a moderate price are essential to the prosperity of agriculture, even more so than to manufactures or commerce.
1247. Religion may be thought to have very little influence on agriculture: but ina Catholic or Mahommedan country where the religion enjoins a frequent abstinence from animal food, and long periodical fasts from even the produce of the cow, surely the rearing and feeding of stock for the shambles or the dairy cannot prosper to the same ex- tent as in a country less enslaved by prejudice, or whose religious opinions do not inter- fere with their cookery. The number of holidays is also a great grievance.
1248. The natural character of a people may even have some influence on their agri- culture, independently of all the other circumstances mentioned.‘The essential character of a people is formed by the climate and country in which they live, and their factitious or accidental character by their government and religion for the time being. The latter may alter, but the original or native character remains. Thus the French appear to be the same gay people which they were in the time of Julius Cesar; and as far as history enables us to judge, the Greeks and Romans have only lost their accidental character. The love of society and social amusements inherent in every class of Frenchmen, will probably long prevent their agriculturists from isolating their farmeries, as in the vale of Arno and the Alpine regions of Europe, and indeed of every mountainous country. French and Italian farmers, in general, live together in villages, sometimes five or six miles distant from their farms: early in the morning the household set out with the cattle and
———_—
U
é AS lh Ww
ATS Zo LES
jut I
iglements jensel® an sur, mee! the xf dane ti
1049, The t i following fi
1950,‘The 4 iis property plies, 45 ge
O51. The ag seant at wil culture.
1959, Barba dia, and 01 mithout regard
1958, The€
Hy r00ts.
1954, To w the British isle following as it
1255. Geng
1256, Phy plains,
1257, Soc
1258, Th kind of agric ever has paid of the agrie that very litt
1259, All 8 confined an ettended a ore arangement of Ot lay of an art
1260, dorioy tis theory. Nan stationg his OWn particy ate favorable to Can have no {eience Teor
Panr lg
Boox II, AGRICULTURE CONSIDERED AS A SCIENCE, 207 Of other a implements, and their food for the day; they work till near mid-day, and then refresh riculture themselves, and repose under a tree, or in winter under a temporary shed; at night they 8 of pro. return, meet their neighbours, make a protracted supper, and amuse themselves in fiddling ‘Subject and dancing, till they have exhausted their superfluous spirits.: Sidlogy 1249. The agriculture of the world in regard to the state of society may perhaps admit of | manures the following divisions,— animals 1250. The agriculture of science, Or modern farming, in which the cultivator is secure or but yet in his property or possession, both relatively to the government and landlord under which
id Indig he lives, as generally in Britain and North America. ; 1251. The agriculture of habit, or feudal culture, in which the cultivator is a metayer, or
ntry, and sticulture a tenant at will, or on a short lease, or has covenanted to pursue a certain fixed system of 1ay also be culture. The latte 1252. Barbarian agriculture, or that of a semi-barbarous people who cultivate at ran- OTses the dom, and on land to which they have no defined right of possession, roots or grain objet by without regard to rotation, order, or permanent advantage. in spite of 1253. The economy of savages, such as hunting, fishing, gathering fruits, or digging re exceed. up roots. d scientific
eel \ \ Cuar. IV. \\\ Of the Agriculture of Britain.
1254. To which of these geographical, physical, and social divisions of agriculture that of the British isles may be referred, is the next object to be determined, and we submit the following as its classification.
1255. Geographically it is the agriculture of draining and manures.
1256. Physically, those of water-fed and sun-burnt lands, mountains, and variable plains.
1257. Socially considered, it is the agriculture of science.
1258. The following parts of this work, therefore, are to be considered as treating of a kind of agriculture so characterized; that is, of the agriculture of our own country. Who- ever has paid a due attention to what has preceded, can scarcely fail to have formed an idea of the agriculture of every other part of the world, sufficient to enable him to determine that very little in our art is to be learned any where else than among ourselves.
event him PART Tl:
consump- ¢ history. AGRICULTURE CONSIDERED AS A SCIENCE. nature or moderate 1259. All knowledge is founded on experience; in the infancy of any art, experience nufactures is confined and knowledge limited to a few particulars; but as arts are improved and extended a great number of facts become known, and the generalization of these, or the - hut ina arrangement of them according to some leading principle, constitutes the theory, science, once from or law of an art. surely the 1260. Agriculture, in common with other arts, may be practised without any knowledge same eX of its theory; that is, established practices may be imitated; but in this case it must ever not inter- remain stationary. The mere routine practitioner cannot advance beyond the limits of his own particular experience, and can neither derive instruction from such accidents as heir agri- are favorable to his object, nor guard against the re-occurence of such as are unfavorable. character He can have no resource for unforeseen events but ordinary expedients; while the man Factitious of science resorts to general principles, refers events to their true causes, and adapts his
he latter measures to meet every case. 1261. The object of the art of agriculture is to increase the quantity and improve the
ar to be
ein quality of such vegetable and animal productions of the earth as are used by civilized aracter. man; and the object of the agriculturist is to do this with the least expenditure of means; vn, will or, in other words, with profit. The result of the experience of mankind as to other ob- yale of jects may be conveyed to an enquiring mind in two different ways: he may be instructed ountry: in the practical operations of the art, and their theory, or the reasons on which they are «miles founded, laid down and explained to him as he goes along; or he may be first instructed tle and in general principles, and then in the practices which flow from them. The former
208 SCIENCE OF AGRICULTURE. Parr IL.
mode is the natural or actual mode in which every art is acquired(in so far as acquire- ment is made) by such as have no recourse to books, and may be compared to the natural mode of acquiring a language without the study of its grammar.‘The latter mode is by much the most correct and effectual, and is calculated to enable an instructed agricul- turist to proceed with the same kind of confidence and satisfaction in his practice that a grammarian does in the use of language.
1262. In adopting what we consider as the preferable mode of agricultural instruction, we shall, as its grammar or science, endeavour to convey a general idea of the nature of vegetables, of animals, of minerals, mixed bodies, and the atmosphere, as connected with agriculture; of agricultural implements and other mechanical agents; and of agricultural operations and processes.
1263. The study of the science of agriculture may be considered as implying a regular education in the student, who ought to be well acquainted with arithmetic and mensur- ation, have acquired the art of sketching objects, whether animal, vegetable, or general scenery, of taking off and laying down geometrical plans; but especially he ought to have studied chemistry, hydraulics, and something of carpentry, smithery, and the other building arts: and as Professor Von Thaer observes, he ought to have some knowledge of all those manufactures to which his art furnishes the raw materials,
BOOK I.
OF THE STUDY OF THE VEGETABLE KINGDOM WITH A VIEW TO AGRICULTURE,
1264, The various objects with which we are surrounded are either organized, having several constituent parts which united form a whole capable of increase by nourishment; or they are inorganized, and only increased by additions to their external parts. To the first division belong the animal and vegetable kingdom, and their study is founded chiefly on observation; to the second belongs the mineral kingdom, the study of which in masses, or geology and mineralogy, is also founded chiefly on obseryation; and in re- gard to composition and elements, on experiment or chemistry.
1265. Vegetables are distinguished from animals as not being endowed with sentiment or a consciousness of existence. Their study has employed the attention of mankind from a very early period; and has been carried to a high degree of perfection within the last century; and more especially by the exertions of Linneus, Jussieu, Mirbel, and some other French philosophers. This study comprehends systematic botany, vegetable anatomy, vegetable chemistry, physiology, pathology, the distribution of vegetables, and vegetable culture. The study of these branches is of the utmost importance to the agri- culturist, especially that of vegetable physiology; and though the limits of this work do not permit us to enter into the subject at great length; yet we shall direct his attention to the leading points, and refer him to the best books.
Cuar. I.
Of the Study of Systematic Botany.
1266. Glossology, or the study of the names of the parts of plants, is the first step in this department.
1267. All the arts and sciences require to express with brevity and perspicuity a crowd of ideas unused in common language, and unknown to the greater part of men, Whence that multitude of terms, or tech+ nical turns, given to ordinary words which the public turn often into ridicule, because they do not feel the use of them, but which all those are obliged to make use of, who apply themselves to any study what- ever. Botany having to describe an immense number of beings, and each of these beings having a great variety of organs, requires a great variety of terms. Nearly all botanists are agreed as to these terms, and in order that they may be universally understood and remain unchanged in meaning, they are taken from a dead or fixed language.
1268. A plant in flower surveyed externally, may be perceived to be composed of a variety of obvious parts, such as the root, the stem, the branch, the leaf, the flower, the fruit, and perhaps the seed; and other parts less obvious, as buds, prickles, tendrils, hairs, glands,&c. These, with their modifications, and all the relative circumstances which enter into the botanical description of a plant, constitute the subject of glossology, or the study of the language of botany. The reader may consult Syith’s Introduction to Botany, or almost any recent work on the elements of botanical science.
1269. Phytography, or the naming and describing of plants, is the next part of the subject to be considered. Before botany became a regular science, plants were named as individual beings, without regard to any re- lation which they had to one another. But from the great number of names to be retained on the memory, and the obvious affinities existing among certain individuals or natural families, some method was soon found necessary, and it was then deemed requisite to give such composite names as might recal to mind something of the individuals to which they were applied. Thus we have Anagalis flore ceruleo. Mespilus aculeata pyrifolia,&c. In the end, however, the length of these phrases became inconvenient, and Linnzus,
pot Is
gk with tis{neo il, the one the gel i, The names gus) Poppe’ 0 emono pclae laos ad OTS certain characte ‘orl In applying wld be fixed and l
one that discove? has no right to give may givelt
1070
ye, up
is istinguished by$0 me character hiite sens; and each ind to, A variety 1s 101 sea tothe particular 1913, Por the purpas
pne ether by the U iption of pla
cient without fig fuming dried collec books, or other pape
; theyare replaced. Wd, The language es are acd tables, and dis rants or organs, T «eond is the artificia nomenclature and cl anguites a dead or Knowledge of plants cultivators, whose 0 physiology, history, form a collection o them to the curator men, and refer to Plants, in which of Decandolle and
1275, Tavon logical botany, would be unequ objects of natu the different oj principles, So the natural relat Which the hole 1 damental organs 0 Tn both, those wh basis of classiicat
nutntion, and plan Li, Two kinds of andthe artificial, 4 tats, such into whic
ined without doing a
‘Ug facts ang ideas«|
ART I,
acquire. ‘Natural de js by agricul. “e that a
‘ruction, lature of onnected 5 and of
a revular Mensur. r general ought to the other howled ge
URE,
d, having rishment;
To the ; founded of which and in re-
sentiment kind from . the last and some vewetable bles, and the agri- work do attention
step in
unused in
or techs not feel dy what- ra great e terms, re taken
obvious ed; and cations, nstitute Smith's
dered. any Tee emoryy 1S soon. o mind fespilus NNeuss
Boox I. THE STUDY OF SYSTEMATIC BOTANY. 209
struck with this inconvenience, proposed that the names of plants should henceforth consist of two words only, the one the generic or family name, and the other the specific or individual name.
1270. The names of classes and orders were originally primitive, or without meaning, as the Grasses of Tragus, Poppies of Bauhin,&c.; and afterwards so.compounded as to be long and complex, as the Polloplostemonopetale, Eleutheromacrastemones,&c. of Wachendorf. Linnzus decided, that the names of classes and orders should consist of a single word, and that word not simple or primitive, but expressive of a certain character or characters, found in all the plants which compose it.
1271. In applying names to plants, three rules are laid down by botanists: 1st. That the languages chosen should be fixed and universal, as the Greek and Latin. 2d. That these languages should be used accord- ing to the general laws of grammar, and compound words always composed from the same language, and not of entire words,&c. 3d. That the first who discovers a being, and enregisters it in the catalogue of nature, has the right of giving it a name; and that that name ought to be received and admitted by naturalists, unless it belong to a being already existing, or transgress the rules of nomenclature. Every one that discovers a new plant may not be able to enregister it according to these laws, and in that case has no right to give it his name; but the botanist who enregisters it, and who is in truth the discoverer, may give it the name of the finder, if he chooses.
1272. The whole vegetable kingdom is divided into classes, orders, genera, species, and varieties. A class is distinguished by some character which is common to many plants; an order is distinguished by having some character limited to a few plants belonging to a class; a still more limited coincidence constitutes a genus; and each individual of a genus, which continues unchanged when raised from seed, is called a spe- cies. A variety is formed by an accidental deviation from the specific character, and easily returns by seed to the particular species from which it arose.
1273. For the purposes of recording and communicating botanical knowledge, plants are described, and this is done either by the use of language alone, or by language and figures, models or dried plants, conjoined. The description of plants may be either abridged or complete. The shortest mode of abridgment is that employed in botanical catalogues, as in those of Donn or of Sweet.‘The most exact descriptions are deficient without figures or an herbarium. Hence the advantage of being able to see plants at pleasure, by forming dried collections of them. The greater part of plants dry with facility between the leaves of books, or other paper, the smoother the better. If there be plenty of paper, they often dry best without shifting; but if the specimens are crowded, they must be taken out frequently, and the paper dried before they are replaced.
1274. The language of botany may be acquired by two methods, analogous to those by which common languages are acquired. The first is the natural method, which begins with the great and obvious classes of vegetables, and distinguishes trees, grasses,&c.; next individuals among these, and afterwards their parts or organs.‘This knowledge is acquired insensibly, as we acquire our native tongue. The second is the artificial method, and begins with the parts of plants, as the leaves, roots,&c. ascending to nomenclature and classification, and is acquired by particular study, aided by books or instructors, as one acquires a dead or foreign language.‘This method is the fittest for such as wish to attain a thorough knowledge of plants, so as to be able to describe them; the other mode is-easier, and the best suited for cultivators, whose object does not go beyond that of understanding their descriptions, and studying their physiology, history, and application. A very good method for a person at a distance from botanists, is to form a collection of dried specimens of all the plants which he wishes to know the names of, and to send them to the curator of the nearest botanic garden, requesting him to write the name below each speci- men, and réfer to some work easily procured, such as Withering or Gray’s Arrangement of British Plants, in which is given its description, uses, history,&c. Smith’s Introduction, and the Elements of Decandolle and Sprengel, may be referred to as the best works on phytography and nomenclature.
1275. Taxonomy, or the classification of plants, is the last part of the study ef techno- logical botany. It is very evident, that, without some arrangement, the mind of man would be unequal to the task of acquiring even an imperfect knowledge of the various objects of nature. Accordingly, in every science, attempts have been made to classify the different objects that it embraces, and these attempts have been founded on various principles.| Some have adopted artificial characters; others have endeavoured to detect the natural relations of the beings to be arranged, and thus to ascertain a connection by which the whole may be associated. In the progress of zoology and physiology, the fun- damental organs on which to found a systematic arrangement have been finally agreed on. In both, those which are essential, and which discover the greatest variety, form the basis of classification. Animals are found to differ most from each other in the organs of nutrition, and plants in the organs of reproduction.
1276. Two kinds of methods of arranging vegetabics have been distinguished by botanists, the natural and the artificial. A natural method is that, which, in its distribution, retains all the natural classes; that is, such into which no plants enter that are not connected by numerous relations, or that can be dis- joined without doing a manifest violence to nature. An artificial method is that whose classes are not natural, because they collect together several genera of plants which are not connected by numerous relations, although they agree in the characteristic mark or marks, assigned to that particular class or assemblage to which they belong. An artificial method is easier than the natural, as in the latter it is nature, in the former the writer, who prescribes to plants the rules and order to be observed in their distribution. Hence, likewise, as nature is ever uniform, there can be only one natural method; whereas artificial methods may be multiplied almost ad infinttum, according to the several different relations under which bodies are viewed. i
1277. The object of the natural method is to promote our knowledge of the vegetable kingdom by gener- alizing facts and ideas; the object of the artificial method is to facilitate the knowledge of plants as indi- vidual objects. The merits of the former method consist in the perfection with which plants are grouped together in natural families or orders, and these families grouped among themselves; the merits of the latter consist in the perfection with which they are arranged according to certain marks by which their names may be discovered. Plants arranged according to the natural method may be compared to words arranged according to their roots or derivations; arranged according to an artificial method they may be compared to words in a dictionary. The success attending attempts at botanical arrangement, both naturally and artificially, has been singularly striking. Linnzus has given the most beautiful artifi- cial system that has ever been bestowed by genius on mankind; and Jussieu has, with unrivalled ability, exhibited the natural affinities of the vegetable kingdom. For the study of this department we refer to the works of Smith, Decandolle, and Gray, already mentioned.
=—— er
——————————e:: ee
SCIENCE OF AGRICULTURE. Parr Ii.
Cuar. IT.
Vegetable Anatomy, or the Structure and Organization of Plants.
1278. Vegetables may be classed for the study of their anatomy and physiology, according as they are distinguished by a structure or organization more complicated or more simple. The former will constitute what may be denominated perfect plants, and will form a class comprehending the principal mass of the vegetable kingdom.‘The latter will con- stitute what may be denominated imperfect plants, and will form a class comprehending all such vegetables as are not included in the foregoing class. We shall first consider their external, and next their internal organization.
Secr. I. Of the External Structure of Perfect Plants.
1279, The parts of perfect plants may be distributed into conservative and reproduc- tive, as corresponding to their respective functions in the economy of vegetation.
1280. The conservative organs are such as are absolutely necessary to the growth and preservation of the plant, and include the root, trunk, branch, leaf, and frond.
1281. The root is that part of the plant by which it attaches itself to the soil in which it grows, or to the substance on which it feeds, and is the principal organ of nutrition.
1282. The trunk is that part of the plant which, springing immediately from the root, ascends in a vertical position above the surface of the soil, and constitutes the principal bulk of the individual.
1283, The branches are the divisions of the trunk, originating generally in the upper extremity, but often also along the sides.
1284. The leaf, which is a temporary part of the plant, is a thin and flat substance of a green color, issuing generally from numerous points towards the extremities of the branches, but sometimes also imme- diately from the stem or root, and distinguishable by the sight or touch into an upper and under surface, a base and apex, with a midrib and lateral nerves.
1285. The frond, which is to be regarded as a compound of several of the parts already described, con- sists of an union or incorporation of the leaf, leaf-stalk, and branch or stem, forming as it were but one organ, of which the constituent parts do not separate spontaneously from one another by means of the fracture of any natural joint, as in the case of plants in general, but adhere together even in their decay It is found in palms and ferns.
1286. The conservative appendages are such accessory or supernumerary parts as are found to accompany the conservative organs occasionally, but not invariably. They are permanent in whatever species they are found to exist; some being peculiar to one species, and some to another. But they are never found to be all united in the same species, and are not necessarily included in the general idea of the plant. They are denominated gems, glands, tendrils, stipula, armature, pubescence, and anomalies.
1287. Gems or bulbs are organized substances issuing from the surface of the plant, and containing the rudiments of new and additional parts which they protrude; or the rudiments of new individuals which they constitute by detaching themselves ultimately from the parent plant, and fixing themselves in the soil.
1288. Glands are small and minute substances of various different forms, found chiefly on the surface of the leaf and petiole, but often also on the other parts of the plant, and supposed to be organs of secretion.
1289. The tendvil is a thread-shaped and generally spiral process issuing from the stem, branch, or petiole, and sometimes even from the expansion of the leaf itself, being an organ by which plants of weak and climbing stems attach themselves to other plants, or other substances for support; for which purpose it seems to be well fitted by nature, the tendril being much stronger than a branch of the same
size.
1290. The stipule are small and foliaceous appendages accompanying the real leaves, and assuming the appearance of leaves in miniature.
1291. Ramenta are thin, oblong, and strap-shaped appendages of a brownish color, issuing from the surface of the plant, and somewhat resembling the stipule, but not necessarily accompanying the leaves.
1292. The armature consists of such accessory and auxiliary parts as seem to have been intended by nature to defend the plant against the attacks of animals. x
1293, The pubescence is a general term, including under it all sorts of vegetable down or hairiness, with which the surface of the plant may be covered, finer or less formidable than the armature.
1294. Anomalies. There are several other appen- dages proper to conser- vative organs, which are so totally difierent from all the foregoing, that they cannot be classed with any of them; and so very circumscribed in their occurrence, that they do not yet seem to have been designated by any peculiar appellation. The first anomaly, as af- fects the conservative ap- pendages, occurs in dio- noea muscipula or Venus’s fly-trap(fig.217a).
garded as the lowest in the vegetable scale, exhibiting a considerable resemblance to the tribe of zoophites, and thus forming the connecting link between the vegetable and animal kingdoms. The habitations they affect are very various, many of them vegetating on the surface of the earth ( fig. 220 a), and some of them even buried under it; others on stumps and trunks of rotten trees(b); others on decayed fruit; others on damp and wet walls; and others on animal ordure.
1310. Uses of the fungi. The pow- der of the lycoperdons is said to be an excellent optic; and is remarkable also for its property of strongly repelling moisture. If a basin filled with water, and alittle of the powder strewed upon the surface so as to cover it only, the hand may be plunged into it and thrust down to the bottom without being wetted with a single drop of water. Several of the boleti, when dried, afford a very useful tinder; and several of the agarics and tubers are used as articles of food, or as ingredients in the preparation of seasoning. The truffle(fig. 221.) is much
2
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1316, The interig Velopes the nucleus, Sarden-hean(fio 9
117, Thenucleu contained within the Of the albumen with| embryo,
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——
Boox I. INTERNAL STRUCTURE OF PLANTS. 213
esteemed for the rich and delicate flavor which it imparts to soups and sauces; and the mushroom(fig. 222.) and morel( fig. 223.) for their esculent property, and utility in the preparation of ketchup. 203
Secr. III. Of the Internal Structure of Plants.
1311. The organs of plants discoverable by external examination, are themselves reducible in component organs, which are again resolvable into constituent and primary organs. These are called the decomposite, the composite, and the elementary.
Sussecr. 1. Decomposite Organs.
1312. The decomposite organs constitute the vegetable individual, and are distinguishable on external examination; to the dissection of which we will now proceed, in the order of the seed, pericarp, flower, leaf, gem, and caudex, or branch, stem, and root, with their de- composite appendages.
1313. The seed.'The mass of the seed consists of two principal parts, distinguishable without much dif. ficulty; namely, the integuments and nucleus, or embryo and its envelopes.
1314. The integuments proper to the seed are two in number, an exterior integument and an interior in- tegument.
1515. The exterior integument, or testa, is the original cuticle of the nucleus, not detachable in the early stages of its growth, but detachable at the period of the maturity of the fruit, when it is generally of a membranaceous or leathery texture; though sometimes soft and fleshy, and sometimes crustaceous and bony. It may be very easily distinguished in the transverse or longitudinal section of the garden-bean or any other large seed.
1316. The interior integument,'or sub-testa, lines the exterior integument, or testa, and immediately en- velopes the nucleus. Like the testa, to which indeed it adheres, it may be easily distinguished in the garden-bean( fig. 224.), or in a ripe walnut; in which last it is a fine transparent and net-like membrane.
1317. The nucleus is that part of the seed which is contained within the proper integuments, consisting of the albumen with the vitellus, when present, and embryo.
1518. The albumen is an‘organ resembling in its consistence the white of an egg, and forming, in most cases, the exterior portion of the nucleus, but always separable from the interior or remaining portion.
1319. The vitellus is an organ of a fleshy but firm contexture, situated, when present, between the al- bumen and embryo; to the former of which it is attached only by adhesion, but to the latter by incor- poration of substance, so as to be inseparable from it, except by force.
1520. The embryo(a), which is the last and most essential part of the seed and final object of the fructification, as being the germ of the future plant, is a small and often very minute organ, enclosed within the albumen and occupying the centre of the seed.
1321. The cotyledon or seed-lobe(b), is that portion of the embryo that encloses and protects the plant- let, and springs up during the process of germination into what is usually denominated the seminal leaf, if the lobe is solitary; or seminal leaves, if there are more lobes than one. In the former case the seed is said to be monocotyledonous; in the latter case, it is said to be dicotyledonous. Dicotyledonous seeds, which constitute by far the majority of seeds, are well exemplified in the garden-bean. As there are some seeds whose cotyledon consists of one lobe only, falling short of the general number, so there are also a few whose cotyledon is divisible into several lobes, exceeding the general number.‘They have been denominated polycotyledonous seeds, and are exemplified in the case of lepidium sativum or common garden-cress, in which the lobes are six in number; as in that also of the different species of the genus pinus, in which they vary from three to twelve.
1322. The plantlet, or future plant in miniature, is the interior and essential portion of the embryo, and Seat of vegetable life. In some seeds it is so minute as to be scarcely perceptible; while in others it is so large as to be divisible into distinct parts, as in the garden-bean.
_ 1823. The pericarp, which in different species of fruit assumes so many varieties of contexture, acquires its several aspects, not so much from a diversity of substance as of modification.
1324. The valves of the capsule, but particularly the partitions by which it is divided into cells, are com- posed of a thin and skinny membrane, or of an epidermis covering a pulp more or less indurated, and in-
P 3
214 SCIENCE OF AGRICULTURE. Parr If,
terspersed with longitudinal fibres. The capsule of the mosses is composed of a double and net-like mem- brane, enclosed within a fine epidermis.
1325. The pome is composed of a fine but double eptdermis, or, according to Knight, of two skins, enclosing a soit and fleshy pulp, with bundles of longitudinal fibres passing through it, contiguous to, and in the direction of, its longitudinal axis.
1326. The valves of the legume are composed of an epidermis enclosing a firm but fleshy pulp, lined for the most part with a skinny membrane, and of bundles of longitudinal fibres, forming the seam.
1327. The nutshell, whether hard or bony, or flexible and leathery, is composed of a pulp more or less highly indurated, interspersed with longitudinal fibres, and covered with an epidermis.
1328. The drupe is composed of an epidermis enclosing a fleshy pulp, which is sometimes so interwoven with a multiplicity of longitudinal fibres as to seem to consist wholly of threads, as in the cocoa-nut,
1329. The berry is composed of a very fine epidermis enclosing a soft and juicy pulp.
1330, The scales of the strobile are composed of a tough and leathery epidermis, enclosing a spongy but often highly indurated pulp interspersed with longitudinal fibres that pervade also the axis.
1531. The flower-stalk, or peduncle supporting the flower, which is a prolongation of the stem or branch, or rather a partial stem attached to it, if carefully dissected with the assistance of a good glass, will be found to consist of the following several parts:— Ist, An epidermis, or external envelope; 2dly, A paren- chyma, or soft and pulpy mass; 3dly, Bundles of longitudinal threads or fibres, originating in the stem or branch, and passing throughout the whole extent of the parenchyma. The several organs of the flower are merely prolongations of the component parts of the flower-stalk, though each organ does not always contain the whole of such component parts, or at least not under the same modifications. The epidermis, however, and parenchyma are common to them all; but the longitudinal threads or fibres are seldom, if ever, to be found, except in the calyx or corolla.
1332. The leaf-stalk, or petiole supporting the leaf, which is a prolongation of the branch or stem, or rather a partial stem attached to it, exhibits upon dissection the same sort of structure as the peduncle, namely, an epidermis, a pulp or parenchyma, and bundles of longitudinal threads or fibres.
1533. Gems. There exists among the different tribes of vegetables four distinct species of gems, two peculiar to perfect plants, the bud and bulb, and two peculiar to imperfect plants, the propago and gongylus; the latter being denominated simple gems, because furnished with a single envelope only; and the former being denominated compound gems, because furnished with more than a single envelope.
1534. Buds are composed externally of a number of spoon- 335. Bulbs, which are either radical or caulinary, exhibit in
shaped scales overlapping one another, and converging towards a point in the apex, and often cemented together by means of a glutincus or mucilaginous substance exuding from their surface. If these scales are stripped off and dissected under the micros- cope, they will be found to consist, like the leaves or divisions of the calyx, of an epidermis enclosing a pulp interspersed with a net-work of fibres, but unaccompanied with longitudinal threads. If the scales of a leat-bud are taken and stripped off, and the remaining part carefully opened up, it will be found to consist of the rudiments of a young branch terminated by a bunch of incipient leaves imbedded in a white and cottony down, being minute but complete in all their parts and pro- portions, and folded or rolled up in the bud ina peculiar and
their external structure, or in a part of their internal structure that is easily detected, several distinct varieties, some being solid, some coated, and some scaly; but all protruding in the process of vegetation the stem, leaf, and flower, peculiar to their species.
1356. The propago, which is asimple gem, peculiar to some genera of imperfect plants, and exemplified by Gzertner in the lichens, consists of a small and pulpy mass forming a gra- nule of no regular shape, sometimes naked, and sometimes covered with an envelope, which is a fine epidermis,
1337. The gongylus, which is also asimple gem peculiar to some genera of imperfect plants, and exemplified by Gartner in the fuci, consists of a slightly indurated pulp moulded into a
small and globular granule of a firm and solid contexture, and
determinate manner.@ invested with an epidermis.
1338. The caudex includes the whole mass or body both of the trunk and root; its internal structure, like its external aspect or habit, is materially dif- ferent in different tribes of plants.
1339, The first general mode of the internal structure of the caudex is that in which an epidermis encloses merely a homogeneous mass of pulp or slender fibre.‘This is the simplest mode of internal structure existing among vege- tables; it is exemplified in the lower orders of imperfect plants, particularly the alge and fungi.
1540. The second general mode of internal structure of the caudex is that in which an epidermis encloses two or more substances, or assemblages of sub- stances, totally heterogeneous im their character. A very common variety of this mode is that in which an epidermis or bark encloses a soft and pulpy mass, interspersed with a number of longitudinal nerves or fibres, or bundles of fibres, extending from the base to the apex, and disposed in a peculiarity of
996 manner characteristic of a tribe or genus.‘This mode prevails chiefly in herbaceous 7 and annual or biennial plants.(fig. 225.) A second variety of this mode is that in which a strong and often thick bark encloses a circular layer of longitudinal fibres, or several such circular and concentric layers, interwoven with thin transverse and diver- gent layers of pulp, so as to form a firm and compact cylinder, in the centre of which is lodged a pulp or pith. This mode is best exemplified in trees and shrubs( fig. 226.), though it is also applicable to many plants whose texture is chiefly or almost wholly herbaceous, forming as it were the connecting link between such plants as are purely herbaceous on the one hand, and such as are purely woody on the other. In the latter case the wood is perfect; in the former case it is imperfect. The wood being imper- fect in the root of the beet, the common bramble, and burdock; and perfect in the oak or alder.
1541. The appendages of the plant, whether conservative or reproductive, exhibit nothing in their internal structure that is at ald essentially different from that of the organs that have been already described.
Sussecr. 2. Composite Organs. 1342. The composite organs are the epidermis, pulp, pith, cortical layers, ligneous layers, and vegetable fibre, which may be further analysed, as being still compound, with a view to reach the ultimate and elementary organs of the vegetable subject.
1343, Structure of the vegetable epidermis. The epidermis of the vegetable, which, from its resemblance to that of the animal, has been designated by the same name, is the external envelope or integument of the plant, extending over the whole surface, and covering the root, stem, branches, leaves, flower, and fruit, with their appendages; the summit of the.pistil only excepted. But although it is extended over the whole surface of the plant, it is not of equal consistence throughout. In the root and trunk it is a tough and leathery membrane, or it is a crust of considerable thickness, forming a notable portion of the bark, and assuming some peculiar shade of color; while in the leaves, flowers, and tender shoots, it is a fine, colorless, and transparent film, when detached; and when adherent, it is always tinged with some peculiar shade, which it borrows from the parts immediately beneath it. a.%
344. The pulp is a soft and juicy substance, constituting the principal mass of succulent plants, and a notable proportion of many parts even of woody plants. It constitutes the principal mass of many f the fungi and fu i, and of herbaceous plants in general. Mirbel compares it to clusters of small and
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stinouishable int tayers,(Fig, 297. 438, The concen mas of the wood, tion on the surface But though they a ften found to ext authors say the e3 for it by telling us because the south the same effect, compass, by whic extensive forest, sometimes on th ofthe great roots the side of the s side than on the however, on the Hamel, after co found only fourt part, But the| Consistency throu where they are Softest of all, is d other layers eith easily di ouishe 4 tree is barked a) that year, 144. The diverge 4 considerable prop almg st any woody D circle i | DL The structy Layers, which are th ‘Vision, The cone he erent layers ‘Otting up the in 6], The structy rT Peas 8 distinguish IiWhole eXtent, as Tenet Superticially “ttoseope, they mr eile, and fori
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Boox I. INTERNAL STRUCTURE OF PLANTS. 215
iexagonal cells or bladders, containing for the most part acolored juice, and formed apparently of the foldings and doublings of a fine and delicate membrane, in which no traces of organization are to be distinguished. i
1345. The pith is a soft and spongy, but often succulent substance, occupying the centre of the root, stem, and branches, and extending in the direction of their longitu- dinal axis, in which it is enclosed as in a tube.‘The structure of the pith is precisely similar to that of the pulp, being composed of an, assemblage of hexagonal cells con- taining a watery and colorless juice, or of cellular tissues and a parenchyma.
1346. The cortical layers, or interior and concentric layers, constituting the mass of the bark, are situated immediately under the cellular integument, where such integu- ment exists, and where not, immediately under the epidermis; or they are themselves external. They are distinguishable chiefly in the bark of woody plants, but particularly in that of the lime-tree. They are composed of two elementary parts— bundles of longitudinal fibres constituting a network(fig. 227.), and a mass of pulp more or less indurated, filling up the meshes. The innermost of the layers is denominated the liber, and was used by the ancients to write on before the invention of paper. It is the finest and most delicate of them all, and often most beautifully reticulated (fig. 228 a), and varied by bundles of longitudinal fibre(4). But the liber of daphne lagetto is remarkable bevond that of all other plants for the beauty and delicacy of its network, 2998 which is not inferior to that of the finest lace, and at the same time so very soft and flexible that in countries of which the tree is a native the lace of the liber is often made to supply the place of a neckcloth. If the cortical layers are injured or destroyed by accident, the part destroyed is again regenerated, and the wound healed up without a scar; but if the wound penetrates beyond the liber, the part destroyed is no longer regenerated. Or if a tree is bent so as to break part of the cortical fibres, and then propped up in its former position, the fractured fibres will again unite. Or if a portion of the stem is entirely decorticated and covered with a piece of bark, even from another tree, the two different barks will unite. Hence the practicability of ascertaining how far the liber extends. And hence also the origin of grafting, which is always effected by a union of the liber of the graft and stock.
1347. The ligneous layers, or layers constituting the wood, occupy the intermediate portion of the stem between the bark and pith; and are distinguishable into two different sorts,—concentric layers and divergent fJayers.(Fig. 227.)
1348. The concentric layers, which constitute by far the greater part of the mass of the wood, are suttficiently conspicuous for the purpose of exemplifica-\! tion on the surface of a horizontal section of most trunks or branches, as on that of the oak and elm, 3ut though they are generally described as being concentric, they are not always strictly so. For they are often found to extend more on the one side of the axis of the stem or branch, than on the other. Some authors say the excess is on the north side, but others say it is on the south side. The former account for it by telling us it is because the north side is sheltered from the sun; and the latter by telling us it is because the south side is sheltered from the cold; and thus from the operation of contrary causes alleging the same effect, which has been also thought to be sufficiently striking and uniform to serve as a sort of compass, by which the bewildered traveller might safely steer his course, even in the recesses of the most extensive forest. But Du Hamel has exposed the futility of this notion, by showing that the excess is sometimes on the one side of the axis, and sometimes on the other, according to the accidental situation of the great roots and branches; a thick root or branch producing a proportionably thick layer of wood on the side of the stem from which it issues. The layers are indeed sometimes more in number on the one side than on the other, as well as thicker. But this is the exception, andnot the rule. They are thickest, however, on the side on which they are fewest, though not of the same thickness throughout. Du Hamel, after counting twenty layers on the one side of the transverse section of the trunk of an oak, found only fourteen on the other. But the fourteenth exceeded the twenty in thickness by one fourth part. But the layers thus discoverable on the horizontal section of the trunk are not all of an equal consistency throughout, there being an evident diminution in their degree of solidity from the centre, where they are hardest, to the circumference, where they are softest. The outermost layer, which is the softest of all, is denominated the alburnum, perhaps from its being of a brighter white than any of the other layers, either of wood or bark; from which character, as well as from its softer texture, it is also easily distinguished. It does not acquire its utmost degree of solidity till after a number of years; but if a tree is barked a year before it is cut down, then the alburnum is converted into wood in the course of that year.
1349. The divergent layers which intersect the concentric layers in a transverse direction, constitute also a considerable proportion of the wood, as may be seen in a horizontal section of the fir or birch, or ot almost any woody plant, on the surface of which they present an appearance like that of the radii of a circle.
1350. The structure of the concentric layers will be found to consist of several smaller and component layers, which are themselves composed of layers smaller still, till at last they are incapable of farther division. The concentric layers are composed of longitudinal fibres, generally forming a network; and the divergent layers, of parallel threads or fibres of cellular tissue, extending in a transverse direction, and filling up the interstices of the network.
1351, The structure of the stem in plants that are purely herbaceous, and in the herbaceous parts of woody plants, is distinguished by a number of notable and often insulated fibres passing longitudinally throughout its whole extent, as in the stipe of apsidium filix mass, or leaf-stalk of the alder. These fibres, when viewed superficially, appear to be merely individuals, but when inspected‘minutely, and under the microscope, they prove to be groups or bundles of fibres smaller and minuter still, firmly cemented together, and forming in the aggregate a strong and elastic thread, but capable of being split into a number of component fibres, till at last you can divide them no longer.’ If the fibres of the bark are separated by the destruction of a part, the part is again regenerated, and the fibres are again united, without leaving behind them any traces of a wound. But if the fibres of the wood are separated by the destruction of a part, the part is never regenerated, and the fibres are never united.
Sussecr. 3. Elementary or Vascular Organs.
1352. Fibre, cellular tissue with or without parenchyma, and reticulated membrane, are the ultimate and elementary organs of which the whole mass of the plant is composed. If it is asked of what the elementary organs are themselves composed, the reply is, they are composed, as appears from the same analysis, of a fine, colorless, and transparent membrane, in which the eye, aided by the assistance even of the best glasses, can discover no traces whatever of organisation; which membrane we must also regard as constituting the ultimate and fundamental fabric of the elementary organs themselves, and, by conse- quence, of the whole of the vegetable body. It has been asked by some phytologists
ies
—E-—
=——
SS a x
216 SCIENCE OF AGRICULTURE. Part IT.
whether or not plants are furnished with vessels analogous to the blood-vessels of the animal system. But if it is admitted that plants contain fluids in motion, which cannot possibly be denied, it will follow, as an unavoidable consequence, that they are furnished with vessels conducting or containing such fluids. If the stem of a plant of marigold is divided by means of a transverse section, the divided extremities of the longitudinal fibres, arranged in a circular row immediately within the bark, will be distinctly perceived, and their tubular structure demonstrated by means of the orifices which they present, particu- larly when the stem has begun to wither. Regarding it, therefore, as certain that plants are furnished with longitudinal tubes, as well as with cells or utricles for the purpose of conveying or containing their alimentary juices, we proceed to the specific illustration of both, together with their peculiarities and appendages.
1353. The utricles are the fine and membranous vessels constituting the cellular tissue of the pith and pulp already described, whether of the plant, flower, or fruit. Individually they resemble oblong bladders inflated in the middle, as in the case of some plants; or circular or hexagonal cells, as in the case of others. Collectively they have been compared to an assemblage of threads of contiguous bladders, or vesicles, or to the bubbles that are found on the surface of liquor in a state of fermentation.
1354. The tubes are the vessels formed by the cavities of the longitudinal fibres, whether as occurring in the stem of herbaceous plants, or in the foot-stalk of the leaf and flower, or in the composition of the cortical and ligneous layers, or by longitudinal openings pervading the pulp itself, as in the case of the vine.
1555. The large tubes are tubes distinguishable by the 999 superior width of the diameter which they present on the horizontal section of the several parts of the plant.
1356. Simple tubes( fig.229.) are the largest of all the large tubes, and are tormed of a thin and entire mem- brane, without any perceptible disruption of con- tinuity, and are found chiefly in the bark, though not confined to it, as they are to be met with also in the alburnum and matured wood, as well as in the fibres of herbaceous plants.
1357. Porous tubes resemble the simple tubes in their general aspect; but differ from them in being pierced with small holes or pores, which are often distributed in regular and parallel rows. They are found in most abundance in woody plants, and particularly in wood that is firm and compact, like that of the oak; but they do not, like the simple tubes, seem destined to contain any oily or resinous juice. to the stem of the grasses, which is formed of several
1358. Spiral tubes are fine, transparent, and thread-& internodia,. separated iby transverse diaphragms; and like substances, occasionally interspersed with the other collectively to a united assemblage of parallel and collateral tubes of the, plant, but distinguished from them by being reeds.
twisted from right to left, or from left to right, in the form of a corkscrew. They occur in most abundance in herbaceous plants, particularly in aquatics.
1359, False spiral tubes are tubes apparently spiral on a slight inspection, but which, upon minute examination, are found to derive their appearance merely from their being cut transversely by parallel fissures.
1560. Miaed tubes are tubes combining in one in- dividual two or more of the foregoing varieties. Mirbel exemplifies them in the case of the butomus umbellatus, in which the porous tubes, spiral tubes, and false spiral tubes, are often to be met with united in one.
1361. The small tubes are tubes composed of a succes- sion of elongated cells united, like those of the cellular tissue. Individually they may be compared
1362. Pores are small and minute openings of various shapes and dimensions, that seem to be destined to the absorption, transmission, or exaltation of fluids, They are distinguishable into perceptible pores and imperceptible pores.
1363. Gaps, according to Mirbel, are empty, but often regular and symmetrical spaces formed in the in- terior of the plant by means of a partial disruption of the membrane constituting the tubes or utricles. In the leaves of herbaceous plants the gaps are often interrupted by transverse diaphragms formed of a portion of the cellular tissue which still remains entire, as may be seen in the transparent structure of the leaves of typha and many other plants. Transverse gaps are said to be observable also in the bark of some plants, though very rarely.
1364. There are various appendages connected with the elementary organs, such as internal glands, internal pubescence,&c.: the latter occurs in dissecting the leaf or flower-stalk of nymphzea lutea.
~~ ere
Cuar. III.
Vegetable Chemistry, or Primary Principles of Plants.
1365. As plants are not merely organized beings, but beings endowed with a species of life, absorbing nourishment from the soil in which they grow, and assimilating it to their own substance by means of the functions and operations of their different organs, it is plain that no progress can be made in the explication of the phenomena of vegetable life, and no distinct conception formed of the rationale of vegetation, without some specific knowledge of the primary principles of vegetables, and of their mutual action upon one another. The latter requisite presupposes a competent acquaintance with the elements of chemistry; and the former points out the necessity of a strict and scrupu- lous analysis of the several compound ingredients constituting the fabric of the plant, or contained within it. If the object of the experimenter is merely that of extracting such compound ingredients as may be known to exist in the plant, the necessary appara- tus is simple, and the process easy. But if it is that of ascertaining the primary and radical principles of which the compound ingredients are themselves composed, the apparatus is then complicated, and the process extremely difficult, requiring much time and labor, and much previous practice in analytical research. But whatever may be the object of analysis, or particular view of the experimenter, the processes which he employs are either mechanical or chemical.
1566. The mechanical processes are such as are affected by the agency of mechanical powers, and are often indeed the operation of natural causes; hence the origin of gums and other spontaneous exudations. But the substances thus obtained do not always flow sufficiently fast to satisfy the wants or necessities of man, And men have consequently contrived to accelerate the operations of nature by means of artificial aid in the application of the wimble or axe, widening the passages which the extravasated fluid has forced, or opening up new ones, But it more frequently happens that the process employed is wholly
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13k The uses food, and is high calico-printing, M them from sprea very well adapte mixtures, in Wh
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Boox I. VEGETABLE CHEMISTRY. 217
artificial, and altogether effected without the operation of natural causes. When the juices are enclosed in vesicles lodged in parts that are isolated, or may easily be isolated, the vesicles may be opened by means of rasps or graters, and the juices expressed by the hand, or by some other fit instrument. Thus the volatile oil may be obtained that is lodged in the rind of the lemon, When the substance to be extracted lies more deeply concealed in the plant, or in parts which cannot be easily detached from the rest, it may then become necessary to pound or bruise the whole, or a great part of the plant, and to subject it, thus modified, to the action of the press. Thus seeds are sometimes treated to express their essential oils. And if by the action of bruising or pressing heterogeneous ingredients have been mixed together, they may generally be separated with considerable accuracy by means of decantation, when the substances held in suspension have been precipitated. Thus the acid of lemons, oranges, gooseberries, and other fruits, may be obtained in considerable purity, when the mucilage that was mixed with them has subsided.
1367. The chemical processes are such as are affected by the agency of chemical powers, and may be reduced to the following: distillation, combustion, the action of water, the action of acids and alkalies, the action of oils and alcohols, and lastly fermentation. They are much more intricate in their nature than the mechanical processes, as well as more difficult in their application.
1368. Of the products of vegetable analysis, as obtained by the foregoing processes, some consist of several heterogeneous substances, and are consequently compound, as being capable of further decompositien; and some consist of one individual substance only, and are consequently simple, as being incapable of further decomposition.
Sect. I. Compound Products.
1369. The compound products of analysis are very numerous in themselves, and much diversified in their qualities. They are gum, sugar, starch, gluten, albumen, fibrina, extract, tannin, coloring matter, bitter principle, narcotic principle, acids, oils, wax, resins, gum resins, balsams, camphor, caoutchouc, cork, woody fibre, sap, proper juice, charcoal, ashes, alkalies, earths, metallic oxides.
1370. Gum is an exudation that issues spontaneously from the surface of a variety of plants in the state of a clear, viscid, and tasteless fluid, that gradually hardens upon being exposed to the action of the atmosphere, and condenses into a solid mass. It issues copiously from many fruit-trees, but especially from such as produce stone-fruit, as the plum and cherry-tree. From plants or parts of plants containing it, but not discharging it by spontaneous exudation, it may be obtained by the process of maceration in water.
1371. The uses of gum are considerable. In all its varieties it is capable of being used as an article of food, and is highly nutritive, though not very palatable. It is also employed in the arts, particularly in calico-printing, in which the printer makes choice of it to give consistency to his colors, and to prevent them from spreading. The botanist often uses it to fix his specimens upon paper, for which purpose it is very well adapted. It forms likewise an ingredient in ink; and in medicine it forms the basis of many mixtures, in which its influence is sedative and emollient.
1372. Sugar is the produce of the saccharum officinarum. The canes or stems of the plant, when ripe, are bruised between the rollers of a mill, and the expressed juice is collected and put into large boilers, in which it is mixed with a small quantity of quicklime, or strong ley of ashes, to neutralise its acid, and is then made to boil. The scum which gathers on the top during the process of boiling is carefully cleared away; and when the juice has been boiled down to the consistence of a syrup, it is drawn off and allowed to cool in vessels which are placed above a cistern, and perforated with small holes, through which the impure and liquid part, known by the name of molasses, escapes; while the remaining part is converted into a mass of small and hard granules of a brownish or whitish color, known by the designation of raw sugar, which when imported into Europe is further purified by an additional process, and converted by filtration or crystallization into what is called loaf sugar, or refined sugar, or candied sugar. The juice of the acer saccharinum, or American maple, yields sugar in such considerable abundance as to make it an object with the North American farmer to manufacture it for his own use. A hole is bored in the trunk of the vegetating tree early in the spring, for the purpose of extracting the sap; of which a tree of ordi- nary size, that is, of from two to three feet in diameter, will yield from one hundred and fifty to two hundred pints and upwards, in a good season. The sap, when thus obtained and neutralised by lime, deposits, by evaporation, crystals of sugar in the proportion of about a pound of sugar to forty pints of sap. It is not materially different in its properties from that of the sugar-cane. The juice of the grape, when ripe, yields also a sugar by evaporation and the action of pot-ashes, which is known by the appella- tion of the sugar of grapes, and has been lately employed in France substitute for colonial sugar, though it is not so sweet or agreeable to the taste. The root of beta vulgaris, or common beet, yields also, by boiling and evaporation, a sugar which is distinguished by a peculiar and slightly bitter taste, owing perhaps to the presence of a bitter extractive matter which has been found to be one of the con- stituents of the beet. Sugar has been extracted from the following vegetables also, or from their produc- tions: from the sap of the birch, sycamore, bamboo, maize, parsnep, cow-parsnep, American aloe, dulse, walnut-tree, and cocoa-nut-tree; from the fruit of the common arbutus, and other sweet-tasted fruits; from the roots of the turnip, carrot, and parsley; from the flower of the euxine rhododendron; and from the nectary of most other flowers.
1373. The utility of sugar, as an aliment, is well known; and it is as much relished by many animals as by man. By beesit is sipped from the flowers of plants, under the moditication of nectar, and con- verted into honey; and also seems to be relished by many insects, even in its concrete state; as it is also by many birds. By man itis now regarded as being altogether indispensable, and though used chiefly to give a relish or seasoning to food, is itself highly nutritive. It is alsoof much utility in medicine, and celebrated for its anodyne and antiseptic qualities, as well as thought to be peculiarly efficacious in pre- venting diseases by worms.
1374. Starch. Ifa quantity of wheaten flour is made intoa paste with water, and kneaded and washed under the action of a jet, till the water runs off colorless, part of it will be found to have been taken up and to be still held in suspension by the water, which will, by-and-by, deposit a sediment that may be separated by decantation. This sediment is starch, which may be obtained also immediately from the grain itself, by means of a process well known to the manufacturer, who renders it finally fit for the market by washing and edulcorating it with water, and afterwards drying it by a moderate heat. Starch, when thrown upon red-hot iron, burns with a kind of explosion, and leaves scarcely any residuum behind. It has been found by the analysis of Gay Lussac and Thenard, to be composed of carbon 43°55; oxygen 49°68; hydrogen 6°77; total 100°. This result is not very widely different from that of the analysis of sugar, into which, it seems, starch may be converted by diminishing the proportion of its carbon, and increasing that of its oxygen and hydrogen. This change is exemplified in the case of the malting of barley, which contains a great proportion of starch, and which absorbs during the process a quantity of oxygen, and evolves a quantity of carbonic acid; and accordingly part of it is converted into sugar Perhaps it is exemplified also in the case of the freezing of potatoes, which acquire in consequence a sweet and sugary taste, and are known to contain a great deal of starch, which may be obtained as follows: let the potatoes be taken and grated down to a pulp, and the pulp placed upon a fine sieve, and water made to pass through it: the water will be found to have carried off with it an infinite number of particles,
218 SCIENCE OF AGRICULTURE. Parr II.
which it will afterwards deposit in the form of a fine powder, separable by decantation; which powder is starch, possessing all the essential properties of wheaten starch. It may be obtained from the pith of several species of palms growing in the Moluccas and several other East India islands, by the following process: the stem, being first cut into pieces of five or six feet in length, is split longitudinally so as to expose the pith, which is now taken out and pounded, and mixed with cold water, which after being well stirred up, deposits at length a sediment that is separated by decantation, and is the starch which the pith contained, or the sago of the shops.
1575. Salop is also a species of starch that is prepared, in the countries of the East, from the root of the orchis morio, mascula, bifolio, and pyramidalis, and in the isle of Portland, from the arum maculatum. So also is cassava, which is prepared from the root of Jatropha manihot, a native of America, the ex- pressed juice of which is a deadly poison, used by the Indians to poison their arrows; but the sediment which it deposits is a starch that is manufactured into bread, retaining nothing of the deleterious pro- perty of the juice; and so also is sowans, which is prepared from the husk of oats, as obtained in the process of grinding.
1376. Starch may be extracted from a number of plants; as arctium lappa, atropa belladonna, polygo. num bistorta, bryonia alba, colchicum autumnale, spirza filipendula, ranunculus bulbosus, scrophularia nodosa, sambucus ebulus and nigra, orchis morio and mascula, imperatoria ostruthium, hyoscyamus niger, rumex obtusifolius, acutus, and aquaticus, arum maculatum, iris pseudacorus and fcetidissima, orobus tuberosus, bunium bulbocastanum. It is found also in the following seeds: wheat, barley, oats, rice, maize, millet-seed, chestmut, horse-chestnut, peas, beans, acorns.
1377. Starch ts an extremely nutritive substance, and torms one of the principal ingredients in almost all articles ot vegetable food used, whether by man or the inferior animals. The latter feed upon it in the state in which nature presents it; but man prepares and purifies it so as to render it pleasing to his taste, and uses it under the various modifications of bread, pastry, or confectionery. Its utility is also consider. able in medicine and in the arts; in the preparation of anodyne and strengthening medicaments, and in the composition of cements; in the clearing and stiffening of linen; and in the manufacture of hair- powder.
1378. Gluten is that part of the paste formed from the flour of wheat that remains unaffected by the water after all the starch contained in it has been washed off. It is atough and elastic substance, of a dull white color, without taste, but of a very peculiar smell. It is soluble in the acids and alkalies, but insoluble in water and in alcohol. Gluten has been detected, under one modification or other, in a very considerable number of vegetables or vegetable substances, as well as in the flour of wheat.
1379. Gluten is one of the most important of all vegetable substances, as being the principle that renders the flour of wheat so fit for forming bread, by its occasioning the panary fermentation, and making the bread light and porous. It is used also as a cement, and capable of being used as a varnish, and a ground for paint.
1380, Albumen, which is a thick, glary, and tasteless fluid, resembling the white of an unboiled ege, isa substance that has been but lately proved to exist in the vegetable kingdom. Its existence was first an- nounced by Fourcroy, and finally demonstrated by the experiments of Vauquelin on the dried juice of the papaw-tree. It is nearly related to animal gluten.
1381. Fibrina is a peculiar substance which chemists extract from the blood and muscles of animals. This substance constitutes the fibrous parts of the muscles, and resembles gluten in its appearance and elasticity. A substance possessing the same properties has been detected by Vauquelin in the juice of the papaw- tree, which is called vegetable fibrina.
1582. Extract. When vegetable substances are macerated in water, a considerable portion of them is dissolved; and if the water is again evaporated, the substance held in solution may be obtained in a sepa- rate state. This substance is denominated extract. But it is evident that extract thus obtained will not be precisely the same principle in every different plant, but will vary in its character according to the species producing it, or the soil in which the plant has grown, or some other accidental cause. Its dis- tinguishing properties are the following:— it is soluble in water as it is obtained from the vegetable, but becomes afterwards insoluble in consequence of the absorption of oxygen from the atmosphere. It is solu- ble in alcohol; and it unites with alkalies, and forms compounds which are soluble in water. When distilled it yields an acid fluid impregnated with ammonia, and seems to be composed principally of hydro- gen, oxygen, carbon, and a little nitrogen. Extract, or the extractive principle, is found in a greater or less proportion in almost all plants whatever, and is very generally an ingredient of the sap and bark, particularly in barks of an astringent taste. But still it is not exactly the same in all individual plants, even when separated as much as possible from extraneous substances. It may therefore, be regarded as constituting several different species, of which the following are the most remarkable:
1383. Extract of catechu. This extract is obtained from an 1385. Extract of quinquina. This extract was obtained by infusion of the wood or powder of catechu in cold water. Its Fourcroy, by evaporating a decoction of the bark of the quin- color is pale brown; and its taste slightly astringent. It is quina of St. Domingo in water, and again dissolving it in precipitated from its solution by nitrate of lead, and yields by alcohol, which finally deposited by evaporation the peculiar distillation carbonic and carburetted hydrogen gas, leaving a extractive. It is insoluble in cold water, but very soluble in
porous charcoal. boiling water; its color is brown, and its taste bitter. It is 1384. Extract of senna. This extract is obtained from an in- precipitated from its solution by lime water, in the form of a
fusion of the dried leaves of cassia senna in alcohol. The color red powder; and when dry it is black and brittle, breaking of the infusion is brownish, the taste slightly bitter, and the with a polished fracture.
smell aromatic. It is precipitated from its solution by the 1586. Extract of.saffron. This extract is obtained in great muriatic and oxymuriatic acids; and when thrown on burning—_ abundance from the summits of the pistils of crocus sativus, coals consumes, with a thick smoke and aromatic odor, leaving which are almost wholly soluble in water.
behind a spongy charcoal.
1387. Extracts were formerly much employed in medicine though their efficacy seems to have been overrated. But a circumstance of much more importance to society is that of their utility in the art of dyeing. By far the greater part of colors used in dyeing are obtained from vegetable extracts, which have a strong affinity to the fibres of cotton or linen, with which they enter into a combination that is rendered still stronger by the intervention of mordants.
1388. Coloring matter. The beauty and variety of the coloring of vegetables, chemists have ascribed to the modifications of a peculiar substance which they denominate the coloring principle, and which they have accordingly endeavored to isolate and extract;_tirst, by means of maceration or boiling in water, and then by precipitating it from its solution. The chemical properties of coloring matter seem to be as yet but imperfectly known, though they have been considerably elucidated by the investigations of Ber- tholet, Chaptal, and others. Its affinities to oxygen, alkalies, earths, metallic oxides, and cloths fabri- cated, whether of animal or vegetable substances, such as wool or flax, seem to be among its most striking characteristics. But its affinity to animal substances is stronger than its affinity to vegetable substances; and hence wool and silk assume a deeper dye, and retain it longer than cotton or linen. Coloring matter exhibits a great variety of different tints, as it occurs in different species of plants; and as it combines with oxygen, which it absorbs from the atmosphere, it assumes a deeper shade; but it loses at the same time a portion of its hydrogen, and becomes insoluble in water; and thus it indicates its relation to ex- tract. Fourcroy reduced colors to the four following sorts 3 extractive colors, oxygenated colors, carbo- nated colors, and hydrogenated colors; the first being soluble in water, and requiring the aid of saline or metallic mordants to fix them-upon cloth; the second being insoluble in water, as altered by the absorp- tion of oxygen, and requiring no mordant to fix them upon cloth; the third containing in their compo- sition 4 great proportion of carbon, but soluble in alkalies; and the fourth containing a great proportion of resin, but soluble in oils and alcohol, But the simplest mode of arrangement is that by which the dif-
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Boox I.“VEGETABLE CHEMISTRY, 219
ferent species of coloring matter are classed according to their effect in the art of dyeing. The principal and fundamental colors in this art are the blue, the red, the yellow, and the brown.
1389. The finest of all vegetable blues is that which isknownby blue by the action of the atmosphere. The blue color of in the name of indigo. It isthe produce of the indigofera tinctoria, digo, therefore, is owing to its combination with oxygen. Lin., a shrub which is cultivated for the sake of the dye it 1590. The principal red colors are such as are found to exist attords, in Mexico and the East Indies. The plant reaches in the root, stem, or flower, of the five following plants: rubia maturity in about six months, when its leaves are gathered_ tinctorum, lichen, roccella and parellus, carthamus tinctorius, and immersed in vessels filled with water till fermentation— ceesalpinia crista, and haematoxylon campechianum.
takes place.‘The water then becomes opaque and green, ex- 1391. Yellow, which is a color of very frequent occurrence haling an odor like that of volatile alkali, and evolving bubbles among vegetables, and the most permanent among flowers, is of carbonic acid gas) When the fermentation has been con- extracted for the purpose of dyeing, from a variety of plants.
tinued long enough, the liquid is decanted and put into other It is extracted from the reseda luteola, Lin., by the decoction of vessels, where it is agitated till blue flakes begin to appear. its dried stems. The coloring matter is precipitated by Water is now poured in, and flakes are precipitated in the means of alum, and is much used in dyeing wool, silk, and form of a blue powdery sediment, which is obtained by de- cotton. It is also obtained from the morus tinctoria, bixa cantation; and which, after being made up into small lumps_ orellana or arnotta, serratula tinctoria, genista tinctoria, rhus and dried in the shade, is the indigo of the shops. It is insolu- cotius, rhamnus infectorius, and quercus tinctoria, or quer- ble in water, though slightly soluble in alcohol. But its true citron, the bark‘ef which last affords a rich and permanent solvent is sulphuric acid, with which it forms a fine blue dye, yellow that is at present much in use.
known by the name of liquid blue. It affords by distillation 1392. The brown coloring matter of vegetables is very abundant, carbonic acid gas, water, ammonia, some oily and acid matter, particularly in astringent plants. It is obtained from the root and much charcoal; whence its constituent principles are of the walnut-tree, and rind of the walnut; as also from the most probably carbon, hydrogen, oxygen, and nitrogen. sumac and alder, but chiefly from nut-galls, which are ex- Indigo may be procured also from several other plants besides formed upon the leaves of a species of quercus, indigofera tinctoria, and particularly from isatis tinctoria or indigenous to the south of Europe, in consequence of the punc- woad, a plant indigenous to Britain, and thought tobe the ture of insects. The best in quality are brought from the plant with the juice of which the ancient Britons stained their Levant. They are sharp and bitter to the taste, and extremely naked bodies, to make them look terrible to their enemies. If astringent; and soluble in water by decoction when ground or this plant is digested in alcohol, and the solution evaporated, grated toa powder. The decoction strikes, with the solution white crystalline grains, somewhat resembling starch, will be_ of iron, a deep black, that forms the basis of ink, and of most jeft behind; which grains are indigo, becoming gradually dark colors used in dyeing cloths.
1393. Tannin. Ifa quantity of pounded nut-galls, or bruised seeds of the grape, is taken and dissolved in cold water, and the solution evaporated to dryness, there will be left behind a brittle and yellowish sub- stance of a highly astringent taste, which substance is tannin, or the tanning principle. It 1s soluble both in water and alcohol, but insoluble in ether. With the salts of iron it strikes a black. And when a so- lution of gelatine is mixed with an aqueous solution of tannin, the tannin and gelatine fall down in com- bination, and form an insoluble precipitate. When tannin is subjected to the process of distillation, it yields charcoal, carbonic acid, and inflammable gases, with a minute quantity of volatile alkali, and seems accordingly to consist of the same elements with extract, from which, however, it is distinguished by the peculiar property of its action upon gelatine.‘Tannin may be obtained from a great variety of other vege- tables also, as well as those already enumerated, but chiefly from their bark; and of barks, chiefly from those that are astringent to the taste. The following table exhibits a general view of the relative value of different species of bark, as ascertained by Sir Humphry Davy. It gives the average obtained from 480lb. of the entire bark of a middle-sized tree of the several different species, taken in the spring, when the quantity of tannin is the largest.
lb. tb. ib.
Oak-.-- 29| Beech--=- 10| Black thom--= 16
Spanish chestnut-- 21| Horse-chestnut--- 9| Coppice oak---= 32
Leicester willow(large)- 33| Sycamore---=< Al| Inner rind of oak-bark-= 72
5--- 13| Lombardy poplar--- 15} Oak cut in autumn-== il
Common willow(large)- 11| Birch---- 8| Larch cut in autumn~- aS Ash---- 16| Hazel-== o 31k
1394. Tannin is of the very first utility in its application to medicine and the arts; being regarded by chemists as the general principle of astringency. The medical virtues of Peruvian bark, so celebrated as a febrifuge and antiseptic, are supposed to depend upon the quantity and quality of its tannin. In conse- quence of its peculiar property of forming an insoluble compound with gelatine, the hides of animals are converted into leather, by the important art of tanning. The bark of the oak-tree, which contains tannin in great abundance, is that which is most generally used by the tanner. The hides to be tanned are pre- pared for the process by steeping them in lime-water, and scraping off the hair and cuticle. They are then soaked, first in weaker and afterwards in stronger infusions of the bark, till at last they are completely impregnated. This process requires a period of from ten to eighteen months, if the hides are thick; and four or five pounds of bark are necessary on an average to form one pound of leather.
1395. Bitter principle. The taste of many vegetables, such as those employed in medicine, is extremely bitter. The quassia of the shops, the roots of the common gentian, the bark and wood of common broom, the calyx and floral leaves of the hop, and the leaves and flowers of chamomile, may be quoted as ex- amples. This bitter taste has been thought to be owing to the presence of a peculiar substance, different from every other vegetable substance, and has been distinguished by the name of the bitter principle. When water has been digested for some time over quassia, its color becomes yellow, and its taste in- tensely bitter; and if it is evaporated to dryness, it leaves behind a substance of a brownish yellow, with a slight degree of transparency, that continues for a time ductile, but becomes afterwards brittle. This substance Dr. Thomson regards as the bitter principle in a state of purity. It is soluble in water and in alcohol; but the solution is not much affected by re-agents. Nitrate of silver and acetate of lead are the only two that occasion a precipitate. The bitter principle is of great importance, not only in the practice of medicine, but also in the art of brewing; its influence being that of checking fermentation, preserving the fermented liquor, and when the bitter of the hop is used, communicating a peculiar and agreeable flavor. The bitter principle appears to consist principally of carbon, hydrogen, and oxygen, with a little nitrogen.
1396. Narcotic principle. There is a species of medical preparations known by the name of narcotics, which have the property of inducing sleep; and if administered in large doses, of occasioning death. They are obtained from the milky and proper juices of some vegetables, and from the infusion of the leaves or stem of others, all which have been supposed to contain in their composition some common in- gredient, which chemists have agreed to designate by the name of the narcotic principle. It exists in great abundance in opium, which is the concrete juice of papaver album, or the white poppy, from which it is obtained pure, in the form of white crystals. It is soluble in boiling water and in alcohol, as well as in all acid menstrua; and it appears that the action of opium on the animal subject depends on this prin- ciple. When distilled it emits white vapors, which are condensed into a yellow oil. Some water and carbonate of ammonia pass into a receiver; and at last carbonic acid gas, ammonia, and carburetted hydrogen, are disengaged, and a bulky charcoal left behind. Many other vegetable substances besides opium possess narcotic qualities though they have not yet been minutely analysed.‘The following are the most remarkable:— the inspissated juice of lettuce, which resembles opium much in its appearance, is obtained by the same means, and possesses the same medical virtues; the leaves of atropa belladonna, or deadly nightshade, and indeed the whole plant; the leaves of digitalis purpurea, or foxglove; and lastly, the following plants, hyoscyamus niger, conium maculatum, datura stramonium, and sedum palustre, with many others belonging to the Linnzan natural order of Luride.
1597. Acids. Acids are a class of substances that may be distinguished by their exciting on the palate ‘the sensation of sourness. They€xist, not only in the animal and mineral, but also in the vegetable kingdom; and such of them as are peculiar to vegetables have been denominated vegetable acids. Of acids peculiar to vegetables chemists enumerate the following:—the oxalic, acetic, citric, malic, gallic, tartaric, benzoic, and prussic, which exist ready formed in the puices or organs of the plant, and are ac-
es
——— ee
(rem
a:
or
220 SCIENCE OF AGRICULTURE.
Parr If.
cordingly denominated native acids; together with the mucous, pyromucous, pyrotartarous, pyrolignous,
camphoric, and suberic, which do not exist ready ficial acids. They are consequently not within the
1398. Oxalic acid. If the expressed juice of the oxalis aceto- sella is left to evaporate slowly, it deposits small crystals ofa yellowish color and saltish taste, which are known by the name of the acidulum of sorrel, that is, a salt with excess of acid, from which the acid may be obtained pure by processes well known to the chemist. It is not used in medicine or the‘arts, except in its state of acidulum, in which it is em- ployed to make a sort of lemonade, and to discharge stains of ink. It has been found also in oxalis corniculata, geranium acidum, in the several species of rumex, and in the pubescence of cicer arietinum.
599. Acetic acid. The acetic acid, or vinegar, which is ge- nerally manufactured from wine in a certain stage of ferment- ation, has been found also ready formed in the sap of several trees, as analysed by Vauquelin; and also in the acid juice of the cicer arietinum, of which it forms a constituent part. 1t was obtained also by Scheele from the sap of the sambucus nigra; and is consequently to be regarded as a native vegetable acid. It is distinguished from other vegetable acids by its forming soluble salts with the alkalies and earths,
400. Citric acid. Citric acid is the‘acid that exists in the juice of lemon. Its taste is very sour in a state of purity, but ex- ceedingly pleasant when diluted with water. By a red heat it yields carbonic acid gas and carbonated“hydrogene gas, and is reduced to a charcoal; nitric acid converts it into oxalic and acetic acid, and with lime it forms a salt insoluble in water. It has been found unmixed with other acids in the followin vegetable substances: in the juice of oranges and lemons, and in the berries of vaccinium oxycoccus, and vitis idea, prunus padus, solanum dulcamara, and rosa canina. It has been found also in many other fruits, mixed with other acids.
1401. Malic acid. Malicacid is found chiefly in'the juice of unripe apples, whence it derives its name. But it is found also in the juice of barberries, alderberries, gooseberries, plums, and comnion house-leek.
£02. Gallic acid. Gallic acid, as it is obtained in the greatest abundance, so it derives its name from the nut-gall, from which it may be extracted by exposing a quantity of the powder of nut-galls to a moderate heat im a glass retort; and the acid will sublime and form crystals of an octahedral figure. Its taste is austere and astringent. It strongly reddens vegetable
formed in the plant, and are hence denominated arti- scope of the object of the present work.
blues. It is soluble both in water and alcohol 3 and is distin- guished by its property of communicating to solutions of iron adeep purple color. When exposed to a gentle heat it sub- limes without alteration, but a strong heat decomposes it. Nitric acid conyerts it into the malic and oxalic acids. It is of ee utility in the art of dyeing, and forms the basis of all
lack colors, and of colors with a dark ground. It forms also the basis of ink; and chemists use it as a test to detect the presence of iron.
1405. Tartaric acid. If wine is kept for a length of time ina cask or other close vessel, a sediment is precipitated which adheres to the sides or bottom, and forms a crust known by the name of tartar, which is a combination of potass and a pecu- liar acid in excess. The compound is tartarite of potass, and the acid, in its state of purity, is the tartaric acid. It is cha- racterised by the property of its forming with potass a salt that is soluble with difficulty. It has been found in the following vegetable substances also: in the pulp of tamarinds, in the juice of the grape, and mulberries, sorrel, and sumac, and the roots of triticum repens, and leontodon taraxacum.— It is not much used except among chemists. But the tartarite from which it is usually obtained is well known for its medical virtues under the name of cream of tartar.
1404. Benzoic acid. From the styrax benzoin there exudes a re- sinous substance, known in the shops by the name of benzoin, and in which the benzoic acid is contained. It is distinguished from the other acids by the aromatic odor and extreme volati- lity. It has been obtained also from the balsams of tolu and storax; and is used in pharmacy, in the preparation of boluses and electuaries.
1405. Prussic acid. The prussic acid is generally classed among the animal acids, because it is obtained in the greatest abundance from animal substances. But it has been proved to exist in vegetable substances also, and it is procured by dis- tilling laurel leaves, or the kernels of the peach and cherry, or bitter.almonds. When pure it exists in the form of Colorless fluid, with an odor resembling that of peach-tree blossoms. It does not redden vegetable blues. But it is characterised by its property of forming a bluish-green precipitate, when it is poured, with a little alkali added to it, into solutions containing iron.
1406. All vegetable acids contain carbon, oxygen, and hydrogen, in one proportion or other; and the prussic acid contains also a portion of nitrogen.‘The gallic acid contains more of carbon than any other
vegetable acid, and the oxalic more of oxygen.
1407. Vegetable oils are of two kinds, the fixed and the volatile. The former are not suddenly affected by the application of heat; the latter are very inflammable.
1408. Fixed oils. Fixed oils are but seldom found, except in the seeds of plants, and chiefly in such as are dicotyledonous. They are found also, though rarely, in the pulp of fleshy fruits, as in that of the olive, which yields the most abundant and valuable species of all fixed oils. But dicotyledonous seeds, which contain oil, contain also at the same time a quantity of mucilage and fecula, and form, when bruised in water, a mild and milky fluid, known by the name of emulsion. And on this account they are sometimes denominated emulsive seeds. Some seeds yield their oil merely by means of pressure, though it is often necessary to reduce them first of all to a sort of pulp, by means of pounding them in a mortar. Others require to be exposed to the action of heat, which is applied to them by means of pressure between warm plates of tin, or of the vapor of boiling water, or of roasting before they are subjected to the press. Fixed oil, when pure, is generally a thick and viscous fluid, of a mild or insipid taste, and without smell. But it
is never entirely without some color, which is for the
most part green or yellow. Its specific gravity is to
water as 9403 to 1:000. It is insoluble in water. It is decomposed in the acids, but with the alkalies it forms soap. When exposed to the atmosphere it becomes inspissated and opaque, and assumes a white color and a resemblance to fat. This is in consequence of the absorption of oxygen; but owing to the appearance of a quantity of water in oil that is exposed to the action of the air, it has been thought that the oxygen absorbed by it is not yet perhaps assimilated to its substance. When exposed to cold it con- geals and crystallizes, or assumes a solid and granular form; but not till the thermometer has indicated a degree considerably below the freezing point. When exposed to the action of heat it is not volatilized till it begins to boil, which is at 600° of Fahrenheit. By distillation it is converted into water, carbonic acid, and carburetted hydrogen gas, and charcoal; the product of its combustion is nearly the same; and hence
it is a compound of carbon, oxygen, and hydrogen.
Fixed oils are generally divided into two sorts, fat
oils and drying oils. The former are readily inspissated by the action of the air, and converted into a sort of fat. The latter are capable of being dried by the action of the air, and converted into a firm and trans-
parent substance.
1409. The principal species of fat oils are the following:—
1410. Olive-oil, which is expressed from the pulpy part of the fruit of olea europea. The fruit is first broken in a mill, and reduced to a sort of paste. It is then subjected to the action of a press, and the oil, which is now easily separated, swims on the top of the water in the vessel beneath. It is manufactured chiefly in France and in Italy, and is much used throughout Europe instead of butter, and to give a seasoning to food.
1411. Oil of almonds, which is extracted from the fruit of the amygdalus communis or common almond. The almonds are first well rubbed or shook in a coarse bag or sack, to separate a bitter powder which covers their epidermis.‘They are then
pounded to a paste in mortars of marble, which is afterwards subjected to the action of the press; and the oil is now ob- tained as in the olive.
£12. Rapeseed-oil, which is extracted from the brassica napus and campestris. It is less fixed and less liable to become ran- cid than the two former, and is manufactured chiefly in Flanders.
1413. Oil of behen, which is extracted from the fruit of the guilandina mohringa, common in Egypt and Africa. It is apt to become rancid; but it is without odor, and is on this ac- count much used in perfumery.
1414. The principal species of drying oils are linseed-oil, nut-oil, poppy-oil, and hempseed-oil.
1415. Linseed oil is obtained from the seeds of flax, which are generally roasted before they are subjected to any other process, for the purpose of drying up their mucilage and separating more oil.
1416. Nut-oil is extracted from the fruit of corylus avellana, or juglans regia. The kernel is first slightly roasted, and the oil then expressed. It is used in paintings of a coarser sort; and also in the seasoning of food by many of the inhabitants of the este departments of France; but itis apt to become rancid.
1417. Poppy-oil is extracted from the seeds of papaver somni- ferum, which is cultivated in France and Holland for this pur- pose. It is clear and transparent, and dries readily; and when pure it is without taste or odor. It is used for the same pur- poses as the olive-oil, for which it is often sold, and possesses nothing of the natcotic properties of the poppy.
1418. Hempseed-oil is extracted from the seed of the hemp. It has a harsh and disagreeable taste, and is used by painters in this country, and yery extensively for food in Russia.
1419. Volatile oils. Volatile oils, which are known also by the name of essential oils, are of very common occurrence in the vegetable kingdom, and are found in almost all the different organs of the plant. They are found in many roots, to which they communicate a fragrant and aromatic odor, with a taste somewhat
acrid. The roots of inula helenium, genista canarie
Tp
oils.
nsis, and a variety of other plants, contain essential Is. They are found also in the bark of laurus cinnamomum, of laurus sassafras, and pinus; in the leaves of labiate plants, such as mint, rosemary, marxjoram; and of the odorous umbellifere, such as chervil,
poor J
fone, angels juner tse 28 jin tier 5 scion or a laa also
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1421. War p
ing concrete, a
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by the absorpti expected to 0c cordingly the butter of cocoa as tallow of ere of wax, The of croton, and y
1492, The buter theobroma cacao or Waler, ot by subjec having exposed then
1495, Bader of
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Separates from milk,
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Boox I. VEGETABLE CHEMISTRY. 221
fennel, angelica; and of plants with compound flowers, such as wormwood. They are found also in the flower itself, as in the flowers of chamomile, and the rose; andin the fruit, as in that of pepper and ginger, and in the external integuments of many seeds, but never inthe cotyledon.‘They are extracted by means of expression or distillation, and are extremely numerous; and perhaps every plant possessing a peculiar odor possesses also a peculiar and volatile oil. The aroma of plants, therefore, or the substance from which they derive their odor, and which is cognisable only by the sense of smell, is perhaps merely the more volatile and evaporable part of their volatile oil, disengaging itself from its combinations. Volatile oils are characterised by their strong and aromatic odor, and rather acrid taste. They are soluble in alcohol, but are not readily coverted into soaps by alkalies. They are very inflammable, and are volatilised by a gentle heat. Like fixed oils, their specific gravity is generally less than that of water, on the surface of which they will float; though in some cases it is found to be greater than that of water, in which they consequently sink. They are much in request on account of their agreeable taste and odor, and are pre- pared and sold by apothecaries and perfumers, under the names of distilled waters or essences; as well as employed also in the manufacture of varnishes and pigments.
1420. Wax. On the upper surface of the leaves of many trees there may often be observed a sort of var- nish, which, when separated by certain chemical processes, is found to possess all the properties of bees’- wax, and is consequently a vegetable wax. It exudes, however, from several other parts of the plant besides the leaf, and assumes a more waxy and concrete form, as from the catkins of the poplar, the alder, and the fir; from the fruit of the myrica cerifera and croton sebiferum; but particularly from the antherz of the flowers, from which it is probable that the bees extract it unaltered. It was the opinion of Reaumur, however, that the pollen undergoes a digestive process in the stomach of the bee before it is converted into wax, though a late writer on the subject endeavours to prove that the wax is elaborated from the honey extracted by the bee, and not from the pollen._ It is found also in the interior of many seeds, from which it is extracted, by means of pounding them and boiling them in water. The wax is melted and swims on the top. Wax, when pure, is of a whitish color, but without taste and without smell. The smell of bees’-wax is indeed somewhat aromatic, and its color yellow. But this is evidently owing to some foreign substance with which it is mixed, because it loses its smell and color by means of bleaching, and becomes perfectly white. This is done merely by drawing it out into thin stripes, and exposing it for some time to the atmosphere. Bleached wax is not aftected by the air. Its specific gravity is 0°9600._ It is insoluble in water, and in alcohol. It combines with the fixed oils, and forms with them a composition known by the name of cerate. It combines also with the fixed alkalies, and forms with them a compound possessing the properties of common soap. The acids have but little action on it, and for this reason it is useful asa lute to confine them, or to prevent them from injuring cork. When heat is applied to wax it becomes soft, and melts at the temperature of 142° if unbleached, and of 155° if bleached, into a colorless and trans- parent fluid, which, as the temperature diminishes, concretes again and resumes its former appearance. Ata higher temperature it boils and evaporates, and the vapor may be set on fire by the application of red heat. Hence its utility in making candles. And hence an explication of the singular phenomenon ob- servable in the dietamnus fraxinella. This plant is fragrant, and the odor which it diffuses around forms a partial and temporary atmosphere, which is inflammable; for if a lighted candle or other ignited body is brought near to the plant, especially in the time of drought, its atmosphere immediately takes fire. This phenomenon was first observed by the daughter of the celebrated Linneus, and is explained by sup- posing the partial and temporary atmosphere to contain a proportion of wax exuded from the plant, and afterwards reduced to vapor by the action of the sun. The result of its combustion in oxygene gas was, according to Lavoisier, carbonic acid and water, in such proportion as to lead him to conclude that 100 parts of wax are composed of 82°28 of carbon and 17°72 of hydrogen. But owing to the little action of acids upon it, there seems reason to believe that it contains also oxygen as an ingredient.
1421. Wax possesses all the essential properties of a fixed oil. But fixed oils have the property of becom- ing concrete, and of assuming a waxy appearance when long exposed to the air, in consequence, as it seems, of the absorption of oxygen. Wax therefore may be considered as a fixed oil rendered concrete, perhaps by the absorption of oxygen during the progress of vegetation. Butif this theory is just, the wax may be expected to occur in a considerable variety of states according to its degree of oxygenation; and this is ac- cordingly the case. Sometimes it has the consistency of butter, and is denominated butter of wax, as butter of cocoa, butter of galam. Sometimes its consistency is greater, and then it is denominated tallow, as tallow of croton; and when it has assumed its last degree of consistency, it then takes the appellation of wax. The following are its principal species: butter of cacao, butter of cocoa, butter of nutmeg, tallow of croton, and wax of myrtle.
1422. The butter of cacao is extracted from the seeds of the 1424. Butter of nutmeg is obtained from the seeds of the theobroma cacao or chocolate plant, either by boiling themin_myristica officinalis, or nutmeg-tree. water, or by subjecting them to the action of the press after 1425. Tallow of croton is obtained from the fruit of the croton
having exposed them to the vapor of boiling water.
1423. Butter of cocoa is found in the fruit of cocos nucifera or cocoa-nut-tree. It is expressed from the pulp of the nut, and is even said to separate from it when ina fluid state, as cream separates from milk.
sebiferum. 1426. The wax of myrtle is obtained from the berry of the myrica cerifera.
1497. Resins, Resins are volatile oils, rendered concrete by'means of the absorption of oxygen, or rather perhaps by the abstraction of part of their hydrogen.‘They have a slight degree of transparency, and their color is generally yellowish.‘Their taste is somewhat acrid; but they are without smell when pure. Their specific gravity varies from 1:0180 to 12289. They are non-conductors of electricity, and
when excited by friction their electricity is negative.
1428. Rosin is aspecies of resin, of which there are several varieties.— From different species of the pine, larch, and fir- tree, there exudes a juice which concretes in the form of tears. Its extrication is generally aided by means of incisions, and it receives different appellations, according to the species from which it is obtained. If it is obtained from the pinus syl- vestris, it is denominated common turpentine; from pinus larix, Venice turpentine; from amyris balsamea, balsam of Canada. It consists of two ingredients, oil of turpentine and rosin. The oilis extricated by distillation, and the rosin re- mains behind. If the distillation is continued to dryness, the residuum is common rosin or colophonium; but if water is mixed with it while yet fluid, and incorporated by violent agitation, the residuum is yellom rosin. The yellow rosin is the most ductile, and the most generally used in the arts.
1429. Pitch and tar are manufactured from the resinous juices of the fir. The trunk is cut or cleft into pieces of a conve- nient size, which are piled together in heaps, and covered with turf. They are then set on fire, and the resinous juice which is thus extricated, being prevented from escaping ina volatile state by means of the turf, is precipitated and collected in a vessel beneath. It is partly converted into an empyreu- matic oil, and is now tar, which, by being further inspissated, is converted into pitch.
1430. Mastich is extracted from the pistacia lentiscus.
? 1431. Sandarach is obtained from the juniperis communis, by spontaneous exudation.
1432. Elemi is extracted from the amyris elemifera.
1433. Tacambac is the produce of the fagara octandra and Populus balsamifera.
1454, Labdanum is obtained from the cistus creticus.
The species of resins are numerous.
1435. Opobalsamum,or balm of Gilead, which has been so much famed for its medical virtues, is the produce of the amyris gileadensis, a shrub which grows in Judea and in Arabia;‘but it is so much valued by the Turks that its importation is pro- hibited. This is the balm of Gilead so much celebrated in Scripture. Pliny says it was first brought to Rome by the generals of Vespasian. It is obtained in a liquid state from in- cisions made in the bark, and is somewhat bitter to the taste.
1436. Copaiva, or balsam of copaiva, is obtained from the co- paifera officinalis.
1437. Dragon’s blood is obtained from the draccena draco, pterocarpus draco, and calamus rotang
1438. Guaiac is the produce of the guaiacum officinale.
1439. Botany Bay resin, the produce of the acarois resinifera, a native of New Holland, and found in great abundance about Botany Bay
1440. Green resin constitutes the coloring matter of the leaves of trees, and of almost all vegetables. It is insoluble in water, but soluble in alcohol. When treated with oxymuriatic acid, it assumes the color of a withered leaf, and exhibits the re- sinous properties more distinctly.
1441. Copal is the produce of the rhus copallinum, a tree which is found in North America.
442, Animé, is obtained from the hymenza coubaril, or locust-tree, a native of North America.
1443. Lac is the produce of the croton lacciferum, a native of the East Indies.
1444. Bloom. Upen the’epidermis of the leaves‘and fruit of certain species of plants, there is to be found a fine, soft, and glaucous powder. It is particularly observable upon cabbage leaves, and upon plums, to which it communicates a pecu
liar shade. It is known to gardeners by the name of bloom. It{is easily rubbed off by the fingers; and when viewed un- der the microscope seems to he composed of small opaque
and Md eee granules, somewhat similar to the powder of
starch; but with a high magnifying power it appears transparent.
999 SCIENCE OF AGRICULTURE.
Parr If.
When rubbed off, it is again re-produced, though slowly. It resists the action of dews and rains, and is consequently mso- luble in water. But it is soluble in spirits of wine; from which circumstance it has been suspected, with some pro- bability, to be a resin.
1445. The use of resins in the arts is very considerable; but their medical virtues are not quite so great as has been generally supposed. They are émployed in the arts of painting, varnishing, embalming, and perfumery; and they furnish us with two of the most important of all materials to a naval power, pitch
and tar.
1446. Gum-resins.‘This term is employed to denote a class of vegetable substances, which have been
regarded by chemists as consisting of gum and resin.
They are generally contained in the proper vessels
of the plant, whether in the root, stem, branches, leaves, flowers, or fruit. But there is this remarkable difference between resins and gum-resins, that the latter have never been known, like the former, to ex- ude spontaneously from the plant. They are obtained by means of bruising the parts containing them, and expressing the juice, which is always in the state of an emulsion, generally white, but sometimes of a different color; or they are obtained by means of incisions from which the juice flows. This juice, which
is the proper juice of the plant, is then exposed to the action of the sun, by which, in warm climates, it is condensed and inspissated, and converted into the gum-resin of commerce. Gum-resins, in their solid
state, are brittle, and less transparent than resins. They have generally a strong smell, which is some- times alliaceous, and a bitter and nauseous taste. They are partially soluble both in water and in alcohol. When heated, they do not melt like the resins, nor are they so combustible. But they swell and soften by heat, and at last burn away with a flame. By distillation they yield volatile oil, ammonia combined with an acid, and have a bulky charcoal. The principal species of gum-resins which have been hitherto applied
to any useful purpose are:—
1447. Galbanum; obtained from the stem of the bubon gal- banum.
1448. Ammoniac, brought from Africa in the form of small tears; the plant which yields it is thought to be a species of ferula.
1449. Scammony, the produce of the convolvulus scammonia.
1450. Opoponax, obtained from the pastinaca opoponax.
1451. Euphorbium, the produce of the euphorbia officinalis; its taste is caustic; it is considered as a poison, but is oecca- sionally employed in medicine.
1452. Olibanwm is obtained from the juniperus lycia, which grows in Arabia, particularly by the borders of the Red Sea. It is the frankincense of the ancients. It exudes from in- cisions made in the tree, and concretes into masses about the size of a chestnut.
14535. Sagapenum is supposed to be obtained from the ferula
1455. Myrrh, the plant yielding which grows in Abyssinia and. Arabia. Bruce says, it belongs to the genus mimosa; but however this may be, myrrh is the juice of the plant concreted in the form of tears. Its color is yellow, its odor strong but agreeable, and its taste bitter; it‘is employed in medicine, and is esteemed an excellent stomachic.
1456. Assufwtida, a substance which is well known for its strong and fetid smell, is obtained from the ferula assafcetida. At four years old the plant is dug up bythe root. The root is then cleaned, and the extremity cut off; a milky juice exudes, which is collected; and when it ceases to flow an- other portion is cut off, and more juice extricated. The pro- cess is continued till the root isexhausted. The juice which has been collected soon concretes, and constitutes safoetida. It is brought to Europe in small agglutinated grains of dif- ferent colors, white, red, yellow. It is hard, but brittle. Its
pers taste is bitter, and its smell insufferably fetid; the Indians
1454, Gamboge, or gumgutt, the produce of the mangostana_use it as a seasoning for their food, and call it the foot of
cambogia. the gods. In Europe, it is used in medicine as an antispas- modic.
1457. Balsams. The substances known by the name of balsams are resins united to the benzoic acid. They are obtained by means of incisions made in the bark, from which a viscous Juice exudes, which is afterwards inspissated by the action of the fire or air, or they are obtained by means of boiling the part that contains them. They are thick and viscid juices, but become readily concrete. Their color is brown or red; their smell aromatic when rubbed; their taste acrid; their specific gravity 1090. They are un- alterable in the air after becoming concrete. They are insoluble in water, but boiling water abstracts part of their acid; they are soluble in the alkalies and nitric acid. When heated they melt and swell, evolv- ing a white and odorous smoke. The principal of the balsams are the following: benzoin, storax, styrax, balsam of tolu, balsam of Peru.
1458. Benzoin is the produce of the styrax benzoin. 1461. Balsam of tolu is obtained from the toluifera balsamum. 1459. Storaa is obtained from the styrax officinale. 1462. Balsam of Peru is obtained from the myroxylon perui- 1460. Styrax is a semi-fluid juice, the produce of a tree said ferum.
to be cultivated in Arabia.
1463. Camphor. The substance known by the name of camphor is obtained from the root and stem of the laurus camphora, by distillation. When pure it is a white brittle substance, forming octagonal crystals or square plates. Its taste is hot and acrid; its odor strong but aromatic; its specific gravity 0°9887. When broke into small fragments and put into water, on the surface of which it swims, a singular phenomenon ensues. The water surrounding the fragments is immediately put into commotion, advanc- ing and retiring in little waves, and attacking the fragments with violence. The minuter fragments are driven backwards and forwards upon the surface as if impelled by contrary winds. Ifa drop of oil is let fall on the surface of the water it produces an immediate calm. This phenomena has been attributed to electricity. Fourcroy thinks it is merely the effect of the affinities of the camphor, water, and air, enter- ing into combination. Though camphor is obtained chiefly from the laurus camphora, yet it is known to exist in a great many other plants, particularly labiate plants, and has been extracted from the roots of zodoary, sassafras, thyme, rosemary, and lavender.
1464. Caoutchouc. The substance denominated caoutchouc was first introduced into Europe about the beginning of the eighteenth century. But from a use to which it is very generally applied of rubbing out the marks made upon paper by a black-lead pencil, it is better known to most people in this country by the name of Indian rubber. It is obtained chiefly from havea caoutchouc and Jatropha elastica, trees indi- genous to South America; but it has been obtained also from several trees which grow in the East Indies, such as ficus indicus, artocarpus integrifolia, and urceola elastica. If an incision is made into the bark of any of these plants a milky juice exudes, which, when exposed to the air, concretes and forms caoutchoue. As the object of the natives in collecting it had been originally to form it into vessels for their own use, it is generally made to concrete in the form of bags or bottles. This is done by applying the juice, when fluid, in thin layers to a mould of dry clay, and then Jeaving it to concrete inthe sun or by the fire. A second layer is added to the first, and others in succession, till the vessel acquires the thickness that is wanted. The mould is then broken and the vessel fit for use, and in this state it is generally brought in- to Europe. It has been brought, however, even in its milky state, by being confined from the action of the air. Ifthe railky juice is exposed to the air, an elastic pellicle is formed on the surface. If it is con- fined in a vessel containing oxygene gas, the pellicle is formed sooner, If oxymuriatic acid is poured into the milky juice, the caoutchouc precipitates immediately. This renders it probable that the formation of the caoutchouc is owing to the absorption of oxygene. Caoutchouc, when pure, is of a white color, with- out taste and without smell. The black color of the caoutchouc of commerce is owing to the method of drying the different layers upon the moulds on which they are spread. They are dried by being exposed to smoke. The black color of the caoutchouc, therefore, is owing to the smoke or soot alternating with its different layers. It is soft and pliable like leather, and extremely elastic, so that it may be stretched to avery great length, and still recover its former size. Its specific gravity is 0°9335, Gough, of Man- chester, has made some curious and important experiments on the connection between the temperature of caoutchouc and its elasticity, from which it results that ductility as well as fluidity is owing to latent heat. Caoutchouc is not altered by exposure to the air. It is perfectly insoluble in water; but if boiled n water for some time its edges become so soft that they will cement, if pressed and kept for a while close- ly together. It is insoluble in alcohol, but soluble jn ether,— It is soluble also in volatile oils and in alka-
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lent effects up
colored, and dissolv eleton, which con mposed of bundle tranparent, tis) lible in water and inthe open air it bh kaving a charcoal pyreumatic oil, car croy, indicating tl uigredient does nc bon, 5253; oxyge
1467. Charcoal, the heat, and the the original mass, the woody fibre a isplain that char upon the quantity tained from alo bustion, under th experiments made a greater proport the green parts be charcoal than the. Decause the barks parts not, The wo dried substance 19; September,%, Bu ofthe sme Accor follows sa
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1S employed in | NOWn for its
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benzoic acid des, which is iling the part ‘olor is brown They are un. abstracts part swell, evoly. oraX, styrax,
fera balsamum, yroxylon perui-
and stem of onal crystals vity 09887 a singular on, advane- ments are of oil is let tributed to alr, enter- ; known to he roots of
» about the ‘ubbing out ntry by the trees indi Jast Indies, the bark of aoutchouc pwn use, It uice, when ne fire, A ess that 18 rought in- e action of [fit is CON- oured into mation of jlor, with- nethod of 7 exposed ting with stretelied of Man- sperature to latent if boiled pile close- 1 jn alka-
Boo I. VEGETABLE CHEMISTRY. 298
lies. And from the action operated upon by acids it is thought to be composed of carbon, hydrogen, oxygen, and azote. It seems to exist in a great variety of plants combined with other ingredients. It may be separated from resins by alcohol. It may be separated from the berries of the misseltoe by means of water, and from other vegetable substances by other processes. It is said to be contained both in opium and in mastic. But from these substances it cannot be extracted in sufficient quantities to make it worth the labor. It is applied to a great many useful purposes both in medicine and the arts, to which, from its great pliability and elasticity, it is uncommonly well adapted. In the countries where it is produced the natives make boots and shoes of it, and often use it by way of candle.
1465. Cork. The substance known by the name of cork is the outer and exfoliated bark of the quercus suber or cork-tree, a species of oak that grows in great abundance in France, Spain, and Italy. But te prevent its natural exfoliation, which is always irregular, and to disengage it in convenient portions, a longitudinal incision is made in the bark from the root to the top of the stem; and a transverse and cir- cular incision at each extremity. The outer layer, which is cork, is then stripped off, and to flatten and reduce it to sheets it is put into water and loaded with weights. The tree continues to thrive, though it is thus stripped of its cork once in two or three years. Cork is a light, soft, and elastic substance, dis- tinguished by the following properties:— Its color is a sort of light tan. It is very inflammable, and burns with a bright white flame, leaving a black and bulky charcoal behind. When distilled it yields a small quantity of ammonia. Nitric acid corrodes and dissolves it, changing its color to yellow, and finally decomposes it, converting it partly into an acid, and partly into a soft substance resembling wax or resin. The acid which is thus formed is denominated the suberic acid, and has been proved by the experiments of Lagrange to be an acid of a peculiar nature. It seems probable that cork exists in the bark of some other trees also, as well as the quercus suber. The bark of the ulmus suberosa assumes something of the external appearance of cork, which it resembles in its thickness, softness, and elasticity, and in its loose and porous texture, as well as also in its chemical properties. Fourcroy seems, indeed, to regard the epidermis of all trees whatever to be a sort of cork, but does not say on what grounds his opinion is founded.
1466. Woody fibre.‘The principal body of the root, stem, and branches of trees, is designated by the appellation of wood. But the term is too general for the purpose of analytical distinction, as the part designated by it often includes the greater part of the substances that have been already enumerated. It remains, therefore, to be ascertained whether there exists in the plant any individual substance different from those already described, and constituting more immediately the fabric of the wood. Ifa piece of wood is well dried and digested, first in water and then in alcohol, or such other solvent as shall produce no violent effects upon the insoluble parts; and if the digestion is continued till the liquid is no longer colored, and dissolves no more of the substance of the plant, there remains behind a sort of vegetable skeleton, which constitutes the basis of the wood, and which has been denominated woody fibre. It is composed of bundles of longitudinal threads, which are divisible into others still smaller. It is somewhat transparent. It is without taste and smell, and is not altered by exposure to the atmosphere. It is inso. luble in water and alcohol; but the fixed alkalies decompose it with the assistance of heat. When heated in the open air it blackens without melting or frothing, and exhales a thick smoke and pungent odor, leaving a charcoal that retains the form of the original mass. When distilled in a retort it yields an em. pyreumatic oil, carburetted hydrogene gas, carbonic acid, and a portion of ammonia, according to Four- croy, indicating the presence of nitrogen as constituting one of its elementary principles; and yet this ingredient does not appear in the result of the later analysis of Gay Lussac and Thenard, which is, car- bon, 52°53; oxygen, 41°78; hydrogen, 5°69; total 100.
1467. Charcoal. When wood is burnt with a smothered flame, the volatile parts are driven off by the heat, and there remains behind a substance exhibiting the exact form, and even the several layers of the original mass. This process is denominated charring, and the substance obtained, charcoal. As it is the woody fibre alone which resists the action of heat, while the other parts of the plant are dissipated, it is plain that charcoal must be the residuum of woody fibre, and that the quantity of the one must depend upon the quantity of the other, if they are not rather to be considered as the same. Charcoal may be ob- tained from almost all parts of the plant, whether solid or fluid. It often escapes, however, during com- bustion, under the form of carbonic acid, of which it constitutes one of the elements. Frema variety of experiments made on different plants and on their different parts, it appears that the green parts contain a greater proportion of charcoal than the rest. But this proportion is found to diminish in autumn, when the green parts begin to be deprived of their glutinous and extractive juice. The wood contains more charcoal than the alburnum, the bark more than both. But this last result is not constant in all plants, because the bark is not a homogeneous substance, the outer parts being affected by the air and the inner parts not. The wood of the:quercus robur, separated from the alburnum, yielded from 100 parts of its dried substance 19.75 of charcoal; the alburnum, 17.5; the bark, 26; leaves gathered in May, 80; in September, 26. But the quantity of charcoal differs also in different plants, as well as in different parts of the same. According to the experiments of Mushet, 100 parts of the following trees afforded as follows:—
Lignum vite-- Walnut-=---- 20°6, Norway fir---- 19-2 Mahogany-=-- Holly--.--- 19:9| Sallow-==*= Seal Sed Laburnum-=-- Beech------ 19:9| Ash--= 2+ Sires) Chestnut-=--- American maple--- So ARRG)| passhaay-.- 17-4 Oak- S s Elm=----- 19:5| Scotch pine--- 16:4
American black birch-- 1468. The properties of charcoal are insolubility in water, of which, however, it absorbs a portion when newly made, as also of atmospheric air. It is incapable of putrefaction. It is not altered by the most violent heat that can be applied, if all air and moisture are excluded; but when heated to about 800 it burns in atmospheric air or oxygene gas, and if pure, without leaving any residuum. It is regarded by chemists as being a triple compound, of which the ingredients are carbon, hydrogene, and oxygene. Charcoal is of great utility both to the chemist and artist as a fuel for heating furnaces, as well as for a variety of other purposes. It is an excellent filter for purifying water. It is a very good tooth-powder: and is also an indispensable ingredient in the important manufacture of gunpowder.
1469. The sap. If the branch of a vine is cut asunder early in the spring, before the leaves have begun to expand, a clear and colorless fluid will issue from the wound, which gardeners denominate the tears of the vine. It is merely, however, the ascending sap, and may be procured from almost any other plant by the same or similar means, and at the same season; but particularly from the maple, birch, and walnut- tree, by means of boring a hole in the trunk. It issues chiefly from the porous and mixed tubes of the alburnum; though sometimes it does not flow freely till the bore is carried to the centre. A small branch of a vine has been known to yield frém twelve to sixteen ounces, in the space of twenty-four hours. A maple-tree of moderate size yields about 200 pints in a season, as has been already stated; and a birch. tree has been known to yield in the course of the bleeding-season, a quantity equal to its own weight. In the sap of fagus sylvatica, Vauquelin found the following ingredients:— Water, acetate of lime, with ex- cess of acid, acetate of potass, gallic acid, tannin, mucous and extractive matter, and acetate of alumina. In 1039 parts of the sap of the ulmus campestris, he found 1027 parts of water and volatile matter, 9°240 of acetate of potass, 1:060 of vegetable matter, 0°796 of carbonate of lime, besides some slight indications of the presence of sulphuric and muriatic acids; and at a later period of the season he found the vegetable matter increased, and the carbonate of lime and acetate of potass diminished. From the above experi- ments, therefore, as well as from those of other chemists, it is plain that the sap consists of a great iriety of ingredients, differing in different species of plants; though there is too little known concerning if to warrant the deduction of any general conclusions, as the number of plants whose sap has been hither.
294 SCIENCE OF AGRICULTURE. Pane IT.
to analysed is yet but very limited, It is the grand and principal source of vegetable aliment, and may be regarded as being somewhat analogous to the blood of animals. It is not made use of by man, at least in its natural state. But there are trees, such as the birch, whose sap may be manufactured into a very pleasant wine; and it is well known that the sap of the American maple-tree yields a considerable quantity of sugar.;:
1470. The proper juice. When the sap has received its last degree of elaboration from the different or- gans through which it has to pass, it is converted into a peculiar fluid, called the proper juice. This fiuid may be distinguished from the sap by means of its color, which is generally green, as in periwinkle; or red, as in logwood; or white, as in spurge; or yellow, as in celandine; from the two last of which it may readily be obtained by breaking the stem asunder, as it will then exude from the fracture. Its principal seat is in the bark, where it occupies the simple tubes; but sometimes it is situated between the bark and wood, as in the juniper-tree; or in the leaf, as in the greater part of herbs; or it is diffused throughout the whole plant, as in the fir and hemlock; in which case, either the proper juice mixes with the sap, or the vessels containing it have ramifications so fine as to be altogether imperceptible. It is not, however, the same in all plants, nor even in the different parts of the same plant. In the cherry-tree it is mucila. ginous; in the pine it is resinous; in spurge and celandine it is caustic, though resembling in appearance an emulsion. In many plants the proper juice of the bark is different from that of the flower; and the proper juice of the fruit different from both. Its appearance under the microscope, according to Senebier is that of an assemblage of small globules connected by small and prism-shaped substances placed between them. If this juice could be obtained in a state of purity, its analysis would throw a considerable degree of light upon the subject of vegetation. But it seems impracticable to extract it without a mixture of sap. Senebier analysed the milky juice of euphorbia cyparissias, of which he had procured a small quantity considerably pure, though its pungency was so great as to occasion an inflammation of the eyes to the person employed to procure it. It mixed readily with water, to which it communicated its color. When left exposed to the air a slight precipitation ensued; and when allowed to evaporate a thin and opaque crust remained behind. Alcohol coagulated it into small globules. Ether dissolved it entirely, as did also oil of turpentine. Sulphuric acid changed its color to black; nitric acid to green. The most ac- curate experiments on the subject are those of Chaptal. When oxymuriatic acid was poured into the
neculiar juice of euphorbia, a very copious white precipitate fell down, which, when washed and dried,
ad the appearance of starch, and was not altered by keeping. Alcohol, aided by heat, dissolved two thirds of it, which the addition of water again precipitated. They had all the properties of resin, The remaining third part possessed the properties of woody fibre. The same experiment was tried on the juice of a variety of other plants, and the result uniformly was that oxymuriatic acid precipitated from them woody fibre.
1471. The virtues of plants have generally been thought to reside in‘their proper juices, and the opinion seems indeed to be well founded. It is at least proved by experiment in the poppy, spurge, and fig. The juice of the first is narcotic, of the two last corrosive. The diuretic and balsamic virtues of the fir reside in its turpentine, and the purgative property of jalap in its resin. If sugar is obtained from the sap of the sugar-cane and maple, it is only because it has been mixed with a quantity of proper juice. The bark certainly contains it in greatest abundance, as may be exemplified in cinnamon and quinquina. But the peach-tree furnishes an exception to this rule: its flowers are purgative, and the whole plant aromatic; but its gum is without any distinguished virtues. Malpighi regarded the proper juice as the principle of nourishment, and compared it to the blood of animals; but this analogy does not hold very closely. The sap is, perhaps, more analogous to the blood, from which the proper juice is rather a secretion. In one respect, however, the analogy holds good, that is, with regard to extravasated blood and peculiar juices. Ifthe blood escapes from the vessels it forms neither flesh nor bones, but tumors; and if the pro- per juices escapes from the vessels containing them, they form neither wood nor bark, but a lump or deposit of inspissated fluid. To the sap or to the proper juice, or rather to a mixture of both, we must re- fer such substances as are obtained from plants under the name of expressed juices, because it is evident that they can come from no other source. In this state they are generally obtained in the first instance whether with a view to their use in medicine or their application to the arts. It is the business of the chemist or artist to separate and purify them afterwards according to the peculiar object he may happen to have in view, and the use to which he purposes to apply them. They contain, like the sap, acetate of potass or of lime, and assume a deeper shade of color when exposed to the fire or air. The oxymuriatic acid precipitates from them a colored and flaky substance as from the sap, and they yield by evaporation a quantity of extract. But they differ from the sap in exhibiting no traces of tannin or gallic acid, and but rarely of the saccharine principle.
1472. Ashes. When vegetables are burnt in the open air the greatest part of their substance is evapo- rated during the process of combustion; but ultimately there remains behind, a portion which is alto- gether incombustible, and incapable of being volatilised by the action of fire. This residuum is known by the name of ashes. Herbaceous plants, after being dried, yield more ashes than woody plants; the leaves more than the branches; and the branches more than the trunk. The alburnum yields also more ashes than the wood; and putrified vegetables yield more ashes than the same vegetables in a fresh state, if the putrefaction has not taken place in a current of water. The result of Saussure’s experiments on 1000 parts of different plants was as follows:—
Gathered in May, dried leaves of the oak----- 53 parts of ashes. green leaves of the oak~-==- 13 dried leaves of the rhododendron-- tit) dried leaves of the zsculus hippocastanum—~ 72
trunk and branches of zesculus hippocastanum 35 Gathered in September, dried leaves of the«sculus hippocastanum 86 oY ae Br
dried leaves of the oak=-- 55
green leaves of the oak--:= 24
Gathered mhen in flower, leaves of pisum sativum--“ 95 Gathered when in fruit, leaves of pisum sativum° S= 81 leaves of vicia juba- s= 20
Gathered before coming into flower, the leaves of the viciafaba- 16 é
SS ea
Oak, the dried bark 60, the alburnum 4, wo:
1473. The analysis of the ashes of plants, with a view to the discovery of the ingredients of which they are composed, produces alkalies, earths, and metals, which must therefore be considered as ingredients in the composition of the vegetable. But vegetable ashes contain also a variety of other principles, occur- ring, however, in such small proportions as generally to escape observation. Perhaps they contain all sub- stances not capable of being volatilised by the action of fire.
1474. Alkalies. The alkalies are a peculiar class of substances, distinguished by a caustic taste and the property of changing vegetable blues to green. They are generally regarded as being three in num- ber, potass, soda, and ammonia, of which the two former only are found in the ashes of vegetables. Am- monia is, indeed, often obtained from vegetable substances by means of distillation, but then it is always formed during the process, If the ashes of land vegetables, burnt in the open air, are repeatedly washed in water, and the water filtered and evaporated to dryness, potass is left behind. The potass of commerce is manufactured in this manner, though it is not quite pure.- But it may be purified by dissolving it in Spirits of wine, and evaporating the solution to dryness in asilver vessel. When pure it is white and seml- transparent, and is extremely caustic and deliquescent. It dissolves all soft animal substances, and changes vegetable blues into green. It dissolves alumina, and also a small quantity of silex, with which it fuses into glass by the aid of fire. It had been long suspected by chemists to be a compound substance; and according to the notable discovery by Sir H. Davy, its component parts are at last ascertained to bea
igs
iy infammale nj ciefy i mel at abundal? y tin the state 0! but from)
ni an They are fun separ the date of vegetation. I ol and wheat, were Thi was neal the c saline sas 18 fou The ashe ofthe lea Gatember, oly 17, 1475, The wiity of vartioulany inthe for wtain proportions in astate of
{the greatest el nel, The alkalies are unary calculi,
1476, Earths, flowing: lime, si 147i, Lime is by far catonic, or sulphuric tne is, next to the alk whose parts are all in ‘greater proportion of tie oak, gathered in} Hants the proportion towering, Plants of
Carbonate of lime is, Vegetables, But if th Thisis owing to the. lime, In’green herbe lime but the ashes o more than the alburny oflime;; but they abou of the fruit, yield les ig, Silica is not fou Pteviously deprived of the Proportion of their, 9 parts of silica in 10), bunting from the bud, He parts are de oped ‘Ome stalks of eat cat Wnithered, contained 19 m hen mre of thei are Ne lvested of their somewhat Temarka wa, ad the leave ae The greater part Sequisetum, Ofthem the pr aca Were, in te Contained inth a Of substance WS used to polis
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8 placed betmean
isiderable degtee ut a mixture of procured a smal} hation of the eyes Unicated its color, porate a thin and Ved it entirely, as n. The most ac. 18 poured into the ashed and dred, eat, dissolved tyro les Of resin, The tried on the juice pitated from them
, and the opinion rge, and fig, The es of the fir reside rom the sap ofthe ‘Juice, The bark linquina, But the le plant aromatic: ce as the principle hold very closely, T a secretion, In Nlood and peculiar rs; and if the pro. rk, but a lump or both, we mustre. calise it is evident 1 the first instance he business of the ot he may happen he sap, acetate of
The oxymuriati Id by evaporation r gallic acid, and
hstance is evapo. n which is alto- um is known by ants; the leaves also more ashes resh state, if the nts on 1000 parts
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ustic taste and three in num-
hite and seml- . and change which it fuses ipstance; 4M" ined 10 bea
Boox I. VEGETABLE CHEMISTRY. 22!
highly inflammable metal, which he denominates potassium, and oxygen— one proportion of each. Soda is found chiefly in marine plants, from the ashes of which it is obtained by means of lixiviation. It exists in great abundance in salsola soda, zostera maritima, and in various species of fuci. It is generally ob- tained in the state of a carbonate, but is purified in the same manner as potass, to which it is similar in its properties; but from which it is easily distinguished by its forming a hard soap with oil, while potass forms a soft soap. It consists, according to Sir H. Davy, of one proportion of a metal which he denominates sodium, and two proportions of oxygen. Such are the only vegetable alkalies, and modes of obtaining them. They are found generally in the state of carbonates, sulphates, or muriates, salts that form beyond all comparison the most abundant ingredient in the ashes of green herbaceous plants whose parts are ina state of vegetation. The ashes of the golden rod, growing in an uncultivated soil, and of the bean, turn- sol, and wheat, were found by Saussure to contain at least three‘fourths of their weight of alkaline salts. This was nearly the case also with the leaves of trees just bursting from the bud. But the proportion of alkaline salts is found to diminish rather than to augment as the parts of the plant are developed. The ashes of the leaves of the oak, gathered in May, yielded 47 parts in the 100 of alkaline salts; and in September, only 17.
1475. The utility of the alkalies, as obtained from vegetables, is of the utmost importance in the arts, particularly in the formation of glass and of soaps. If a mixture of soda or potass, and silex or sand, in certain proportions, is exposed to a violent heat, the ingredients are melted down into a fluid mass, which is glass in a state of fusion. In this state it may be moulded into alm any form at the pleasure of the artist. And accordingly we find that it is manufactured into a great varicty of utensils and instruments, under the heads of flint-glass, crown-glass, bottle-glass. Bottle-glass is the coarsest; it is formed of soda and common sand, and is used in the manufacture of the coarser sort of bottles, Crown-glass is composed of soda and fine sand: it is moulded into large plates for the purpose of forming window-glasses and looking-glasses. Flint-glass is the finest and most transparent of all: that which is of the best quality is composed of 120 parts of white siliceous sand, 40 parts of pearl-ash, 35 of red oxide of lead, 13 of nitrate of potass, and 25 of black oxide of manganese. It is known also by the name of crystal, and may be cut and polished so as to serve for a variety of ornamental purposes, as well as for the more important and more useful purposes of forming optical instruments, of which the discoveries of the telescope and the micro- scope are the curious or sublime results. If a quantity of oil is mixed with half its weight of a strong solution of soda or potass, a combination takes place which is rendered more complete by means of boiling. The new compound is soap. The union of oil with potass forms soft soap, and with soda hard soap; sub- stances of the greatest efficacy as detergents, and of the greatest utility in the washing and bleaching of linen. The alkalies are used also in medicine, and found to be peculiarly efticacious in the reduction of urinary calculi,
1476, Earths. The only earths which have hitherto been found in plants are the following: lime, silica, magnesia, alumina.
1477. Lime is by far the most abundant earth. It is generally combined with a portion of phosphoric, carbonic, or sulphuric acid, forming phosphates, or carbonates, or sulphates of lime. The phosphate of lime is, next to the alkaline salt, the most abundant ingredient in the ashes of green herbaceous plants, whose parts are all ina state of vegetation. The leaf of a tree, bursting from the bud, contains in its ashes a greater proportion of earthy phosphate than at any other period: 100 parts of the ashes of the leaves of the oak, gathered in May, furnished 24 parts of earthy phosphate; in September, only 18:25. In annual plants the proportien of earthy phosphate diminishes from the period of their germination to that of their flowering. Plants of the bean, before flowering, gave 145 parts of earthy phosphate; in flower, only 13:5, Carbonate of lime is, next to phosphate of lime, the most abundant of the earthy salts that are found in vegetables. But if the leaves of plants are washed:in water the proportion of carbonate is augmented. This is owing to the subtraction of their alkaline salts and phosphates in a greater proportion than their lime. In green herbaceous plants, whose parts are ina state of increase, there is but little carbonate of lime; but the ashes of the bark of trees contain an enormous quantity of carbonate of lime, and much more than the alburnum, as do also the ashes of the wood. The ashes of most seeds contain no carbonate of lime; but they abound in phosphate of potass. Hence the ashes of plants, at the period of the maturity of the fruit, yield less carbonate of lime than at any previous period,
1478. Silica is not found to exist in a great proportion in the ashes of vegetables, unless they have been previously deprived of their salts and phosphates by washing; but when the plants are washed in water, the proportion of their silica augments.‘lhe ashes of the leaves of the hazel, gathered in May, yielded 2°5 parts of silica in 100. The same leaves, washed, yielded four parts in 100. Young plants, and leaves bursting from the bud, contain but little of silica in their ashes; but the proportion of silica augments as the parts are developed. But perhaps this is owing to the diminution of the alkaline salts. The ashes of some stalks of wheat gathered a month before the time of flowering, and having some of the radicle leaves withered, contained 12 parts of silica and 65 of alkaline salts in 109. Atthe period of their flowering, and when more of their leaves were withered, the ashes contained 32 parts of sjlica and 54 of alkaline salts. Seeds divested of their external covering, contain less silica than the stem furnished with its leaves; and it is somewhat remarkable that there are trees of which the bark, alburnum, and wood, contain scarcely any silica, and the leaves a great deal, particularly in autumn. This is a phenomenon that seems inexpli- cable. The greater part of the grasses contain a very considerable proportion of silica, as do also the plants of the genus equisetum. Sir H. Davy has discovered that it forms a part of the epidermis of these plants, and in some of them the principal part. From 100 parts of the epidermis of the following plants the pro- portions of silica were, in bonnet cane, 90; bamboo, 71°4; common reed, 48:1; stalks of corn, 665. Owing to the silica contained in the epidermis, the plants in which it is found, are sometimes used to give a polish to the surface of substances where smoothness is required. The Dutch rush, equisetum hyemale, a plant of this kind, is used to polish even brass.
1479. Magnesia does not exist so abundantly in the vegetable kingdom as the two preceding earths. It has been found, however, in several of the marine plants, particularly the fuci; but salsola soda contains more of magnesia than any other plant yet examined. According to Vaugquelin, 100 parts of it contain 17:929"of magnesia.
1480. Alumina has been detected in several plants, but never except in very small quantities.
1481. Metallic oxides. Among the substances found in the ashes of vegetables, we must class also metals. They occur, however, only in small quantities, and are not to be detected except by the most delicate ex- periments. The metals hitherto discovered in plants are iron, manganese, and perhaps gold. Of these iron is by far the most common. It occurs in the state of an oxide, and the ashes of hard and woody plants, such as the oak, are said to contain nearly one twelfth of their own weight of this oxide. The ashes of salsola contain also a considerable quantity. The oxide of manganese was first detected in the ashes of vegetables by Scheele, and afterwards found by Proust in the ashes of the pine, calendula, vine, green oak, and fig-tree. Beccher, Kunckel, and Sage, together with some other chemists, contend also for the ex- istence of gold in the ashes of certain plants; but the very minute portion which they found, seems more likely to have proceeded from the lead employed in the process than from the ashes of the plant. It has been observed by Saussure, that the proportion of the oxides of iron and of manganese augments in the ashes of plants as their vegetation advances.‘The leaves of trees furnish more of these principles in au tumn than in spring. It isso also with annual plants. Seeds contain metals in less abundance than the stem; and if plants are washed in water, the proportions of their metallic oxides i: ugmented,
1482. Such are the principal ingredients that enter into the composition. They are indeed numerpus, though some of them, such as the metallic oxides, occur in such sm proportions as to render
—
ot
a} tan
a a iy| ‘| vi A
—— ee r
226 SCIENCE OF AGRICULTURE. Parr IT.
it doubtful whether they are in reality vegetable productions or no. The same thing may be said of some of the other ingredients that have been found in the ashes of plants, which it is probable they have ab- sorbed ready formed by the root, and deposited unaltered, so that they can scarcely be at all regarded as being the genuine products of vegetation.
1483. Other substances. Besides the substances above enumerated, there are also several others that have been supposed to constitute distinct and peculiar genera of vegetable productions, and which might have been introduced under such a character; such as the mucus, jelly, sarcocol, asparagin, inulin, and ulmin, of Dr. Thomson, as described in his well known System of Chemistry; but as there seems to be some dif. ference of opinion among chemists with regard to them, and a belief entertained that they are but va- rieties of one or other of the foregoing ingredients, it is sufficient for the purposes of this work to have merely mentioned their names. Several other substances of a distinct and peculiar character have been suspected to exist in vegetable productions: such as the febrifuge principle of Seguin, as discovering itself in Peruvian bark; the principle of causticity or acridity of Senebier, as discovering itself in the roots of ranunculus bulbosus, scilla maritima, bryonia alba, and arm maculatum, in the leaves of digitalis pur- purea, in the bark of daphne mezereon, and in the juice of the spurges, to which may be added the fluid secreted from the sting of the common nettle, the poisons inherent in some plants, and the medical virtues inherent in others; together with such peculiar principles as may be presumed to exist in such regions of the vegetable kingdom as remain yet unexplored. The important discoveries which have already re. sulted from the chemical analysis of vegetable substances encourage the hope that further discoveries will be the result of further experiment; and from the zeal and ability of such chemists as are now directing their attention to the subject, every thing is to be expected.:
Sect. IJ. Simple Products.
1484. A very few constituent and uncompounded elements include all the compound in- gredients of vegetables. The most essential of such compounds consist of carbon, oxygen, and hydrogen; a small proportion of nitrogen is said to be tound only in cru- ciform plants. The remaining elementary principles which plants have been found to contain, although they may he necessary in the vegetable economy, yet they are by no means principles of the first importance, as occurring only in small proportions, and being dependent in a great measure on soil and situation; whereas the elements of car- bon, oxygen, and hydrogen, form as it were the very essence of the vegetable subject, and constitute by their modifications the peculiar character of the properties of the plant. This is conspicuously exemplified in the result of the investigations of Gay Lussac, and Thenard, who have deduced from a series of the most minute and delicate experiments the three following propositions, which they have dignified by the name of Laws of Ve- getable Nature(Trazté de Chem. Element. tom. iii. chap. ili.):— 1st, Vegetable sub- stances are always acid when the oxygen they contain is to the hydrogen in a greater proportion than in water; 2dly, Vegetable substances are always resinous, or oily, or spirituous, when the oxygen they contain is to the hydrogen in a smaller proportion than in water; 3dly, Vegetable substances are neither acid nor resinous, but saccharine, or mucilaginous, or analogous to woody fibre or starch, when the oxygen and hydrogen they contain are in the same proportion as in water.(See Dr. Thomson’s System of Chemistry.)
Cuar. IV. Functions of Vegetables.
1485. The life, growth, and propagation of plants necessarily involves the several following topics: germination, nutriment, digestion, growth and developement of parts, anomalies of vegetable developement, sexuality of vegetables, impregnation of the vegetable germen, changes consequent upon impregnation, propagation and dispersion of the species, causes limiting the dispersion of the species, evidence and character of vegetable vitality.
Secr. I. Germination of the Seed.
1486. Germination is that act or operation of the vegetative principle by which the embryo is extricated from its envelopes, and converted into a plant.‘This is univer- sally the first part of the process of vegetation. For it may be regarded as an indu- bitable fact, that all plants spring originally from seed. The conditions necessary to germination relate either to the internal state of the seed itself, or to the circumstances in which it is placed, with regard to surrounding substances.
1487. The first condition necessary to germination is, that the seed must have reached maturity. Un- ripe seeds seldom germinate, because their parts are not yet prepared to form their chemical combinations on which germination depends.‘There are some seeds, however, whose germination is said to commence in the very seed-vessel, even before the fruit is ripe, and while it is yet attached to the parent plant. Such are those of the tangekolli of Adanson, and agave vivipara of East Florida, as well as of the cyamus nelumbo of Sir J. E. Smith, or sacred bean of India; to which may be added the seeds of the common garden-radish, pea, lemon,&c. But these are examples of rare occurrence; though it is sometimes necessary to sow or plant the seed almost as soon as it is fully ripe, as in the case of the coffee-bean; which will not germinate unless it is sown within five or six weeks after it has been gathered. But most seeds, if guarded from external injury, will retain their germinating faculty for a period of many years. This has been proved by the experiment of sowing seeds that have been long so kept; as well as by the deep ploughing up of fields that have been long left without cultivation. A field that was thus ploughed up near Dunkeld, in Scotland, after a period of forty years’ rest, yielded a considerable blade of
suas 1
guts thot jen fret 18 re eed 0 pss od ithe harrowing Of
{ third cond i germinate at ot jggd in their prope cure; for thes thaed, and the fet fret species Of$20 vrin diferent clima ihe same period, 0 nation must of conse elves fo our notice thateeods which Wil togerminae n the sp
snsorted from the
ters bouse plants, from V degree, otherrise the 140), A fourth cond itthey are kept perfe uation, Hence raid| seeds and if no rain of water applied is no thereis too little, thes same, however, with ven partially immers vhich he placed me vhich germinated a tilily immersed in when wholly submer: hare been also known 181, Ajifth conditi mateif placed in a va Fhich he then exhav the air, which is thu ho seed Will germina certain proportion of ofall seeds, and the boldt found that th water impregnated y of three hours, tho
1499, The ner seeds, even wher a shorter, and of Whose seeds are leguminous pla order rosaceous D dicates the periods Adanson—
Wheat Millet seeg Spinage, Be, Mug i, Moy niseed 4 ra tr
1499, Physical ph bt lave been Just s a the Drolongat tng through its %'S extremity doy “10 the process of »Osledon ot oty "ether acotyledono is oak), T TMSHed pith ones,
f the nl ie i betieen t “tn in ). the dey
\v)) 0 le cq 1 Open
Pare Ty,
mie Boox I. GERMINATION OF THE SEED. 207 +® Sid Of some
ble they ha ue
sale ab. black oats without sowing. It could have been only by the plough’s bringing up to the surface, seeds that
Satded ag had been formerly too deeply lodged for germination.
others that 1488, The second condition is, that the seeds sown must be defended from the action of the rays of light. Which mii ht ral This has no doubt been long Known to be a necessary condition of germination, if we regard the practice inulin an ine of he. harrowing or raking in of the grains or seeds sown by the farmer or gardener as being founded A~_ tain, upon it.
ane thf. P1480, A third condition necessary to germination is the cacess of heat. No seed has ever been known this vik a Va. to germinate at or below the freezing point. Hence seeds do not germinate in winter, even though arate 0 have lodged in their proper soil. But the vital principle is not necessarily destroyed in consequence of this ni disoreni exposure; for the seed will germinate still, on the return of spring, when the ground has been again self aie Heel thawed, and the temperature raised to the proper degree, But this degree varies considerably in dif. 8 of diptan ferent species of seeds, as is obvious from observing the times of their germination, whether in the same be added t Spur, or in different climates. For if seeds which naturally sow themselves, germinate in different climates at the med vt the same period, or in the same climate at different periods, the temperature necessary to their germi- tin a al Virtues nation must of consequence be different. Now these cases are constantly occurring and presenting them- Tite t selves to our notice; and have also been made the subject of particular observation. Adanson found
aay re that seeds which will germinate in the space of twelve hours in an ordinary degree of heat may be made a Tes Wil to germinate in the space of three hours by exposing them to a greater degree of heat; and that seeds » ate NOW directing transported from the climate of Paris to that of Senegal, have their periods of germination accelerated from one to three days.(Iamilles des Plantes, vol.i. p. 84.) Upon the same principle, seeds transported from a warmer to a colder climate, have their periods of germination protracted till the temperature of the latter is raised to that of the former. This is well exemplified in the case of green-house and hot- house plants, from which it 1s also obvious that the temperature must not be raised beyond a certain
1€ compound in. degree, otherwise the vital principle is totally destroyed. J i i F:
nsist_ of ene__ 1490. A fourth condition necessary to germination is the access of moisture._Seeds will not germinate arnon, if they are kept perfectly dry. Water, therefore, or some liquid equivalent to it, is essential to germi-
und only in(ru nation. Hence rain is always acceptable to the farmer or gardener, immediately after he has sown his
seeds; and if no rain falls, recourse must be had, if possible, to artificial watering. But the quantity
» been fi found to of water applied is not a matter of indifference. There may be too little, or there may be too much. If
they are by no there is too little, the seed dies for want of moisture; if there is too much, it then rots. The case is not the Proportions, and same, however, with all seeds. Some can bear but little moisture, though others will germinate even slemrenres when partially immersed; as was proved by an experiment of Du Hamel’s, at least in the case of pease, Clements of car- which he placed merely upon a piece of wet sponge, so as to immerse them by nearly the one-half, and egetable Subject, which germinated as if placed in the soil. But this was found to be the most they could bear; for when
ties of the plant totally immersed in the water they rotted. There are some seeds, however, that will germinate even mine pat, when wholly submersed. The seeds of aquatics must of necessity germinate under Water; and pease
Gay Luss, and have been also known to do so under certain conditions. cate experiments 1491. A fifth condition necessary to germination is the access of atmospheric air. Seeds will not germi- nate if placed in a vacuum. Ray introduced some grains of lettuce-seed into the receiver of an air-pump,
of Laws of Ve. which he then exhausted. The seeds did not germinate. But they germinated upon the re-admission of Vevetable sub. the air, which is thus proved by consequence to be necessary to their germination. Achard proved that fea, no seed will germinate in nitrogene gas, or carbonic acid gas, or hydrogene gas, except when mixed with a Ben In a greater certain proportion of oxygene gas; and hence concluded that oxygene gas is necessary to the germination 10uS, Or ally, or of all seeds, and the only constituent part of the atmospheric air which is absolutely necessary. Hum-
r proportion than boldt found that the process of germination is accelerated by means of previously steeping the seed in ey} water impregnated with oxymuriatic acid. Cress-seed treated in this manner germinated in the space It saccharine, or of three hours, though its ordinary period of germination is not less than thirty-two hours.
nd hydrogen th 1492. The period necessary to complete the process of germination is not the same in all
m of Chetry) seeds, even when all the necessary conditions have been furnished. Some species require a shorter, and others a longer period. The grasses are among the number of those plants whose seeds are of the most rapid germination; then perhaps cruciform plants; then leguminous plants; then labiate plants; then umbelliferous plants; and in the last order rosaceous plants, whose seeds germinate the slowest. The following table in- dicates the periods of the germination of a considerable variety of seeds, as observed by Adanson:—
: Days. Days. Days es the several Wheat, Millet-seed: 1\adish, Beet-root--) Hyssop-—= i) it 5 Spinage, Beans, Mus‘ard 3 Barley--- ia, Parsley---- 40 or 50 ement of parts, Lettuce, Aniseed-- 4 Orache- Splat ea he) Almond, Chestnut, Peach 1 year nation of the Melon, Cucumber, Cress- Ue. Purslain---=) ag Rose, Hawthorn, Filbert- 2 years. nation seed Seema ait N See Cabbage- 3:58 6.3)
and dispersion
vd character of 1493. Physical phenomena. When aseed is committed to the soil under the conditions d charact A
that have been just specified, the first infallible symptom of germination is to be deduced from the prolongation of the radicle(fig: 230 a.}, 230
bursting through its proper integuments, and direct- ing its extremity downwards into the soil. The next step in the process of germination is the evolution of the cotyledon or cotyledons(c), unless the seed is al- beste together acotyledonous, or the cotyledons hypogean, 1s necessi) as inthe oak|b). The next step, in the case of seeds circumstant’> furnished with cotyledons, is that of the extrication of the plumelet(c), or first real leaf, from within or
e by which the This is univer das an ind
Ue
maturity. Une from between the cotyledon or cotyledons, and its lc expansion in the open air. The last and concluding J, WW : parent plat. step is the developement of the rudiments of a stem| v se(d), if the species is furnished with a stem, and the“\\ mg cometimt plant is complete. Whatever way the seed may be yp he cof bea deposited, the invincible tendency of the radicle is to Se gn a descend and fix itself in the earth; and of the plumelet to ascend into the air. Many at; 38 vel Ra have been offered to account for this. Knight accounts for it on the old ‘that was th ut revived principle of gravitation. Keith conjectures that it takes place from a power
eraule blade 0
Q 2
SCIENCE OF AGRICULTURE. Parr IT.
G28
inherent in the vegetable subject, analogous to what we call instinct in the animal sub- ject, infallibly directing it to the situation best suited to the acquisition of nutriment and consequent developement of its parts.
1494. The chemical phenomena of germination consist chiefly in the changes that are effected in the nutriment destined for the support and developement of the embryo till it is converted into a plant. This nutriment either passes through the cotyledons, or is contained in them; because the embryo dies when they are prematurely cut off: But the farinaceous substance of the cotyledons, at least in exal- buminous seeds, is a proof that they themselves contain the nutriment. They are to be regarded, therefore, as repositories of the food destined for the support of the embryo in its germinating state. And ifthe seed is furnished with a distinct and separate albumen, then is the albumen to be regarded as the repo- sitory of food, and the cotyledon or cotyledons as its channel of conveyance. But the food thus contained: in the albumen or cotyledons is not yet fitted for the immediate nourishment of the embryo. Some previous preparation is necessary; some change must be effected in its properties. And this change is effected by the intervention of chemical agency. The moisture imbibed by a seed placed in the earth is immediately absorbed by the cotyledons or albumen, which it readily penetrates, and on which it imme- diately begins to operate a chemical change, dissolving part of their farina, or mixing with their oily particles, and forming a sort of emulsive juice. The consequence of this change is a slight degree of fermentation, induced, perhaps, by the mixture of the starch and gluten of the cotyledons in the water which they have absorbed, and indicated by the extraction of a quantity of carbonic acid gas, as well as by the smell and taste of the seed. This is the commencement of the process of germination, which takes place even though no oxygene gas is present. But if no oxygene gas is present, then the process stops; which shows that the agency of oxygene gas is indispensable to germination. Accordingly, when oxygene gas is present it is gradually inhaled by the seed; and the farina of the cotyledons is found to have changed its savor. Sometimes it becomes acid, but generally sweet, resembling the taste of sugar; and is consequently converted into sugar or some substance analogous to it. This is a further proof that a degree of fermentation has been induced; because the result is precisely the same in the process of the fermentation of barley when converted into malt, as known by the name of the saccharine fermentation; in which oxygene gas is absorbed, heat and carbonic acid evolved, and a tendency to germination indi- cated by the shooting of the radicle. The effect of oxygen, therefore, in the process, is that of converting the farina of the albumen or cotyledons into a mild and saccharine food, fit for the nourishment of the infant plant by diminishing the proportion of its carbon, and in augmenting, by consequence, that of its oxygen and hydrogen.‘The radicle gives the first indications of life, expanding and bursting its integu- ments, and at length fixing itself in the soil: the plumelet next unfolds its parts, developing the rudi- ments of leaf, branch, and trunk: and, finally, the seminal leaves decay and drop off; and the embryo has been converted into a plant, capable of abstracting immediately from the soil or atmosphere the nourishment necessary to its future growth.
Secr. II. ood of the vegetating Plant.
1495. The substances which plants abstract from the soil or atmosphere, or the food of the vegetating plant, have long occupied the phytological enquirer. What then are the com- ponent principles of the soil and atmosphere? The investigations and discoveries of modern chemists have done much to elucidate this dark and intricate subject. Soil, in general, may be regarded as consisting of earths, water, vegetable mould, decayed animal substances, salts, ores, alkalies, gases, perhaps in a proportion corresponding to the order in which they are now enumerated; which is at any rate the fact with regard to the three first, though their relative proportions are by no means uniform. Thé atmosphere has been also found to consist of at least four species of elastic matter— nitrogen, oxygen, carbonic acid gas, and vapor; together with a multitude of minute particles detached from the solid bodies occupying the surface of the earth, and wafted upon the winds. The two former ingredients exist in the proportion of about four to one; carbonic acid gas in the proportion of about one part in 100; and vapor in proportion still less. Such then are the component principles of the soil and atmosphere, and sources of vege- table nourishment. But the whole of the ingredients of the soil and atmosphere are not taken up indiscriminately by the plant and converted into vegetable food, because plants do not thrive indiscriminately in all varieties of soil. Part only of the ingredients are selected, and in certain proportions: as is evident from the analysis of the vegetable sub- stance given in the foregoing chapter, in which it was found that carbon, hydrogen, oxygen, and nitrogen, are the principal ingredients of plants; while the other ingredients contained in them occur but in very small proportions. It does not however follow, that these ingredients enter the plant in an uncombined and insulated state, because they do not always so exist in the soil and atmosphere; it follows only that they are inhaled or ab- sorbed by the vegetating plant under one modification or another.‘The plant then does not select such principles as are the most abundant in the soil and atmosphere; nor in the proportions in which they exist; nor in an uncombined and insulated state. But what are the substances actually selected; in what state are they taken up; and in what proportions? In order to give arrangement and elucidation to the subject, it shall be considered under the following heads: Water, Gases, Vegetable Extracts, Salts, Earths, Manures.
1496. Water. As water is necessary to the commencement of vegetation, so also is it necessary to its progress. Plants will not continue to vegetate unless their roots are supplied with water; and if they are kept long without it, the leaves will droop and become fiaccid, and assume a withered appearance. Now this is evidently owing to the loss of water; for if the roots are again well supplied with water, the weight of the plant is increased, and its freshness restored. But many plants will grow, and thrive, and effect the developement of all their parts, if the root is merely immersed in water, though not fixed in the soil. Tulips, hyacinths, and a variety of plants with bulbous
Soot I
nots, my be 9 wll also vegeta grigton.[ta seetble lime ay wil vegetal ere hel total it not follow th hich they Te,
cates and thea thought o have ¢ af the serenteent
eeath century D Dy Hamel, and the plant, Was sul Du Hamel reared considerable size, tat they died. a wether they wou watered ever so Te progress every Ye wry bad state, 1 sle food of plant able substance, ey in water, do yet a 1497, Gases, df plants, reeours believed that the 1 ferent ingredients indifferent ways, founded on no py that atmospheric as may be seen b of air, and plan Weak and stunte scale, Tfaplan begins to languis the exhausted re the germination subject is, that at food of Plants,| only of the compo of vegetable mute order oftheir reve FES, The fit oft Fe“ Pe ecu pure tattnie wtih Xie ra te Tat “HUed to the leaves an
sat least within Mahe of Plants, itis y ta nh Thich it exits i “eal to their or AS Oxygen jg ee
SOL Vevetatig {Of the Vegetable
h Lh) Ithout handing eto{he bough an
But whey»
Ut Wen a : MOsphere jas( ry oe ent of th TR wet ofthe y Thoueh Nlrogeng «Ot atfording
Pano TY,
: Boox I. FOOD OF THE VEGETATING PLANT. 229 imal sub.
riment and roots, may be so reared, and are often to be met with so vegetating; and many plants
will also vegetate though wholly immersed. Most of the marine plants are of this de-
fected in the scription. It can searcely be doubted, therefore, that water serves for the purpose of a
into a pla: oe. Si e cae vegetable aliment. But if plants cannot be made to vegetate without water; and if JO les=
they will vegetate, some when partly immersed without the assistance of soil; and some
N exal. Hoe even when totally immersed, so as that no other food seems to have access to them; does ‘ ANG If th- 5:. 7::: ed au ibear it not follow that water is the sole food of plants, the soil being merely the basis on ~ eo. z>= es mre ae 7 thus contained which they rest, and the receptacle of their food? This opinion has had many advo-
cates; and the arguments and experiments adduced in support of it were, at one time, thought to have completely established its truth. It was indeed the prevailing opinion of the seventeenth century, and was embraced by several philosophers even of the eight- eenth century; but its ablest and most zealous advocates were Van Helmont, Boyle, Du Hamel, and Bonnet, who contended that water, by virtue of the vital energy of the plant, was sufficient to form all the different substances contained in vegetables. Du Hamel reared in the above manner plants of the horse-chestnut and almond to some considerable size, and an oak till it was eight years old. And, though he informs us
embryo, Some l this che
lange jg
earth is NCO it imme. With their oily slight desrs 2 of
they
ons ound that they died at last only from neglect of watering: yet it seems extremely doubtful ASte OF Suigar.: rad 3 a]
arther proot tha whether they would have continued to vegetate much longer, even if they had been le proce watered ever so regularly; for he admits, in the first place, that they made less and less
progress every year; and, in the second place, that their roots were found to be ina nveting very bad state. The result of a great variety of experiments is, that water is not the ae sole food of plants, and is not convertible into the whole of the ingredients of the veget-
ao ee able substance, even with the aid of the vital energy; though plants vegetating merely in water, do yet augment the quantity of their carbon.
1497. Gases. When it was found that water is insufficient to constitute the sole food of plants, recourse was next had to the assistance of the atmospheric air; and it was believed that the vital energy of the plant, is at least capable of furnishing all the dif- ferent ingredients of the vegetable substance, by means of decomposing and combining, the food of the in different ways, atmospheric air and water. But as this extravagant conjecture is founded on no proof, it is consequently of no value. It must be confessed, however, that atmospheric air is indispensably necessary to the health and vigor of the plant, as may be seen by looking at the different aspects of plants exposed to a free circulation of air, and plants deprived of it: the former are vigorous and luxuriant; the latter weak and stunted. It may be seen also by means of experiment even upon a small scale. Ifa plant is placed under a glass to which no new supply of air has access, it soon begins to languish, and at length withers and dies; but particularly if it is placed under the exhausted receiver of an air-pump; as might indeed be expected from the failure of Fle detctel the germination of the seed in similar circumstances. The result of experiments on this ci subject is, that atmospheric air and water are not the only principles constituting the ‘carbone aid food of plants. But as In germination, so also in the progress of vegetation, it is part
i only of the component principles of the atmospheric air that are adapted to the purposes of vegetable nutrition, and selected by the plant asa food. Let us take them in the order of their reversed proportions.
* atmosphere the
n are the com. discoveries of ject. Soil, in lecayed animal ng to the order rd to the three itmosphere has ogell, OxyseN,
ion still less. irces of vege- phere are not , 1498. The effect of the application of carbonic acid gas was found to be altogether prejudicial in the pro-
ecause plants CO);:, saa ie el cess of the germination of the seed. But in the process of subsequent vegetation its application has been
redients are found, on the contrary, to be extremely beneficial. Plants will not indeed vegetate in an atmosphere of esetable sub- pure carbonic acid, as was first ascertained by Dr. Priestley, who found that sprigs of mint growing in
hydrogen water, and placed over wort in a state of fermentation, generally became quite dead in the space of a day, ny hy io’ and did not even recover when put into an atmosphere of common air. Of a number of experiments the or Ingredients results are— Ist, That carbonic acid gas is of great utility to the growth of plants vegetating in the sun, as i follow, that applied to the leaves and branches; and whatever increases the proportion of sthis gas in their atmo-
sphere, at least within a given degree, forwards vegetation; 2d, That, as applied to the leaves and
cause they do branches of plants, it is prejudicial to their vegetation in the shade, if administered in a proportion beyond pbaled or ab. that in which it exists in atmospheric air; 3d, That carbonic acid gas, as applied to the roots of plants, is qe also beneficial to their growth, at least in the more advanced stages of vegetation.
ant then oe 1499, As oxygen is essential to the commencement and progress of germination, so also it is essential to here; nor 1 the progress of vegetation. It is obvious, then, that the experiment proves that it is beneficial to the ate, But growth of the vegetable as applied to the root; necessary!to the developement of the leaves; and to the
| sta es developement of the flower and fruit. The flower-bud will not expand if confined in an atmosphere de- and in what prived of oxygen, nor will the fruit ripen. Flower-buds confined in an atmosphere of pure nitrogen t. it shall be faded without expanding. A bunch of unripe grapes introduced into a globe of glass which was luted by VE hie its orifice to the bough, and exposed to the sun, ripened without effecting any material alteration in its salts, Eartls, atmosphere. But when a bunch was placed in the same circumstances, with the addition of a quantity of
lime, the atmosphere was contaminated, and the grapes did not ripen. Oxygen, therefore, is essential to
Igo is it the developement of the vegetating plant, and is inhaled during the night.‘ j
,$0 als 1500. Though nitrogene gas constitutes by far the greater part of the mass of atmospheric air, it does not
eir roots are seem capable of affording nutriment to plants; for as seeds will not germinate, so neither will plants
| droop and vegetate in it, but for a very limited time, such as the vinca minor, lythrum salicaria, inula dysenterica, -pilobium hirsutum, and polygonum persiearia, that seem to succeed equally well in an atmosphere of
} 5 1e b 5% y= A; E wing to the nitrogene gas as in an atmosphere of common air. Nitrogen is found in almost all vegetables, particularly of the plant in the wood, in extract, and in their green parts, derived, no doubt, from the extractive principle of veget-
ae able mould. tnrive, 1501. Hydrogene gas. A plant of the epilobium hirsutum, which was confined by Priestley in a receiver ] in watel, filled with inflammable air or hydrogen, consumed one third of its atmosphere and was still green, i Hence Priestley inferred, that it serves as a vegetable food, a id constitutes even the true and proper pabulum of the plant. But the experiments of ore do not at all countenance this opinion, O° XY J
ith bulbous
8. ¥, —_— cS Sn st EES a——————————_ ee— Eas a
230 SCIENCE OF AGRICULTURE. Parr IT,
Our conclusion from various experiments is, that hydrogen is unfavorable” to vegetation, and does not
serve as the food of plants. But hydrogen is contained in plants as is evident from their analysis; and if
they refuse it when presented to them in a gaseous state, in what state do they then acquire it? To this
question it is sufficient for the present to reply, that if plants do not acquire their hydrogen in the state of vas. they may at least acquire it in the state of water, which is indisputably a vegetable food, and of Net 7?. o
which hydrogen constitutes one of the component parts.
1502. Vegetable extract. When it was found that atmospheric air and water are not, even conjointly, capable of furnishing the whole of the aliment necessary to the de- velopement of the plant, it was then alleged that, with the exception of water, all sub- stances constituting a vegetable food must at least be administered to the plant ina gaseous state. But this also is a conjecture unsupported by proof; for even with regard to such plants as grow upon a barren rock, or in pure sand, it cannot be said that they receive no nourishment whatever besides water, except in a gaseous state. Many of the particles of decayed animal and vegetable substances, which float in the atmosphere and attach themselves to the leaves, must be supposed to enter the plant in solution with the moisture which the leaves imbibe; and so also similar substances contained in the soil must be supposed to enter it by the root: but these substances may certainly con- tain vegetable nourishment; and they will perhaps be found to be taken up by the plant in proportion to their degree of solubility in water, and to the quantity in which they exist in the soil.. Now one of the most important of these substances is vegetable extract. When plants haye attained to the maturity of their species, the principles of decay begin gradually to operate upon them, till they at length die and are converted into dust or vegetable mould, which, as might be expected, constitutes a considerable proportion of the soil. The chance then is, that it is again converted into vegetable nourishment, and again enters the plant.| But it cannot wholly enter the plant, because it is not wholly soluble in water.’ Part of it, however, is soluble, and consequently capable of being absorbed by the root, and that is the substance which has been denomi- nated extract.
1503. Saussure filled a large vessel with pure mould of turf, and moistened it with distilled or rain water, till it was saturated. At the end of five days, when it was subjected to the action of the press, 10,000 parts in weight of the expressed and filtered fluid yielded, by evaporation to dryness, 26 parts of ex- tract. In a similar experiment upon the mould of a kitchen-garden which had been manured with dung, 10,000 parts of a fluid vielded 10 of extract. And in a similar experiment upou mould taken from a well- cultivated corn-field, 10,000 parts of fluid yielded four parts of extract. Such was the result in these par- ticular cases. But the quantity of extract that may be separated from the common soil is not in general very considerable. After twelve decoctions, all that could be separated was about one eleventh of its weight; and yet this seems to be more than sufficient for the purposes of vegetation: for a soil containing this quantity was found by experiment to be less fertile, at least for peas and beans, than a soil that con- tained only one half or two thirds the quantity. But if the quantity of extract must not be too much, neither must it be too little. Plants that were put to vegetate in soil deprived of its extract, as far as re- peated decoctions could deprive it, were found to be much less vigorous and luxuriant than plants vegetating in soil not deprived of its extract; and yet the only perceptible difference between them is, that the former can imbibe and retain a much greater quantity ot water than the latter. From this last experiment, as well as from the great proportion in which it exists in the living plant, it evidently follows that extract constitutes a vegetable food. Butextract contains nitrogen; for it yields by distillation a fluid impregnated with ammonia. The difficulty, therefore, of accounting for the introduction of nitrogen into the vegeta- ting plant, as well as for its existence in the mature vegetable substance, is done away; for, although the
slant refuses it when presented in a gaseous state, it is plain that it must admit it along with the extract. it seems also probable that a small quantity of carbonic acid gas enters the plant along with the extractive principle, as it is known to contain this gas also.
1504. Salts, in a certain proportion, are found in most plants, such as nitrate, muriate, and sulphate of potass or soda, as has been already shown.‘These salts are known to exist in the soil, and the root is supposed to absorb them in solution with the water by which the plant is nourished. It is at least certain that plants may be made to take up by the roots a considerable proportion of salts in a state of artificial solution. But if salts are thus taken up by the root of the vegetating plant, does it appear that they are taken up as a food? Some plants, it must be confessed, are injured by the application of salts, as is evident from the experiments of Saussure; but others are as evidently benefited by it. Trefoil and lucerne have their growth much accelerated by the application of sul- phate of lime, though many other plants are not at all influenced by its action. The parietaria, nettle, and borage will not thrive, except in such soils as contain nitrate of lime, or nitrate of potass; and plants inhabiting the sea-coast, as was observed by Du Hamel, will not thrive in a soil that does not contain muriate of soda. It has been thought, how- ever, that the salts are not actually taken up by the root, though converted to purposes of
?£= Ge z< 5%.. es.“a>”~ utility by acting as astringents or Corrosives In stopping up the orifices cf the vessels of the plant, and preventing the admission of too much water: but it is to be recollected that the salts in question are found by analysis in the very substance of the plant, and must consequently have entered in solution. It has been also thought that salts are favorable to vegetation only in proportion as they hasten the putrefaction of vegetable substances contained in the soil, or attract the humidity of the atmosphere. But sulphate of lime Is not deliquescent; and if its action consist merely in accelerating putrefaction, why is its beneficial effect confined but to a small number of plants? Grisenthwaite(New Theory of Agriculture, 1819, p. 111.) answers this question by stating, that as in the principal grain-crops which interest the agriculturist, there exists a particular saline substance, pe-
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lant ech, 8 desane disci ira notable qu prelate, never let fut of phosphate
fu gypsum his wt being underst he accomplish dient may be ess proportion of its carbonic acid; am afventitiousand oot an event ull proportion al tat its esential asesof all vegetab
1505, Barths, dating or earthy earls and as the ty vegetable substa rad to thetr oni shuts? Chielly fr the vessels of the p vlution tu water,| sloht degree solub very small that it s tht the quantity Tecessary to its he reaetation. Suc Woodward's exp
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1506. The proporti which they grow. 1 calcareous mountain leaves of the same p only 16°75 of earthy i: the earthy pate Margray has shown| should not reach the although the earths not of themselves sy together lime, alumin soils, and moistened Which germinated j exhausted Itisp ad perhaps necessary|
Stee of nourishment to
150%, Supply of Irom the atmospher ted; for they are state of the globe toually Varying, s¢ bough in the course shee, therefore, th “hott of vegetable "ae, it does not te with regard to g “Dore within the eae by altering th ty of food in the f el by Dulveristj ‘ration and torrif et SO other subs rn ang distrib
ition It,(dee Boo 5M 0 staf Mens, may Yet be "; a bether by. “oud he the( age by what ny “08 ney One
Parr IT,
Md does not lysis s ang if It? To thig h the state of food, and of
ter are Not,
to the de. ter, all sub. © plant ing r even with ‘be said that Q, Many of - atmosphere solution with tained in the ‘ertainly con. en up by the itity in which '§ Is Vegetable » principles of are converted a considerable into vegetable plant, because
consequently been denomi.
| distilled or rain n of the press, al parts of ex. nured with dung, aken from a well. llt in these par- not in general ne eleventh of its Fa soil containing in a soil that con. not be too much, rract, as far as re- plants vegetating ;, that the former st experiment, 28 pws that extract luid impregnated into the vegeta for, although the with the extract, h the extractive
rate, muriate, are known to the water by de to take up tion. But if that they are application of ntly benefited cation of sul- action,‘The itrate of lime, » Du Hamel, hought, how- 0 purposes of vessels of the ollected that f, and must re fayorable o substances te of lime is ., why is its New Theory he principal pstarice, Pe
Boox I. FOOD OF THE VEGETATING PLANT. 231
culiar to each, so, if we turn our attention to the clovers and turnips, we shall still find the same discrimination. Saintfoin, clover, and lucerne, have long been known to con- tain a notable quantity of gypsum(sulphate of lime); but such knowledge, very strange to relate, never led to the adoption of gypsum as a manure for those crops, any more than that of phosphate of lime for wheat, or nitrate of soda, or potassa for barley. It is true that gypsum has been long, and in various places, recommended as a manure, but its uses not being understood, it was recommended without any reference to crop, or indeed to the accomplishment of any fixed object. It is very well known that some particular ingre- dient may be essential to the composition of a body, and yet constitute but a very small proportion of its mass. Atmospheric air contains only about one part in the 100 of carbonic acid; and yet no one will venture to affirm that carbonic acid gas is merely an adventitious and accidental element existing by chance in the air of the atmosphere, and not an essential ingredient in its composition, Phosphate of lime constitutes but a very small proportion of animal bodies, perhaps not one part in 500; and yet no one doubts that it is essential to the composition of the bones. But the same salt is found in the ashes of all vegetables; and who will say that is not essential to their perfection?
1505. Earths. As most plants have been found by analysis to contain a portion of alkaline or earthy salts, so most plants have been found to contain also a portion of earths: and as the two substances are so nearly related, and so foreign in their character to vegetable substances in general, the same enquiry has consequently been made with regard to their origin. Whence are the earths derived that have been found to exist in plants? Chiefly from the soil. Butin what peculiar state of combination do they enter the vessels of the plant? The state most likely to facilitate their absorption is that of their solution in water, in which all the earths hitherto found in plants are known to be in a slight degree soluble. Ifit be said that the proportion in which they are soluble is so very small that it scarcely deserves to be taken into the account, it is to be recollected that the quantity of water absorbed by the plant is great, while that of the earth necessary to its health is but little, so that it may easily be acquired in the progress of vegetation. Such is the manner in which their absorption seems practicable: and Woodward's experiments afford a presumption that they are actually absorbed by the root.
1506. The proportion of earths contained in the ashes of vegetables depends upon the nature of the soil in which they grow.‘The ashes of the leaves of the rhododendron ferrugineum, growing on Mount Jura, a calcareous mountain, yielded 45:25 parts of earthy carbonate, and only 0°75 of silica. But the ashes of leaves of the same plants, growing on Mount Breven, a granitic mountain, yielded two parts of silica, and only 16°75 of earthy carbonate. It is probable however, that plants are not indebted merely to the soil for the earthy particles which they may contain. They may acquire them partly from the atmosphere. Margray has shown that rain-water contains silica in the proportion of a grain toa pound; which, if it should not reach the root, may possibly be absorbed along with the water that adheres to the leaves. But although the earths are thus to be regarded as constituting a small proportion of vegetable food, they are not of themselves sufficient to support the plant, even with the assistance of water. Giobert mixed together lime, alumine, silica, and magnesia, in such proportions as are generally to be met with in fertile soils, and moistened them with water. Several different grains were then sown in this artificial soil, which germinated indeed, but did not thrive; and perished when the nourishment of the cotyledons was exhausted. It is plain, therefore, that the earths, though beneficial to the growth of some vegetables, and perhaps necessary to the health of others, are by no means capable of affording any considerable de- gree of nourishment to the plant.
1507. Supply of food by manures and culture. With regard to the food of plants derived from the atmosphere, the supply is pretty regular, at least, in as far as the gases are con- cerned; for they are not found to vary materially in their proportions on any part of the surface of the globe; but the quantity of moisture contained in the atmosphere is con- tinually varying, so that in the same season you have not always the same quantity, though in the course of the year the deficiency is perhaps made up. From the atmo- sphere, therefore, there is a regular supply of vegetable food kept up by nature for the support of vegetable life, independent of the aid of man: and if human aid were even wanted, it does not appear that it could be of much avail. But this is by no means the case with regard to soils; for if soils are less regular in their composition, they are at least more within the reach of human management. The supply of food may be in- creased by altering the mechanical or chemical constitution of soils; and by the addi- tion of food in the form of manures. The mechanical constitution of soils may be altered by pulverisation, consolidation, draining, and watering; their chemical properties by aeration and torrification; both mechanical and chemical properties, by the addition of earths or other substances; and manures, either liquid or solid, are supplied by irri- gation and distribution of dungs and other nourishing matters, with or without their interment.(See Boox III.)
1508. Soils in a state of culture, though consisting originally of the due proportion of ingredients, may yet become exhausted of the principle of fertility by means of too frequent cropping; whether by repetition or rotation of the same, or of different crops. In this case, it should be the object of the phytologist, as well as of the practical cultivator, to ascertain by what means fertility is to be restored to an exhausted soil, or commu- nicated to a new one. In the breaking up of new soils, if the ground has been wet or
Q4
0 po A can mean
Slee ere a
232 SCIENCE OF AGRICULTURE, Parr If.
marshy, as is frequently the case, it is often sufficient to prepare it merely by means of draining off the superfluous and stagnant water, and of paring and burning the turf upon the surface. If the soil has been exhausted by too frequent a repetition of the same crop, it often happens that a change of crop will answer the purpose of the cultivator; for although a soil may be exhausted for one sort of grain, it does not necessarily follow that itis also exhausted for another. And accordingly, the practice of the farmer is to sow his crops in rotation, having in the same field a crop, perhaps, of wheat, barley, beans, and tares in succession; each species selecting in its turn some peculiar nutriment, or requiring, perhaps, a smaller supply than the crop that has preceded it. But even upon the plan of rotation, the soil becomes at length exhausted, and the cultivator obliged to have recourse to other means of restoring its fertility. In this case, an interval of re- pose is considerably efficacious, as may be seen from the encreased fertility of fields that have not been ploughed up for many years, such as those used for pasture; or even from that of the walks and paths in gardens when they are again broken up. Hence also the practice of fallowing, and of trenching or deep ploughing, which in some cases has nearly the same effect.
1509. The fertility of a soil is restored, in the case of draining, by means of its carrying off all such superfluous moisture as may be lodged in the soil, which is well known to be prejudicial to plants not naturally aquatics, as well as by rendering the soil more firm and compact. In the case of burning, the amelioration is effected by means of the decomposition of the vegetable substances contained in the turf, and sub- jected to the action of the fire, which disperses part also of the superfluous moisture, but leaves a residue of ashes favorable to future vegetation. In the case of the rotation of crops, the fertility is not so much restored as more completely developed and brought into action; because the soil, though exhausted for one species of grain, is yet found to be sufficiently fertile for another, the food necessary to each being different, or required in Jess abundance. In the case of the repose of the soil, the restored fertility may be owing to the decay of vegetable substances that are not now carried off in the annual crop, but left to augment the proportion of vegetable mould; or to the accumulation of fertilising particles conveyed to the soil by rains; or to the continued abstraction of oxygen from the atmo- sphere. In the case of fallows, it is owing undoubtedly to the action of the atmospheric air upon the soil, whether in rendering it more friable, or in hastening the putrefaction of noxious plants; or it is owing to the abstraction and accumulation of oxygen. In the case of trenching, or deep ploughing, it is owing to the increased facility with which the roots can now penetrate to the proper depth, and thus their sphere of nourishment is increased. But it often happens that the soil can no longer be ameliorated by any of the foregoing means, or not at least with sufficient rapidity for the purposes of the cultivator; and in this case there must be a direct and actual application made to it of such sub- siances as are fitted to restore its fertility. Hence the indispensable necessity of manures, which consists chiefly of animal and vegetable remains that are buried and finally decom- posed in the soil, from which they are afterwards absorbed by the root of the plant, in a state of solution.
1510. But as carbon is the principal ingredient furnished by manures, as contributing to the nourishment of the plant, and is not itself soluble in water, nor even disengaged by fermentation in a state of purity; under what state of chemical combination is its solu- tion effected? Is it effected in the state of charcoal? It has been thought, indeed, that carbon in the state of charcoal is soluble in water; because water from a dunghill, when evaporated, constantly leaves a residuum of charcoal, as was first ascertained by the ex- periments of Hassenfratz. But there seem to be reasons for doubting the legitimacy of the conclusion that has been drawn from it; for Senebier found that plants whose roots were immersed in water took up less of the fluid in proportion as it was mixed with water from a dunghill. Perhaps then the charcoal of water from a dunghill is held merely in sus- pension, and enters the plant under some other modification. But if carbon is not soluble in water in the state of charcoal, in what other state is it soluble? It is soluble in the state of carbonic acid gas. But is this the state in which it actually enters the root? On this subject phytologists have been somewhat divided in opinion. Senebier endeavors to prove that carbonic acid gas, dissolved in water, supplies the roots of plants with almost all their carbon, and founds his arguments upon the following facts:— In the first place, it is known that carbonic acid gas is soluble in water; in the second place, it is known to be contained in the soil, and generated by the fermentation of the materials composing manures; and, in the next place, it is known to be beneficial to vegetation when applied artificially to the roots, at least in a certain degree, This is evident from the following experiment of Ruckert, as well as from several experiments of Saussure’s, previously related. Ruckert planted two beans in pots of equal dimensions, filled with garden-mould; the one was moistened with distilled water, and the other with water im- pregnated with carbonic acid gas. But the latter appeared above ground nine days sooner than the former, and produced twenty-five beans; while the former produced only
Book I
ffteeds Now! frorable to the in which carbon iter circunsta soending 90 potion of cathe hare yet undetg up from the sil hasts of exper sich be had in which were raise suchas grew 10 ved, Nowift js plain from the seaftatz must ha fushing a Veg plant, The op! lodged, however, carbon may cert insolution, or 0 entering the pla lowing facts:— many soils conta brown or green. aren, But du manures, therefi rendering it cap combination, i but a conjectut root in combini plant itself,
1511. Play my. The foo is taken up by their sap+ this in the lungs: growth,
1512, Dnt. they are enable tion, or inhalat former term i q £4seous fluids,
admit of g doubt actualy inhale it surface, And it {pon the organis. itis not also effec ‘Uppose it to be ¢ at Which the origi ranches, But i Othe lant by wh eandolle found Btseheries hor the influence of ail "OS wil not thr ) the epider “indeed, it may we pars of SI atts Of iro Mer by Theans Bi ofits fog a. Alc op . Lad, di tbe by 4 “Tet cay be ren
x a es PROCESS OF VEGETABLE NUTRITION. 233 ’ by means of ‘the turf Upon 1 of the same he Cultivator- essarily follow he armer is to Wheat, batley, lar Dutriment, It. But even tivator obliged | Interval of rp. ty of fields that > OF even from Hence also the Cases has nearly
fifteen. Now the result of this experiment, as well as the preceding facts, is evidently favorable to the presumption of Senebier, and shows that if carbonic acid is not the state in which carbon enters the plant, it is at least a state preparatory to it; and there are other circumstances tending to corroborate the opinion, resulting from the analysis of the ascending sap of plants.‘The tears of the vine, when analysed by Senebier, yielded a portion of carbonic acid and earth; and as the ascending sap could not be supposed to have yet undergone much alteration, the carbonic acid, like the earth, was probably taken up from the soil. But this opinion, which seems to be so firmly established upon the basis of experiment, Hassenfratz strenuously controverts. According to experiments which he had instituted with an express view to the investigation of this subject, plants which were raised in water impregnated with carbonic acid differed in no respect from such as grew in pure water, and contained no carbon that did not previously exist in the seed. Now if this were the fact, it would be decisive of the point in question. But it is plain from the experiments of Saussure, as related in the preceding section, that Has- senfratz must have been mistaken both with regard to the utility of carbonic acid gas as furnishing a vegetable aliment, and with regard to the augmentation of carbon in the plant. The opinion of Senebier, therefore, may still be correct. It must be acknow- ledged, however, that the subject is not yet altogether satisfactorily cleared up; and that carbon may certainly enter the plant in some state different from that either of charcoal in solution, or of carbonic acid gas. Is not carbonic acid of the soil decomposed before entering the plant? This is a conjecture of Dr. Thomson’s, founded upon the fol- lowing facts:—the green oxide of iron is capable of decomposing carbonic acid; and many soils contain that oxide. Most soils, indeed, contain iron, either in the state of the
Y Means of jis |, which is well Y tendering the n 1S effected by > turf, and sub. 1S Moisture, but t the rotation of
ae brought Into brown or green oxide, and it has been found that oils convert the brown oxide into yet found to be green. But dung and rich soils contain a quantity of oily substance. One effect of , or required in manures, therefore, may be that of reducing the brown oxide of iron to the green, thus nay be owing to rendering it capable of decomposing carbonic acid gas, so as to prepare it for some new crop, but left to combination, in which it may serve as an aliment for plants. All this, however, is tlising patcles but a conjecture; and itis more probable that the carbonic acid of the soil enters the trom the atmo. root in combination with some other substance, and is afterwards decomposed within the the atmospheric plant itself. eon Sect. III. Process of Vegetable Nutrition. ility with which 1511. Plants are nourished in a manner in some degree analogous to the animal econo- nourishment is my.‘The food of plants, whether lodged in the soil, or wafted through the atmosphere, d by any of the is taken up by intro-susception in the form of gases or other fluids: it is then known as ‘the cultivator; their sap; this sap ascends to the leaves, where it is elaborated as the blood of animals is t of such sub. in the lungs; it then enters into the general circulation of the plant, and promotes its ity of manures, growth, finally decom. 1512. Intro-susception. As plants have no organ analogous to the mouth of animals, the plant, ina they are enabled to take up the nourishment necessary to their support only by absorp- tion, or inhalation as the chyle into the animal lacteals, or the air into the lungs. The ontributing t former term is applied to the intro-susception of non-elastic fluids; the latter to that of
lisencaved by gaseous fluids. The absorption of non-elastic fluids by the epidermis of plants does not on is its solu admit of a doubt. It is proved, indisputably, that the leaves not only contain air, but do , indeed, that actually inhale it. It was the opinion of Priestley that they inhale it chiefly by the upper surface. And it has been shown by Saussure, that their inhaling power depends entirely upon the organisation. It has been a question, however, among phytologists, whether it is not also effected by the epidermis of the other parts of the plant. We can scarcely suppose it to be effected by the dry and indurate epidermis of the bark and aged trunks, of which the original organisation is obliterated; nor by that of the larger and more aged branches. But it has been thought there are even some of the soft and succulent parts of the plant by which it cannot be effected, because no pores are visible in their epidermis. Decandolle found no pores in the epidermis of fleshy fruits, such as pears, peaches, and gooseberries; nor in that of roots, or scales of bulbs; nor in any part not exposed to the influence of air and light. It is known, however, that fruits will not ripen, and that roots will not thrive, if wholly deprived of air; and hence it is probable that they inhale it by their epidermis, though the pores by which it enters should not be visible. In the root, indeed, it may possibly enter in combination with the moisture of the soil: but in the other parts of the plant it enters no doubt in the state of gas. Herbs, therefore, and the soft parts of woody plants, absorb moisture and inhale gases from the soil or atmo- sphere by means of the pores of their epidermis, and thus the plant effects the intro- Susception of its food.
1513. Ascent of the sap. The means by which the plant effects the intro susception of its food, is chiefly that of absorption by the root. But the fluids existing in the soil when absorbed by the root, are designated by the appellation of sap or lymph; which, before it can be rendered subservient to the purposes of vegetable nutrition, must either
angbill, when ed by the ex- itimacy of the yse roots were th water from nerely In sus carbon is not It is soluble lly enters the 1, Senebiet yots of plants ts;— Jn the ond place, it he materials 0 vegetation yident from Saussure’s, filled with ) water im nine days duced only
——-
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SCIENCE OF AGRICULTURE. Parr IT. be intermediately conveyed to some viseus proper to give it elaboration, or immediately distributed throughout the whole body of the plant. Our present object, therefore, is that of tracing out the progress of its distribution or ascent. The sap is in motion in one direction or other, if not all the year, at least at occasional periods, as the bleeding of plants in spring and autumn sufficiently illustrates. The plant always bleeds most freely about the time of the opening of the bud; for in proportion as the leaves expand the sap flows less copiously, and when they are fully expanded it entirely ceases. But this sus- pension is only temporary, for the plant may be made to bleed again in the end of the autumn, at least under certain conditions. If an incision is now made into the body of the tree, after the occurrence of a short but sharp frost, when the heat of the sun or mildness of the air begins to produce a thaw, the sap will again flow. It will flow even where the tree has been but partially thawed, which sometimes happens on the south side of a tree, when the heat of the sun is strong and the wind northerly. At the seasons now specified, therefore, the sap is evidently in motion; but the plant will not bleed at any other season of the year. It has been the opinion of some phytologists, that the motion of the sap is wholly suspended during the winter. But though the great cold of winter, as well as the great heat of summer, is by no means so favorable to vegetation as the milder though more changeable temperature of spring and autumn, yet it does not wholly suspend the movement of the sap. Palms may be made to bleed at any season of the year. And although this is not the case with plants in general, yet there is proof suffi- cient that the colds of winter do not, even in this climate, entirely prevent the sap from flowing. Buds exhibit a gradual developement of parts throughout the whole of the winter, as may be seen by dissecting them at different periods. So also do roots. Ever- greens retain their leaves; and many of them, such as the arbutus, laurustinus, and the beautiful tribe of the mosses, protrude also their blossoms, even in spite of the rigor of the season. But all this could not possibly be accomplished, if the motion of the sap were wholly suspended.
1514. Thus the sap is in perpetual motion with a more accelerated or more diminished velocity throughout the whole of the year; but still there is no decided indication, exhibited in the mere circumstance of the plant’s bleeding, of the direction in which the sap is moving at the time; for the result might be the same whether it was passing from the root to the branches, or from the branches to the root. But as the great influx of the sap is effected by means of the pores of the epidermis of the root, it follows that its mo- tion must, at least in the first place, be that of ascent; and such is its direction at the season of the plant’s bleeding, as may be proved by the following experiment:— If the bore or incision that has been made in the trunk is minutely inspected while the plant yet bleeds, the sap will be found to issue almost wholly from the inferior side. If several bores are made in the same trunk, one above another, the sap will begin to flow first from the lower bore, and then from those above it. If a branch of a vine be lopped, the sap will issue copiously from the section terminating the part that remains yet attached to the plant; but not from the section terminating the part that has been lopped off. This proves indubitably that the direction of the sap’s motion, during the season of the plant’s bleeding, is that of ascent. But if the sap flows so copiously during the season of bleed- ing, it follows that it must ascend with a very considerable force; which force has accord- ingly been made the subject of calculation. To the stem of a vine cut off about two feet and a half from the ground, Hales fixed a mercurial gauge which he luted with mastic; the gauge was in the form of a syphon, so contrived that the mercury might be made to rise in proportion to the pressure of the ascending sap. The mercury rose accordingly, and reached, at its maximum, to a height of thirty-eightinches. But this was equivalent to a column of water of the height of forty-three feet three and one-third inches; demon- strating a force in the motion of the sap that, without the evidence of experiment, would have seemed altogether incredible.
1515. Thus the sap in ascending from the lower to the upper extremity of the plant ts propelled with a very considerable force, at least in the bleeding season. But is the as- cending sap propelled indiscriminately throughout the whole of the tubular apparatus, or is it confined in its course, to any particular channel? Before the anatomy of plants had been studied with much accuracy, there was a considerable diversity of opinion on the subject. Some thought it ascended by the bark; others thought that it ascended by the bark, wood, and pith indiscriminately; and others thought it ascended between the bark and wood.‘The first opinion was maintained and supported by Malpighi; and Grew considers that the sap ascends by the bark, wood, and pith, indiscriminately. Du Hamel stript several trees of their bark entirely, which continued, notwithstanding, to live for many years, protruding new leaves and new branches as before. Knight stript the trunk of a number of young crab-trees of a ring of bark half an inch in breadth, but the leaves were protruded, and the branches elongated, as if the operation had not been performed. Du Petit Thouars removed the central wood and pith from the stems of several young sycamore trees, leaving the upper part to be supported only by four pillars of bark: in
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1518, Thus if ing th ah longitudinal fibre shown thatthe ye are simple tubes,} which of these, the bas been furnished ‘ple and horse. lak mith insulat InUions gbtained *tanining the tra ittusion had ascen las, but had not tom th Caled th Thus
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Boox I. PROCESS OF VEGETABLE NUTRITION. 85 others he removed the bark, liber, and alburnum, leaving the upper part of the tree to be supported solely by the central wood. In both cases the trees lived, so that he concludes the bark and wood can alternately act as the sap’s conductor.(Hist. d’wn Morceau de Boise Hort. Tour. 481.)
1516. That the sap does not ascend exclusively by the bark is thus rendered sufficiently evident. But itis equally evident that it does not ascend by the pith, at least after the first year; for then, even upon Grew’s own supposition, it becomes either juiceless or wholly extinct: and even during the first year it is not absolutely necessary, if at all subservient to the ascent of the sap, as is proved by an experiment of Knight’s. Having contrived to abstract from some annual shoots a portion of their pith, so as to interrupt its continuity, but not otherwise materially to injure the fabric of the shoot, Knight found that the growth of the shoots which had been made the subject of experiment was net at all affected by it.
1517. The sap ascends neither by the bark nor pith, but by the wood only. But the whole mass of the wood throughout is not equally well adapted for the purpose of con- veying it. he interior and central part, or that part that has acquired its last degree of solidity, does not in general afford it a passage. This is proved by what is called the girdling of trees, which consists in making a circular gap or incision quite round, the stem, and to the depth of two or three inches, so as to cut through both the bark and alburnum. An oak-tree on which Knight had performed this operation, with a view to ascertain the channel of the sap’s ascent, exhibited not the slightest mark of vegetation in the spring following.‘The sap then does not ascend through the channel of the matured wood. But if the sap ascends neither through the channel of the bark, nor pith, nor matured wood, through what other channel does it actually ascend? The only remaining channel through which it can possibly ascend is that of the alburnum. In passing through the channel of the alburnum, does the sap ascend promiscuously by the whole of the tubes composing it, or is it confined in its passage to any peculiar set? The earliest conjectures recorded on this subject are those of Grew and Malpighi, who, though they maintained that the sap ascends chiefly by the bark, did not yet deny that it ascends also partly by the alburnum or wood. It occurred to succeeding phytologists that the progress of the sap, and the vessels through which it passes, might be traced or ascer~ tained by means of making plants vegetate in colored infusions. Du Hamel steeped the extremities of branches of the fig, elder, honeysuckle, and filbert in common ink. In examining the two former, after being steeped for several days, the part immersed was found to be black throughout, but the upper part was tinged only in the wood, which was colored for the length of a foot, but more faintly and partially in proportion to the height. The pith, indeed, exhibited some traces of ink, but the bark and buds none. In some other examples the external layers of the wood only were tinged. In the honey- suckle the deepest shade was about the middle of the woody layers; and in the filbert there was also observed a colored circle surrounding the pith, but none in the pith itself, nor in the bark.
1518. Thus if is proved that the sap ascends through the vessels of the longitudinal Sjibre composing the alburnum of woody plants, and through the vessels of the several bundles of longitudinal fibre constituting the woody part of herbaceous plants. But it has been already shown that the vessels composing the woody fibre are not all of the same species. There are simple tubes, porous tubes, spiral tubes, mixed tubes, and interrupted tubes. Through which of these, therefore, does the sap pass in its ascent? The best reply to this enquiry has been furnished by Knight and Mirbel. Knight prepared some annual shoots of the apple and horse-chestnut, by means of circular incisions, so as to leave detached rings of bark with insulated leaves remaining on the stem. He then placed them in colored infusions obtained by macerating the skins of very black grapes in water; and, on examining the transverse section at the end of the experiment, it was found that the infusion had ascended by the wood beyond his incisions, and also into the insulated leaves, but had not colored the pith nor bark, nor the sap between the bark and wood. Krom the above experiment, Knight concludes that the sap ascends through what are called the common tubes of the wood and alburnum, at least till it reaches the leaves. Thus the sap is conveyed to the summit of the alburnum. But Knight’s next ob ject was to trace the vessels by which it is conveyed into the leaf. The apple-tree and horse-chestnut were still his subjects of experiment. In the former the leaves are attached to the plants by three strong fibres, or rather bundles of tubes, one in the middle of the leaf-stalk, and one on each side. In the latter they are attached by means of several such bundies. Now the colored fluid was found in each case to have passed through the centre of the several bundles, and through the centre only, tinging the tubes throughout almost the whole length of the leaf-stalk, In tracing their direction from the leaf-stalk upwards, they were found to extend to the extremity of the leaves; and in tracing their direction from the leaf-stalk downwards, they were found to penetrate the bark and alburnum, the tubes of which they join, descending obliquely till they
Se ee ay
236 SCIENCE OF AGRICULTURE. Parr II.
reach the pith which they surround. From their position Knight calls them central tubes, thus distinguishing them from the common tubes of the wood and alburnum, and from the spiral tubes with which they were every where accompanied as appendages, as well as from a set of other tubes which surrounded them, but were not colored, and which he designates by the appellation of external tubes. The experiment was now transferred to the flower-stalk, and fruit-stalk, which was done by placing branches of the apple, pear, and vine, furnished with flowers not yet expanded, in a decoction of logwood.‘The central vessels were rendered apparent as in the leaf-stalk. When the fruit of the two former was fully formed, the experiment was then made upon the fruit-stalk, in which the central vessels were detected as before; but the coloring matter was found to have penetrated into the fruit also, diverging round the core, approaching again in the eye of the fruit, and terminating at last in the stamens. It was by means of a prolongation of the central vessels, which did not however appear to be accom- panied by the spiral tubes beyond the fruit-stalk. Such then are the parts of the plant through which the sap ascends, and the vessels by which it is conveyed. Entering by the pores of the epidermis, itis received into the longitudinal vessels of the root by which it is conducted to the collar. Thence it is conveyed by the longitudinal vessels of the albur- num, to the base of the leaf-stalk and peduncle; from which it is further transmitted to the extremity of the leaves, flower, and fruit. There remains a question to be asked intimately connected with the sap’s ascent. Do the vessels conducting the sap communicate with one another by inosculation or otherwise, so as that a portion of their contents may be conveyed in a lateral direction, and consequently to any part of the plant; or do they form distinct channels throughout the whele of their extent, having no sort of communication with any other set of tubes, or with one another? Each of the two opinions implied in the question has had its advocates and defenders. But Du Hamel and Knight have shown that a branch will still continue to live though the tubes leading directly to it are cut in the trunk; from which it follows that the sap, though flowing the most copiously in the direct line of ascent, is at the same time also diffused in a trans- verse direction.
1519. Causes of the sap’s ascent. By what power is the sap propelled? Grew states two hypothesis: its volatile nature and magnetic tendency, aided by the agency of ferment- ation. Malpighi was of opinion that the sap ascends by means of the contraction and dilatation of the air contained in the air-vessels._M. De la Hire attempted to account for the phenomenon by combining together the theories of Grew and Malpighi; and Borelli, who endeavoured to render their theory more perfect, by bringing to its aid the influence of the condensation and rarification of the air and juices of the plant.
1520. Agency of heat. Du Hamel directed his efforts to the solution of the difficulty, by endeavoring to account for the phenomena from the agency of heat, and chiefly on the following grounds:— because the sap begins to flow more copiously as the warmth of spring returns; because the sap is sometimes found to flow on the south side of a tree before it flows on the north side, that is, on the side exposed to the influence of the sun’s heat sooner than on the side deprived of it; because plants may be made to vegetate even in the winter, by means of forcing them in a hot-house; and because plants raised in a hotzhouse produce their fruit earlier than such as vegetate in the open air. There can be no doubt of the great utility of heat in forwarding the progress of vegetation; but it will not therefore follow that the motion and ascent of the sap are to be attributed to its agency. On the contrary, it is very well known that if the temperature exceeds a certain degree, it becomes then prejudicial both to the ascent of the sap and also to the growth of the plant. Hales found that the sap flows less rapidly at mid-day than in the morning; and every body knows that vegetation is less luxuriant at midsummer than in the spring. So also, in the case of forcing, it happens but too often that the produce of the hot-house is totally destroyed by the unskilful application of heat; and if heat is actually the cause of the sap’s ascent, how comes it that the degree necessary to produce the effect is so very variable even in the same climate? For there are many plants, such as the arbutus, laurustinus, and the mosses, that will continue not only to vege- tate, but to protrude their blossoms and mature their fruit, even in the midst of winter, when the temper- ature is at the lowest. And in the case of submarine plants the temperature can never be very high; so that although heat does no doubt facilitate the ascent of the sap by its tendency to make the vessels expand, yet it cannot be regarded as the efficient cause, since the sap is proved to be in motion even throughout the whole of the winter. Du Hamel endeavours, however, to strengthen the operation of heat by means of the influence of humidity, as being also powerful in promoting the ascent of the sap, whether as relative to the season of the year or time of the day. The influence of the humidity of the atmosphere cannot be conceived to operate as a propelling cause, though it may easily be conceived to operate as affording a facility to the ascent of the sap in one way or other; which under certain circum- stances is capable of most extraordinary acceleration, but particularly in that state of the atmosphere which forbodes or precedes a storm. In such a state a stalk of wheat was observed by Du Hamel to grow three inches in three days; a stalk of barley six inches, and a shoot of a vine almost two feet; but this is a state that occurs but seldom, and cannot be of much service in the general propulsion of the sap. On this intricate but important subject Linnzeus appears to have embraced the opinion of Du Hamel, or an opinion very nearly allied to it; but does not seem to have strengthened it by any new accession of argument; so that none of the hitherto alleged causes can be regarded as adequate to the production of the effect.
1521. Irritability. Perhaps the only cause that has ever been suggested as appearing to be at all ade- quate to the production of the effect, is that alleged by Saussure. According to Saussure the cause of the sap’s ascent is to be found in a peculiar species of irritability inherent.in the sap-vessels themselves, and dependent upon vegetable life; in consequence of which they are rendered capable of a certain degree of contraction, according as the internal surface is affected by the application of stimuli, as well as of subse- quent dilatation according as the action of the stimulus subsides; thus admitting and propelling the sap by alternate dilatation and contraction. In order to give elucidation to the subject, let the tube be supposed to consist of an indefinite number of hollow cylinders united one to another, and let the sap be supposed to enter the first cylinder by suction, or by capillary attraction, or by any other adequate means; then the first cylinder being excited by the stimulus of the sap, begins gradually to contract, and to propel the con-
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155, Hales reare then covered the m from the earth con small diameter, Je inches in length an shut except at the plant weighed for f the fact of transpir moisture transpire the pot.‘The fina Of the leaves, in th cabbage, irhose me Which were found, plants, which transy Spite less, tis kno Sparingly; hich se ate generally expose With his own experi Of Which was tht, oth SUTTaCe and is affoot vet dininishing Ae 4d is least during the
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at all ade- use of the selves, and » degree of 5 of subse- the sap by e supposed » supposed ; then the el the con
Boox[. PROCESS OF VEGETABLE NUTRITION. 237
tained fluid into the cylinder immediately above it. But the cylinder immediately above it, when acted on in the same manner, is affected in the same manner; and thus the fluid is propelled from cylinder to cylin- der till it reaches the summit of the plant. So also when the first cylinder has discharged its contents into the second, and is no longer acted upon by the stimulus of the sap, it begins again to be dilated to its ori- ginal capacity, and prepared for the intro-susception of a new portion of fluid, Thus a supply is constantly kept up, and the sap continues to flow, The above is by far the simplest as well as most satisfactory of all theories accounting for the ascent of the sap. i
1522. Contraction and dilatation. Knight has presented us with a theory which, whatever may be its real value, merits at least our particular notice, as coming from an author who stands deservedly high in the list of phytological writers. This theory rests upon the principle of the contraction and dilatation, not of the sap-vessels themselves, as in the theory of Saussure, but of what Knight denominates the silver grain, assisted perhaps by heat and humidity expanding or condensing the fluids.(Phil. Trans. 1801.) Keith considers this theory of Knight as beset with many difficulties, and the agency of the alleged cause as totally inadequate to the production of the effeet to be accomplished.
1523. Elaboration of the sap. The moisture of the soil is no sooner absorbed into the plant than it begins to undergo a change. This is proved by the experiment of making a bore or incision in the trunk of a tree during the season of bleeding; the sap that issues from the wound possesses properties very different from the mere moisture of the soil, as is indicated by means of chemical analysis, and sometimes also by means of a peculiar taste or flavor, as in the case of the birch tree. Hence the sap has already undergone a certain degree of elaboration; either in passing through the glands of the cellular tissue, which it reaches through the medium of a lateral communication, or in mingling with the juices contained in the cells, and thus carrying off a portion of them; in the same manner, we may suppose, that water by filtering through a mineral vein becomes im- pregnated with the mineral through which it passes. But this primary and incipient stage of the process of elaboration must always of necessity remain a mystery to the phytologist, as being wholly effected in the interior of the plant, and consequently beyond. the reach of observation. All he can do, therefore, is to trace out its future progress, and to watch its succeeding changes, in which the rationale of the process of elaboration may be more evident.
1524. The process of elaboration is chiefly operated in the leaf: for the sap no sooner reaches the leaf, than part of it is immediately carried off by means of perspiration, perceptible or imperceptible; effecting a change in the proportion of its component parts, and by consequence a change in its properties.
1525. Hales reared a sun-flower in a pot of earth till it grew to the height of three feet and a half; he then covered the mouth of the pot with a plate of lead, which he cemented so as to prevent all evaporation. from the earth contained in it. In this plate he fixed two tubes, the one nine inches in length and of but small diameter, left open to serve as a medium of communication with the external air; the other two inches in length and one in diameter, for the purpose of introducing a supply of water, but kept always shut except at the time of watering. The holes of the bottom of the pot were also shut, and the pot and plant weighed for fifteen successive days in the months of July and August; hence he ascertained not only the fact of transpiration by theleaves, from a comparison of the supply and waste; but also the quantity of moisture transpired in a given time, by subtracting from the total waste the amount of evaporation from the pot. The final result proved that the absorbing power of the root is greater than the transpiring power of the leaves, in the proportion of five to two. Similar experiments were also made upon some species of cabbage, whose mean transpiration was found to be| lb. 3o0z. per day; and on some species of evergreens, which were found, however, to transpire less than other plants.‘The same is the case also with succulent plants, which transpire but little in proportion to their mass, and which as they become more firm tran- spire less. It is known, however, that they absorb a great deal of moisture, though they give it out thus sparingly; which seems intended by nature for the purpose of resisting the great droughts to which they are generally exposed, inhabiting, as they do for the most part, the sandy desert or the sunny rock. Along with his own experiments Hales relates also some others that were made by Miller of Chelsea; the result of which was that, other circumstances being the same, transpiration is in proportion’ to the transpiring surface; and is affected by the temperature of the air, sunshine, or drought, promoting it, and cold and wet diminishing or suppressing it entirely. It is also greatest from six o’clock in the morning till noon, and is least during the night. But when transpiration becomes too abundant, owing to excess of heat or drought, the plant immediately suffers and begins to languish; and hence the leaves droop during the day, though they are again revived during the night. For the same or for a similar reason, transpiration has been found also to increase as the heat of summer advances; being more abundant in July than in June, bee still more in August than in either of the preceding months, from which last period it begins again to
ecrease..
1526. A fluid litile different from common water is exhaled according to the experi- ments of Hales and Guettard; in some cases it had the odor of the plant; but Du Hamel found that it became sooner putrid than water. Such then are the facts that have been ascertained with regard to the imperceptible perspiration of plants, from which it unavoidably follows that the sap undergoes a very considerable modification in its passage through the leaf.
1527. Perceptible perspiration, which is an exudation of sap too gross or too abundant to be dissipated immediately, and which hence accumulates on the surface of the leaf, is the cause of its further modification. It is very generally to be met with in the course of the summer on the leaves of the maple, poplar, and lime-tree; but particularly on the surface exposed to the sun, which it sometimes wholly covers,
1528. The physical as well as chemical qualities of perspired matter are very different in different species of plants; so that it is not always merely an exudation of sap, but of sap ina high state of elaboration, or mingled with the peculiar juices or secretions of the plant. Sometimes it is a clear and watery fluid con- glomerating into large drops, such as are said to have been observed by Miller, exuding from the leaves of the musar arbor, or plantain-tree; and such as are sometimes to be seen in hot and calm weather ex- uding from the leaves of the poplar or willow, and trickling down in such abundance as to resemble a slight shower. This phenomenon was observed by Sir J, E, Smith, under a grove of willows in Italy, and
238 SCIENCE OF AGRICULTURE. Part IT.
said te occur sometimes even in England. Sometimes it is glutinous, as on the leaf of the lime-tree; sometimes it is waxy, as on the leaves of rosemary; sometimes it is saccharine, as on the orange-leaf; or resinous, as on the leaves of the cistus creticus. The cause of this excess of perspiration has not yet been altogether satisfactorily ascertained; though it seems to be merely an effort and institution of nature to throw off aft such redundant juices as may have been absorbed, or secretions as may have been formed beyend what are necessary to the due nourishment or composition of the plant, or beyond what the plant is capable of assimilating at the time. Hence the watery exudation is perhaps nothing more than a re- dundaney of the fiuid tarown off by imperceptible perspiration, and the waxy and resinous exudations nothing more than a redundancy of secreted juices; all which may be still perfectly consistent with a healthy state ef the plant. But there are cases in which the exudation is to be regarded as an indication of disease, particularly in that of the exudation known by the name of honey-dew, a sweet and viscid substance covering the leaves like a varnish, and sometimes occasioning their decay. Such at least seems to be the fact with regard to the honey-dew of the hop, which, according to the observations of Linneus, is the consequence of the attacks of the caterpillar of the ghost-moth injuring the root. And such seems also to be the fact with regard to the honey-dew of the beech-tree, and perhaps also the honey-dew of the oak.‘Tie sap then in the progress of its ascent from the extremity of the root to the extremity of the teaf undergoes a considerable change, first in its mixing with the juices already contained in the plant, and then in its throwing off a portion at the leaf.
1529. The sap is further affected by means of the gases entering into the root along with the moisture of the soil, but certainly, by means of the gases inhaled into the leaf’; the action and elaboration of which shall now be elucidated.
1530. Eaboration of carbonic acid. The utility of carbonic‘acid gas as a vegetable food has been al- ready shown; plants being found not enly to absorb it by the root along with the moisture of the soil, but also to inhale it by the leaves, at least when vegetating in the sun or during the day. But how is the ela- boration of this gas effected? Is it assimilated to the vegetable substance immediately upon entering the plant, or is its assimilation effected by means of intermediate steps? The gas thus inhaled or absorbed is not assimilated immediately, or at least not wholly: for it is known that plants do also evolve carbonic acid gas when vegetating in the shade, or during the night. Priestley ascertained that plants vegetating in confined atmospheres evolve carbonic acid gas in the shade, or during the night, and that the vitiated state of their atmospheres after experiment is owing to that evolution; and Saussure that the elaboration of carbonic acid gas is essential to vegetation in the sun; and, finally, Senebier and Saussure proved that the carbonic acid gas contained in water is abstracted and inhaled by the leaf, and immediately decom- posed; the carbon being assimilated to the substance of the plant, and the oxygen in part evolved, and in part also assimilated. The decomposition of carbonic acid gas takes place only during the light of day, though Saussure has made it also probable that plants decompose a part of the carbonic acid gas which they form with the surrounding oxygen even in the dark. But the effect is operated chiefly by means of the leaves and other green parts of vegetables, that is, chiefly by the parenchyma; the wood, roots, petals, and leaves that have lost their. green color not being found to exhale oxygene gas. It may be observed, however, that the green color is not an absolutely essential character of the parts decomposing carbonic acid; because the leaves of a peculiar variety of the atriplex hortensis, in which all the green parts change to red, do still exhale oxygene gas.:
1531. Elaboration of oxygen. It has been already shown that the leaves of plants abstract oxygen from confined atmospheres, at least when placed in the shade, though they do not inhale all the oxygen that disappears; and it has been further proved, from experiment, that the leaves of plants do also evolve a gas in thesun. From a great variety of experiments relative to the action and influence of oxygen on the plant, and the contrary, the following is the sum of the results. The green parts of plants, but especially the leaves, when exposed in atmospheric air to the successive influence of the light and shade, inhale and evolve alternately a portion of oxygene gas mixed with carbonic acid. But the oxygen is not immediately assimilated to che vegetable substance; it is first converted into carbonic acid by means of combining with the carbon of the plant, which withers if this process is prevented by the application of lime or potass. The leaves of aquatics, succulent plants, and evergreens consume, in equal circumstances, less oxygen than the leaves of other plants. The roots, wood, and petals, and in short all parts not green, with the exception of some colored leaves, do not effect the successive and alternate inhalation and extrication of oxygen; they inhale it indeed, though they do not again give it out, or assimilate it immediately, but con- vey it under the form of carbonic acid to the leaves, where it is decomposed. Oxygen is indeed assimilated to the plant, but not directly, and oniy by means of the decomposition of carbonic acid; when part of it, though in a very small proportion, is retained also and assimilated along with the carbon. Hence the most obvious influence of oxygen, as applied to the leaves, is that of forming carbonic acid gas, and thus pre- senting to the plants elements which it may assimilate; and perhaps the carbon of the extractive juices absorbed even by the root, is not assimilated to the plant till it is converted by means of oxygen into car- bonic acid. But as an atmosphere composed of nitrogen and carbonic acid gas only is not tavorable to vegetation, itis probable that oxygen performs also some other function beyond that of merely presenting to the plant, under the modification of carbonic acid, elements which it may assimilate. It may effect also the disengagement of caloric by its union with the carbon of the vegetable, which is the necessary result of such union. But oxygen is also beneficial to the plant from its action on the soil; for when the ex- tractive juices contained in the soil have become exhausted, the oxygen of the atmosphere, by penetrating into the earth and abstracting from it a portion of its carbon, forms a new extract to replace the first. Hence we may account for a number of facts observed by the earlier phytologists, but not well explained. Du Hamel remarked that the lateral roots of plants are always the more vigorous the nearer they are to the surface; but it now appears that they are the most vigorous at the surface because they have there the easiest access to the oxygen of the atmosphere, or to the extract which it may form. It was observed, also, by the same phytologist, that perpendicular roots do not thrive so well, other circumstances being the same, in a stiff and wet soil as in a friable and dry soil; while plants with slender and divided roots thrive equally well in both: but this is no doubt owing to the obstacles that present themselves to the passage of the oxygen in the former case, on account of the greate# depth and smaller surface of the root. It was further observed, that roots which penetrate into dung or into pipes conducting water, divide into immense numbers of fibres, and form what is called the fox-tail root; but it is because they cannot continue to ve- getate, except by encreasing their points of contact, with the small quantity of oxygen found in such mediums. Lastly, it was observed that plants, whose roots are suddenly overflowed with water remaining afterwards stagnant, suffer sooner than if the accident had happened by means of a continued current. It is because in the former case the oxygen contained in the water is soon exhausted, while in the latter it is not exhausted at all. And hence also we may account for the phenomenon exhibited by plants vegetating in distilled water under a receiver filled with atmospheric air, which having no proper soil to supply the root with nourishment, effect the developement of their parts only at the expense of their own proper substance; the interior of the stem, or a portion of the root, or the lower leaves decaying and giving up their extractive juices to the other parts.— Thus it appears that oxygene gas, or that constituent part of the atmospheric air which has been found to be indispensable to the life of animals, is also indispensable to the life of vegetables. But although the presence and action of oxygen is absolutely necessary to the process of vegetation, plants do not thrive so well in an atmosphere of pure oxygen, as in an atmosphere of pure or common air.‘This was proved by an experiment of Saussure’s, who having introduced some plants of pisum sativum, that were but just issuing from the seed, into a receiver containing pure oxygene gas,
foot I
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om of VeB 1532, Decom}
by wich water h fring into the egy of the pl
it was by no mea pat, atlas of portion ofthe 08 scoordingly pret Genbir pointed ratcularly that stated as to hav infeed also by 1 sich be had intr rathered a numbe aces likely tok the atmosphere, a aad in an attnosp dred them as bef to compare with creased in solid v plants, the result inan atmosphere aided any thing small to be appr yas mixed with water by the ve¢ plants do in any and at the same by the decompo 1533, Desce by means of the lation of the ca itis found chief be distinguishe Spurge, and sor medical virtues blood is to the a of iho escapes from the: If the prope juice ump of gum, tes quent loss of blog the proper juice A bythe skill and n Marks as tending hi OF proper ju ei hg : Principle with 1. The proper: th etl a
Of the}; © limestye the orange tion has not an Naty
ndeah ow heh und SUch seem u® Honey. dewp of the © extremity of th
tained in they ln plant,
1€ root alone with ean tO the lea the
le food has been al
ihaled or absorbe; also evolve cart Plants vege and that the vi at the elaboratio {USSUre proved that immediately decom. in part eyo) d Ing the light of day
MIC acid gas wich chiefly by means of ‘WOO, roots, petals, It may be observe, COMposing carhoni
green parts change
stract oxygen from all the oxygen that s do also evolve a of oxygen on the ants, Lut especially shade, inhale and is not immediately of combining with f Time or potass, inces, less oxygen t green, with the ind extrication of ediately, but cov. ideed assimilated when part of it, Hence the most s, and thus pre. xtractive juices xygen into car. ot favorable to rely presenting may effect als necessary result r when the ex. by penetrating place the first well explained rearer they are hey have there t was observed, ances being the ed roots thrive the passage ot > root. It was into Immense ontinue to ve. found in such ter remaining dcurrent, It the latter 118 ts vegetating to supply the own proper nd giving Up uent part oF spensable to the process e of pure oF ye plants of xygene gas
Boox I. PROCESS OF VEGETABLE NUTRITION.=
found that in the space of six days they had acquired only half the weight of such as were introduced at the same time into a receiver containing common air. From whence it follows that oxygen, though the principal agent in the process of vegetation, is not yet the only agent necessary to the health and growth of the plant, and that the proportion of the constituent parts of the atmospheric air is well adapted for the purposes both of vegetable and animal life.
1532. Decomposition of water. Although the opinion was proved to be groundless, by which water had heen supposed to be convertible into all the different ingredients en- tering into the composition of the vegetable substance by means of the action of the vital energy of the plant; yet when water was ultimately proved to be a chemical compound, it was by no means absurd to suppose that plants may possess the power of decomposing part, at least, of what they absorb by the root, and thus acquire the hydrogen as well asa portion of the oxygen which, by analysis, they are found to contain. This opinion was accordingly pretty generally adopted, but was not yet proved by any direct experiment. Senebier pointed out several phenomena from which he thought it was to be inferred, but particularly that of the germination of some seeds moistened merely with water, and so situated as to have no apparent contact with oxygen. The decomposition of water was inferred also by Ingenhouz, from the amelioration of an atmosphere of common air into which he had introduced some succulent plants vegetating in pure water. Saussure having gathered a number of plants of the same species, as nearly alike as possible in all cireum- stances likely to be affected by the experiment, dried part of them to the temperature of the atmosphere, and ascertained their weight; the rest he made to vegetate in pure water, and in an atmosphere of pure oxygen for a given period of time, at the end of which he dried them as before, and ascertained their weight also, which it was thus only necessary to compare with the weight of the former, in order to know whether the plants had in- creased in solid vegetable substance or not. But after many experiments on a variety of plants, the result always was, that plants when made to vegetate in pure water only, and in an atmosphere of pure oxygen, or of common air deprived of its carbonic acid, scarcely added any thing at all to their weight ina dried state; or if they did, the quantity was too small to be appreciated. But from a subsequent experiment, in which carbonic acid gas was mixed with common air by the same experiment, the decomposition and fixation of water by the vegetating plant is legitimately inferred. It does not appear, however, that plants do in any case decompose water directly; that is, by appropriating its hydrogen and at the same time disengaging its oxygen in the form of gas, which is extricated only by the decomposition of carbonic acid.
1533. Descent of the proper juice. When the sap has been duly elaborated in the leaf by means of the several processes that have just been described, it assumes the appel- lation of the cambiwm, or proper juice of the plant. In this ultimate state of elaboration it is found chiefly in the bark, or rather between the bark and wood, and may very often be distinguished by a peculiar color, being sometimes white, as in the several species of spurge, and sometimes yellow, as in celandine. It is said to be the principal seat of the medical virtues of plants; and was regarded by Malpighi as being to the plant what the blood is to the animal body— the immediate principle of nourishment, and grand support of life; which opinions he endeavours to establish by the following analogies: if the blood escapes from the vessels of the animal body, it forms neither flesh nor bone, but tumors; if the proper juices of the plant are extravasated, they form neither bark nor wood, but a lump of gum, resin, or inspissated juice. The disruption of the blood-vessels and conse-
g’ Ei J 9
quent loss of blood, injures and often proves fatal to the animal. The extravasation of the proper juice injures and often proves fatal to vegetables, unless the evil is prevented by the skill and management of the gardener. Whatever may be the value of these re- marks as tending to establish the analogy in question, it cannot be doubted that the cam- bium or proper juice constitutes at least the grand principle of vegetable organisation; generating and developing in succession the several organs of the plant, or furnishing the vital principle with the immediate materials of assimilation.
1534. The proper juice is conveyed to the several parts of the plant by an appropriate set of vessels. One of the earliest and most satisfactory experiments on this subject, at least as far as regards the return of the proper juice through the leaf and leaf-stalk, is that of Dr. Darwin, which was conducted as follows: a stalk of the euphorbia heliscopia, furnished with its leaves and seed-vessels, was placed in a decoction of madder root, so as that the lower portion of the stem and two of the inferior leaves were immersed in it. After remaining so for several days the color of the decoction was distinctly discerned passing along the midrib of each leaf. On the upper side of the leaf many of the ramifications, going from the midrib towards the circumference, were observed to be tinged with red; but on the under side there was ob- served a system of branching vessels, originated in the extremities of the leaf and carrying not a red but a pale milky fluid, which, after uniting in two sets, one on each side the midrib, descended along with it into the leaf-stalk. These were the vessels returning the elaborated sap. The vessels observable on the upper surface Darwin calls arteries, and those on the under surface he calls veins. To this may be added the more recent discoveries of Knight, who in his experiments, instituted with a view to ascertain the course of the sap, detected in the leaf-stalk, not only the vessels which he calls central tubes, through which the colored infusion ascended, together with their appendages, the spiral tubes; but also another Set of vessels surrounding the central tubes, which he distinguishes by the appellation of external tubes, and which appeared to be conveying in one direction or other a fluid that was not colored, but that proved, upon further investigation, to be the descending proper juice. In tracing them upwards they
were found to extend to the summit of the leaf, and in tracing them downwards they were found to extend to the base of the leaf-stalk, and to penetrate even into the inner bark, According
Sc LSy ey
240 SCIENCE OF AGRICULTURE. Pant IL,
to Knight, then, there(are three sets of vessels in leaves, the central tubes, the spiral tubes, and the external tubes. But by what means is the proper juice conducted from the base of the leaf-stalk to the extremity of the root? This was the chief object of the enquiry of the earlier phytologists who had not yet begun to trace its progress in the leaf and leaf-stalk; but who were acquainted with facts indicating at least the descent of a fluid in the trunk. Du Hamel stript sixty trees of their bark in the course of the spring, laying them bare from the upper extremity of the sap and branches to the root; the experiment yroved indeed fatal to them, as they all died in the course of three or four years. But many of them nad made new productions both of wood and bark from the buds downwards, extending in some cases to the length ofa foot; though very few of them had made any new productions’from the root upwards. Hence it is that the proper juice not only descends from the extremity of the leaf to the extremity of the root, but generates also in its descent new and additional parts. The experiments of Knight on this sub- ject are, if possible, more convincing than even those of Du Hamel. From the trunks ofa number of young crab-trees he detached a ring of bark of half an inch in breadth. The sap rose in them, and the portion of the trunk above the ring augmented as in other subjects that were not so treated, while the portion below the ring scarcely augmented at all. The upper lips of the wounds made considerable ad- vances downwards, while the lower lips made scarcely any advances upwards; but if a bud was protruded under the ring, and the shoot arising from it allowed to remain, then the portion of the trunk below that bud began immediately to augment in size, while the portion between the bud and incision remained nearly as before. When two circular incisions were made in the trunk so as to leave a ring of bark be- tween them with a leaf growing from it, the portion above the leaf died, while the portion below the leaf lived; and when the upper part of a branch was stripped of its leaves the bark withered as far as it was stript. Whence it is evident that the sap which has been elaborated in the leaves and converted into proper juice, descends through the channel of the bark, or rather between the bark and alburnum to the extremity of the root, effecting the developement of new and additional: parts. But not only is the bark thus ascertained to be the channel of the descent of the proper juice, after entering the trunk; the peculiar vessels through which it immediately passes, have been ascertained also. In the language of Knight they are merely a continuation of the external tubes already noticed, which after quitting the base of the foot-stalk he describes as not only penetrating the inner bark, but descending along with it and conducting the proper juice to the very extremity of the root. In the language of Mirbel they are the large or rather simple tubes so abundant in the bark of woody plants, though not altogether confined to it; and so well adapted by the width of their diameter to afford a passage to the proper juice.
1535. Causes of descent. The proper juice then, or sap elaborated in the leaf, de- scends by the returning vessels of the leaf-stalk, and by the longitudinal vessels of the inner bark, the large tubes of Mirbel and external tubes of Knight, down to the ex- tremity of the root.
.
1536. The descent of the proper juice was regarded by the earlier phytologists as resulting from the agency of gravitation, owing‘perhaps more to the readiness with which the conjecture suggests itself than to the satisfaction which it gives. But the insufficiency of this cause was clearly pointed out by Du Hamel, who observed in his experiments with ligatures that the tumor was always formed on the side next to the leaves, even when the branch was bent down, whether by nature or art, so as to point to the earth, in which case the power propelling the proper juice is acting not only in opposition to that of gravitation, but with such force as to overcome it. This is an unanswerable ar- gument; and yet it seems to have been altogether overlooked, or at least undervalued in its import- ance by Knight, who endeavors to account for the effect by ascribing it to the joint operation of gravitation, capillary attraction, the waving motion of the tree, and the structure of the conducting vessels; but the greatest of these causes is gravitation. Certain it is that gravitation has considerable influence in preventing the descent of the sap in young shoots of trees which have grown upright, which, when bent down after being fully grown, form larger buds, and often blossom instead of leaf buds. This practice, with a view to the production of blossom-buds, is frequently adopted by gardeners(Hort. Trans. i. 237.) in training fruit-trees.— These causes are each perhaps of some efficacy; and yet even when taken altogether they are not adequate to the production of the effect. The greatest stress is laid upon gravitation; but its agency is obviously over-rated, as is evident from the case of the pendent shoots of the weeping willow; and if gravitation is so very efficacious in facilitating the descent of the proper juice, how comes its influence to be suspended in the case of the ascending sap? The action of the silver grain will scarcely be sufficient to overcome it; and if it should he said that the sap ascends through the tubes of the alburnum by means of the agency of the vital principle, why may not the same vital prin- ciple conduct also the proper juice through the returning vessels of the bark? In short, if, with Saussure, we admit the existence of a contracting power in the former case sufficient to propel the sap from ring to ring, it will be absolutely necessary to admit it also in the latter. Thus we assign a cause adequate to the production of the effect, and avoid at the same time the transgression of that most fundamental prin- ciple of all sound philosophy which forbids us to multiply causes without necessity.
Sect. IV. Process of Vegetable Developement.
1537. The production of the different parts and organs of plants is effected by the assi- milation of the proper juice. The next object of our enquiry, therefore, will be that of tracing out the order of the developement of the several parts, together with the peculiar mode of operation adopted by the vital principle. But this mode of operation is not exactly the same in herbaceous and annual plants, as in woody and perennial plants. In the former, the process of developement comprises as it were but one act of the vital prin- ciple, the parts being all unfolded in immediate succession and without any perceptible interruption till the plant is complete. In the latter, the process is carried on by gradual and definite stages easily cognisable to the senses, commencing with the approach of spring, and terminating with the approach of winter; during which, the functions of the vital principle seem to be altogether suspended, till it is aroused again into action by the warmth of the succeeding spring.‘The illustration of the latter, however, involves also that of the former; because the growth of the first year exemplifies at the same time the growth of annuals, while the growth of succeeding years exemplifies whatever is peculiar to perennials.
1538. Elementary organs. If the embryo, on its escape from the seed and conversion into a plant, is taken and minutely inspected, it will be found to consist of a root, plume- let, and incipient stem, which have been developed in consecutive order; and if the
k’ I 5
plant is taken and dissected at this period of its growth it will be found to be composed
woh 2
waely of a0€P! jvindiidual; 0 ines of long elie ao dub| ite; but what ha
153) No satisfacton vfients of all the d smmgemett a8 shall b aries,‘The pellicle sentially distinct fro vaiuar function, nud it as being a pulpy surface of| y the agency ¢
il respects g they are both ated when injure are oth subject, in cer prt enclosed,
1540, Composite agus involves the phat, and of the or irs that are ann
1541, Annuals a tiebeginning of Wy iil be found to rots the radicle e bare been generate
2. The root or tri U0 consist already of ad of the first stage {omed 2 1, The pith seem theformation of the fatenchyma, are ul bhytologists have be phytological opinion been an opinion by w and by which it was des Arb, liv, j, chap, early opinion, exhib) Tegarded as being ay himself adopt it, bu élaborated for the Tot Mt produces the flare OF the pulp or cellar Vegetation. But Lin SOUrCE Of Tesetatle ate to animals, the 0 they have all the com wae Stggested a ney sates of the mings, al thi oii is funde, “Upply the leaves when hth pith has no
t The go. ith He genera etary SeNCration of
NS plants,}
a UN Rand i tget
‘ng Ni}
Vers j
Pann TL
e trunk below that INCision TeMained a TING of bark be. tion below the lege ed as fat as it pay nd converted into and albumum to
But Not only js ‘ering the trunk
In the languape tig Ing along with it ’ Mirbel‘he are together confined r juice,
in the leaf de. vessels of the Own to the ex.
esulting from the re suggests itself arly pointed out 8 always formed nature or art, 9 ting not only in unanswerable ar. ed in its import. nt operation of “the conducting has considerable upright, which, leaf buds, This rs(Hort, Trans, yet even when ress is laid upon ndent shoots of of the proper on of the silver is through the me vital prin. with Saussure, ) from ring to > adequate to amental prin-
by the assi- be that of the peculiar ation is not plants. hh ital prin- perceptible by gradual pproach of jons of the ion by the volves also » time the ; peculiar
ynversion , plume- oq if the omnposed
Book I. PROCESS OF VEGETABLE DEVELOPEMENT. 241
merely of an epidermis enveloping a soft and pulpy substance, that forms the mass of the individual; or it may be furnished also with a central and longitudinal fibre; or with bundles of longitudinal fibres giving tenacity to the whole. These parts have been de- veloped no doubt by means of the agency of the vital principle operating on the proper Juice; but what have been the several steps of operation?
1539. No satisfactory explication of this phenomenon has yet been offered. It is likely, however, that the rudiments of all the different parts of the plant do already exist in the embryo in such specific order of arrangement as shall best fit them for future developement, by the intro-susception of new and additional particles. The pellicle constituting the vegetable epidermis has generally been regarded as a membrane essentially distinct from the parts which it covers, and as generated with a view to the discharge of some particular function. Some phytologists, however, have viewed it in a light altogether different, and have regarded it as being merely the effect of accident, and nothing more than a scurf formed on the exterior and.pulpy surface of the parenchyma indurated by the action of the air. It is more probably, however, formed by the agency of the vital principle, even while the plant is yet in embryo, for the very purpose of protecting it from injury when it shall have been exposed to the air in the process of vegetation. There are several respects in which an analogy between the animal and vegetable epidermis is sufficiently striking: they are both capable of great expansion in the growth of the subject; they are both easily re- generated when injured(excepting in the case of induration), and seemingly in the same manner; they are both subject, in certain cases, to a constant decay and repair; and they both protect from injury the parts enclosed.
1540. Composite organs. The elucidation of the developement of the composite organs involves the discussion of the two following topics:—the formation of the annual plant, and of the original shoot of the perennial; and the formation of the subsequent layers that are annually added to the perennial.
1541. Annuals and annual shoots. If a perennial of a year’s growth is taken up in the beginning of winter when the leaves, which are only temporary organs, have fallen, it will be found to consist of a root and trunk, surmounted by one or more buds. The root is the radicle expanded into the form peculiar to the species, but the trunk and buds have been generated in the process of vegetation.
1542. The root or trunk, if taken and cut into two by means of a_ transverse section, will be found to consist already of bark, wood, and pith. Here then is the termination of the growth of the annual, and of the first stage of the growth of the perennial: how have their several parts or organs been formed?
1543. The pith seems only a modification of the original pulp, and the same hypothesis that accounts for the formation of the one will account also for the formation of the other; but the pith and pulp, or parenchyma, are ultimately converted into organs essentially distinct from one another; though phytologists have been much puzzled to assign to each its respective functions. In the ages in which phytological opinions were formed without enquiry, one of the vulgar errors of the time seems to have been an opinion by which the function of the pith was supposed to be that of generating the stone of fruit, and by which it was thought that a tree deprived of its pith would produce fruit without a stone.(Phys. des Arb, liv. i. chap. 3.) But this opinion is by much too absurd to merit a serious refutation. Another early opinion, exhibiting however indications of legitimate enquiry, is that by which the pith was regarded as being analogous to the heart and brain of animals, as related by Malpighi; who did not himself adopt it, but believed the pith to be like the cellular tissue, the viscera in which the sap is elaborated for the nourishment of the plant, and for the protrusion of future buds. Magnol thought that it produces the flower and fruit, but not the wood. Du Hamel regarded it as being merely an extension of the pulp or cellular tissue, without being destined to perform any important function in’ the process of vegetation. But Linneus was of opinion that it produces even the wood; regarding it not only as the source of vegetable nourishment, but as being also to the vegetable what the brain and spinal marrow are to animals, the source and seat of life. In these opinions there may be something of truth, but they have all the common fault of ascribing to the pith either too little or too much, M. Lindsay of Jamaica suggested a new opinion on the subject, regarding it as being the seat of the irritability of the leaves of the mimosa, and Sir J. E. Smith says he can see nothing to invalidate the arguments on which this opinion is founded. Plenck and Knight regard it as destined by nature to be a reservoir of moisture to supply the leaves when exhausted by excess of perspiration. Hence it appears that the peculiar function of the pith has not yet been altogether satisfactorily ascertained: and the difficulty of ascertaining it has been thought to be increased from the circumstance of its seeming to be only of a temporary use in the process of vegetation, by its disappearing altogether in the aged trunk. But although it is thus only temporary as relative to the body of the trunk, yet it is by no means temporary as relative to the process of vegetation; the central part of the aged trunk being now no longer in a vegetating state, and the pith being always present in one shape or other in the annual plant, or in the new additions that are annually made to perennials. The pith then is essential to vegetation in all its stages: and from the analogy of its structure to that of the pulp or parenchyma, which is known to be an organ of elabor- aoe as in the leaf, the function of the pith is most probably that of giving some peculiar elaboration to the sap.
1544. The generation of the layer of wood in woody plants, or of the parts analogous to wood in the case of herbaceous plants, has been hitherto but little attended to. If we suppose the rudiments of all the different parts to exist already in the embryo, then we have only to account for their developement by means of the intro-susception and assimilation of sap and proper juice; but if we suppose them to be generated in the course of vegetation, then the difficulty of the case is augmented: and at the best we can only state the result of operations that have been so long continued as to present an effect cognizable to the sense of sight, though the detail of the process is often so very minute as to escape even the nicest observation. All, then, that can be said on the subject, is merely that the tubes, however formed, do, by virtue of the agency of the vital principle operating on the proper juice, always make their appearance at last in a uniform and determinate manner, according to the tribe or species to which the plant belongs, uniting and coalescing so as to form either a circular layer investing the pith, as in woody plants; or a number of divergent layers intersecting the pith, as in some herbaceous plants; or bundles of longitudinal and woody fibre interspersed throughout the pith, as in others. In the same manner we may account for the formation of the layer of bark.
1545. Perennials and their annual layers. If a perennial is taken at the end of the second year and dissected as in the example of the first year, it will be found to have increased in height by the addition of a perpendicular shoot consisting of bark, wood, and pith, as in the shoot of the former year; and in diameter by the addition of a new
R
i } lf | i)
’
249 SCIENCE OF AGRICULTURE. Part II.
layer of wood and of bark, generated between the wood and bark of the former year, and covering the original cone of wood, like the paper that covers a sugar-loaf: this is the fact of the mode of augmentation about which phytologists have not differed, though they have differed widely with regard to the origin of the additional layer by which the trunk is increased in diameter. Malpighi was of opinion that the new layer of wood is formed from the liber of the former year.
1545. The new layer of wood Linneus considered as formed from the pith, which is absurd, because the opinion goes to the imversion of the very order in which the layer is formed, the new layer being always exterior to the old one. But according to the most general opinion, the layer was thought to be formed from a substance oozing out of the wood or bark— first, a limpid fluid, then a viscid pulp, and then a thin layer attaching itself to the former; the substance thus exuding from the wood or bark was generally re- garded as being merely an extravasated mucilage, which was somehow or other converted into wood and bark: but Du Hamel regarded it as being already an organised substance, consisting of both cellular and tubular tissue, which he designated by the appellation of the cambiwm, or proper juice.
1547. Knight has thrown the highest degree of elucidation on this, one of the most obscure and intri- cate processes of the vegetable economy, in having shown that the sap is elaborated, so as to render it fit for the formation of new parts in the leaf only. Ifa leaf or branch of the vine is grafted even on the fruit-stalk or tendril, the graft will still succeed; but if the upper part of a branch is stripped of its leaves, the bark will wither as far as it is stripped; and if a portion of bark furnished with a leaf is insulated by means of detaching a ring of bark above and below it, the wood of the insulated portion that is above the leaf is not augmented: this shows evidently that the leaf gives the elaboration necessary to the formation of new parts, and that without the agency of the leaf no new part is generated:— Such then is the mode of the augmentation of the plant in the second year of its growth. It extends in width by a new layer of wood and of bark insinuated between the wood and bark of the former year; and in height by the addition of a perpendicular shoot, or of branches, generated as in the shoot of the first year. But if the plant is taken and dissected at the end of the third year, it will be found to have augmented in the same manner; and so also at the end of the succeeding year as long as it shall continue to live; so that the outermost layer of bark, and innermost layer of wood, must have been originally tangent in the first year of the plant’s growth; the second layer of bark, and second layer of wood, in the second year; and so on in the order of succession till you come to the layer of the present year, which will in like man- ner divide into two portions, the outer forming one or more layers of bark, and the inner forming one or more layers of wood. And hence the origin of the concentric layers of wood and of bark of the trunk.
But how are we to account for the formation of the divergent layers, which Du Hamel erroneously sup- posed to proceed from the pith? The true solution of the difficulty has been furnished by Knight, who, in tracing the result of the operation of budding, observed that the wood formed under the bark of the in- serted bud unites indeed confusedly with the stock, though still possessing the character and properties of the wood from which it was taken, and exhibiting divergent layers of new formation which originate evi- dently in the bark, and terminate at the line of union between the graft and stock.
1548. But how is the formation of the wood that now occupies the place of the pith to be accounted for? It appears that the tubes of which the medullary is composed do, in the process of vegetation, deposit a cambium, which forms an interior layer that is afterwards converted into wood for the purpose of filling up the medullary canal.
1549. Conversion of the alburnum into perfect wood. In consequence of the increase of the trunk by
means of the regular and gradual addition of an annual layer, the layers whether of wood or of bark are necessarily of different degrees of solidity in proportion to their age; the inner layer of bark, and the outer layer of wood, being the softest; and the other layers increasing in their degree of solidity till you reach the centre on the one hand, and the circumference on the other, where they are respectively the hardest, forming perfect wood or highly indurated bark, which sloughs or splits into chinks, and falls off in thick crusts, as in the plane-tree, fir, and birch. What length of time, then, is requisite to convert the alburnum into perfect wood, or the liber into indurated bark; and by what means are they so converted? There is no fixed and definite period of time that can be positively assigned as necessary to the complete induration of the wood or bark, though it seems to require a period of a good many years before any particular layer is converted from the state of alburnum to that of perfect wood; and perhaps no layer has received its final degree of induration till such time as the tree has arrived at its full growth.‘The indura- tion of the alburnum, and its consequent durability, are attributed by many to the loss of sap which the layer sustains after the period of its complete developement; when the supply from the root diminishes, and the waste by evaporation or otherwise is still kept up, inducing a contraction or condensation of its elementary principles that augments the solidity of the layer, in the first degree, and begins the process that future years finish. But Knight believes the induration of the alburnum as distinguishable in the winter to be owing rather to some substance deposited in it in the course of the preceding summer, which he regards as being the proper juice in a concrete or inspissated state, but which is carried off again by the sap as it ascends in the spring.
1550. Circulation of vegetable juices. After the discovery of the circulation of the blood of animals, phytologists, who were fond of tracing analogies between the animal and vegetable kingdoms, began to think that there perhaps existed in plants also a circu- lation of fluids. The sap was supposed to be elaborated in the root. The vessels in which it was propelled to the summit of the plant were denominated arteries; and the vessels in which it is again returned to the root were denominated veins. Du Hamel, while he admits the ascent of the sap, and descent of the proper juice, each in peculiar and appropriate vessels, does not however admit the doctrine of a circulation; which seems, about the middle of the last century, to have fallen into disrepute. For Hales, who contended for an alternate ascent and descent of fluids in the day and night, and in the same vessels, or for a sort of vibratory motion as he also describes it, gave no countenance whatever to the doctrine of a circulation of juices. But the doctrine, as it appears, has been again revived, and has met with the support of some of the most distinguished of
Hedwig is said to have declared himself'to be of opinion, that plants have acirculation of fluids similar to that of animals. Corti is said to have discovered a species of circulation in the stem of the chara, but confined, it is believed, within the limits of the internodia.| Willdenow has also introduced the subject, and de- fended the doctrine(Principles of Botany, p. 85.); but only by saying he believes a clr- culation to exist, and that it is impossible for the leafiess tree to resist the cold if there be Knight has given his reasons somewhat in detail; and
modern phytologists.
f
not a circulation of
fluids
jor Py
dh lis dott ues and agen ag of the accou! per conditions jel to the radi jen thus conduc sorbed from the oles ofthe alburn sending sap, ret wlth it aga dese reralbumums bu where such alburaul Iial, Decompas prciplein the gent reains to be ade fs, or ongals imm (lopement,‘Thi se, branch bud, k
rool, From lest of woody plant the addition o he shoot effect tent or only by ad e elongation of the reas of silver transve
tblained the same resul tthe mode of the el
pement, it may 4 dul, in which it de: fie young oak-trees alnost four feet, whil Otsacle it then takes Out of lateral shoots,
9, for it isa common removing them, bya fomer, When a too branches, and are aly horizontal Toots are t the increased luxuria latter case, the increas tobe attributed to the the trunk, particularly circle, But the dire little uniformity even i throughout, pethaps th a8 of their branches. bt Interrupted by stones i) Ca8eS 5 sometimes exten
1S to elongate, and form other, the rot gene The tiie int a ty eat a iver, but es bine aedite a streno “Et dll to got atasoil Wall and rocks wh bse ed tothe plant Ita the Hourishment wh sted at some. ithe root yh
: OUS root RIT, certas Detten.”” rll ne
iting bythecy. ADE ste addition of
pera init TeQuires sl 8 sof wa St Dien eh
lle
Pan I,
former year on; ee FH i i
“ALY this i the t differed, thoush ayer by which the V layer of Wood:
; absurd, because the layer being aly thou it to bef Pulp, and th
Chi Y Tes INtO Wood and }}}} a § o% both Cellular and
St obscure ang s
I 1 even on Stripped of its] Na leaf jg j
i Width by ay rT; and in
d, in the seg hich will in j Oner fon of bark of the trunk, famel erroneously sup shed by Ki ler the bark acter and properties o n which originate eri.
vegetation, dey the purpose of filing
‘ease of the trunk by
rs be y perhaps no layer has rowth, The indura. of sap whic he root climinishes, condensation of is ins the proces muishable in the
dl off again by the
rculation of the seen the animal ints also a circu The vessels in rteries; and the s, Du Hamel, each in peculiat culation; which For Hales, who ight, and in the no countenance it appears, bas ‘stinguished of ‘on, that plants ve discovered# elieved, within ject, and de. “pelieves 2 Cll old if there b n detail; 20°
Boox I. PROCESS OF VEGETABLE DEVELOPEMENT. 243
though his doctrine of a circulation should be false, yet the account which he gives of the progress and agency of the sap and proper juice, short of circulation, may be true. The sum of the account is as follows:— When the seed is deposited in the ground under proper conditions, moisture is absorbed and modified by the cotyledons, and conducted directly to the radicle, which is by consequence first developed. But the fluid which has been thus conducted to the radicle, mingling no doubt with the fluid which is now also absorbed from the soil, ascends afterwards to the plumelet through the medium of the tubes of the alburnum. The plumelet now expands and gives the due preparation to the ascending sap, returning it also in its elaborated state to the tubes of the bark, through which it again descends to the extremity of the root, forming in its progress new bark and new alburnum; but mixing also, as he thinks, with the alburnum of the former year, where such alburnum exists, and so completing the circulation.
1551. Decomposite organs. To the above brief sketch of the agency of the vital principle in the generation or growth of the elementary and composite organs, there now
remains to be added that of the progress and mode of the growth of the decomposite or- gans, or organs immediately constituting the plant, as finishing the process of the vegetable developement. This will include the phenomena of the ultimate developement of the root, stem, branch, bud, leaf, flower, and fruit.
1552. The root. From the foregoing observations and experiments, it appears that the roots of plants, or at least of woody plants, are augmented in their width by the addition of an annual layer, and in their length by the addition of an annual shoot, bursting from the terminating fibre. But how is the develope- ment of the shoot effected? Is it by the intro-susception of additional particles throughout the whole of its extent; or only by additions deposited at the extremity? In order to ascertain the fact, with regard to the elongation of the root, Du Hamel instituted the following experiment:— Having passed several threads of silver transversely through the root of a plant, and noted the distances, he then immersed the root in water. The upper threads retained always their relative and original situation, and the lowest thread which was placed within a few lines of the end was the only one that was carried down. Hence he concluded that the root is elongated merely by the extremity. Knight, who from a similar experiment obtained the same result, deduced from it also the same conclusion. We may regard it then as certain, that the mode of the elongation of the root is such as is here represented, though in the progress of its developement, it may affect a variety of directions. The original direction of the root is generaly perpen- dicular, in which it descends to a considerable depth if not interrupted by some obstacle. In taking up some young oak-trees that had been planted in a poor soil, Du Hamel found that the root had descended almost four feet, while the height of the trunk was not more than six inches. If the root meets with an obstacle it then takes a horizontal direction, not by the bending of the original shoot, but by the sending out of lateral shoots. The same effect also follows if the extremity of the root is cut off, but not always so, for it isa common thing in nursery-gardens, to cut off the tap-roots of drills of seedling oaks without removing them, by a sharp spade, and these generally push out new tap-roots, though not so strong as the former. When a root ceases of its own accord to elongate, it sends out also lateral fibres which become branches, and are always the more vigorous the nearer they are to the trunk, but the lateral branches of horizontal roots are the less vigorous the nearer they are to the end next the trunk. In the former case, the increased luxuriance is perhaps owing to the easy access of oxygen in the upper divisions; but in the latter case, the increased luxuriance of the more distant divisions is not so easily accounted for, if it is not to be attributed to the more ample supply of nutriment which the fibres meet with as they recede from the trunk, particularly if you suppose a number of them lying horizontally and diverging like the radii of acircle. But the direction of roots is so liable to be affected by accidental causes, that there is often but little‘uniformity even in roots of the same species. If plants were to be sown in a soil of the same density throughout, perhaps there might be at least as much uniformity in the figure and direction of their roots, as of their branches; but this will seldom happen. For if the root is injured by the attacks of insects, or interrupted by stones, or earth of too dense a quality, it then sends out lateral branches, as in the above cases; sometimes extending also in length by following the direction of the obstacle, and sometimes ceas- ing to elongate, and forming a knot at the extremity. But where the soil has been loosened by digging or otherwise, the root generally extends itself to an unusual length, and where it is both loosened and en- riched, it divides into a multiplicity of fibres. This is also the case with the roots of plants vegetating in pots, near a river, but especially in water. Where roots have some considerable obstacle to overcome they will often acquire a strength proportioned to the difficulty: sometimes they will penetrate through the hardest soil to get at a soil more nutritive, and sometimes they will insinuate their fibres into the crevices even of walls and rocks which they will burst or overturn. This of course requires much time, and does much injury to the plant. Roots consequently thrive best in a soil that is neither too loose nor too dense; but as the nourishment which the root absorbs is chiefly taken up by the extremity, so the soil is often more exhausted at some distance from the trunk than immediately around it. Du Hamel regards the small fibres of the root which absorb the moisture of the soil as being analogous to the lacteals of the ani- mal system, which absorb the food digested by the stomach. But the root is rather to be regarded as the mouth of the plant, selecting what is useful to nourishment ana rejecting what is yet in a crude and indi- gestible state; the larger portions of it serving also to fix the plant in the soil and to convey to the trunk the nourishment absorbed by the smaller fibres, which ascending by the tubes of the alburnum, is thus conveyed to the leaves, the digestive organs of plants. Du Hamel thinks that the roots of plants are fur- nished with pre-organised germs by which they are enabled to send out lateral branches when cut, though the existence of such germs is not proved; and aftirms that the extremities of the fibres of the root die annually like the leaves of the trunk and branches, and are again annually renewed; which last peculiarity Professor Wildenow affirms also to be the fact, but without adducing any evidence by which it appears to be satisfactorily substantiated. On the contrary, Knight, who has also made some observations on this subject, says, it does not appear that the terminating fibres of the roots of woody plants die annually, though those of bulbous roots are found to do so, But the fibres of creeping plants, as the common crow. foot and strawberry, certainly die annually, as do those of the vine.
1553. The stem. The stem, like the root, or at least the stem of woody plants, is also augmented in width by the addition of an annual layer, and in length by the addition of an annual shoot bursting from the terminating bud. Is the developement of the shoot issuing from the stem effected in the same man- ner also? The developement of the shoot from the stem is not effected in the same manner as that of the root— by additions to the extremity only, but by the intro-susception of additional particles throughout its whole extent, at least in its soft and succulent state: the longitudinal extension diminishing in proportion as the shoot requires solidity, and ceasing entirely when the wood is perfectly formed; though often con- tinuing at the summit after it had ceased at the base. The extension of the shoot is inversely at its indn- ration, rapid while it remains herbaceous, but slow in proportion as it is converted into wood. Hence moisture and shade are the most favorable to its elongation, because they prevent or retard its induration;
R 2
Sa nti Of
=
244 SCIENCE OF AGRICULTURE. Parr II.
and hence the small cone of wood which is formed during the first year of the plant’s growth increases no more after the approach of winter, neither in height nor thickness. Such is the mode of the growth and developement of the trunk of perennial and woody plants, to which there exists a striking exception in the growth of the trunk of palms. Their internal structure has been already taken notice of as presenting no concentric or divergent layers, and no medullary canal, but merely an assemblage of large and woody fibres, interspersed without order in a pulp or parenchyma, softer at the centre and gradually becoming harder as it approaches the circumference.— When the seed of the palm-tree germinates, it protrudes a circular row of leaves, or of fronds, which crowns the radicle, and is succeeded in the following year by a similar row issuing from the centre or bosom of the former leaves, which ultimately die down to the base This process is continued for four or five years successively without exhibiting as yet any appearance of a stem, the remaining bases of the leaves or frond forming by their union merely a sort of knob or bulb. At last, however, they constitute by their union an incipient stem, as thick the first year as it ever is after; which in the following year is augmented in height as before, and so on in succession as long as the plant lives, the leaves always issuing from the summit and crowning the stem, which is a regular column, but decaying at the end of the year, and leaving circular marks at the points of insertion, which furrow the surface of the plant, and indicate the years of its growth.
1554. The branches, in their mode of growth and developement, exhibit nearly the same appearances as the trunk from which they issue.‘They originate in a bud, and form also a cone that consists of pith, wood, and bark; or rather they form a double cone. For the insertion of the branch into the trunk resembles also a cone whose base is at the circumference, and whose apex is at the centre, at least if it is formed in the first year of the plant’s growth, or on the shoot of the present year; but falling short of the centre in proportion to the lateness of its formation, and number of intervening layers. Branches in their developement assume almost all varieties of position from the reflected to the horizontal and upright; but the lower branches of trees are said to be generally parallel to the surface of the soil on which they grow, even though that surface should be the sloping side of a hill— owing, as it has been thought, to the evo- lution of a greater number of buds on the side that forms the obtuse angle with the soil, in consequence of its being exposed to the action of a greater mass of air.
1555. The bud, which in the beginning of spring is so very conspicuous on the trees of this country as to be obvious to the most careless observer, is by no means common to all plants, nor to plants of all climates; shrubs in general, and annuals universally, are destitute of buds as well as all plants what- ever growing within the tropics, the leaf being in them immediately protruded from the bark. It is only in the woody plants of cold climates, therefore, that we are to look for buds; and in them no new part is added, whether proper to the leaf or flower, without the intervention of abud. For when the young shoot is produced, it is at the same time furnished with new buds, which are again extended into new shoots in the following spring; and thus the bud is to be regarded as forming, not only the cradle but also the winter quarters of the shoot, for which its coat of tiled and glutinous scales seems admirably well adapted. It is found chiefly in the extremity, or on the surface of the young shoot or branch, and but rarely on the stem, except it be at the collar where it produces suckers. It is also generated for the most part in the axil of the leaves, as may be seen by inspecting the annual shoot of almost any tree at random, though not uni- versally so; for to this ruie there exists a curious and singular exception in the bud of the platanus, which is generated in the very centre of the base of the foot-stalk, and is not discoverable till after the fall of the leaf. But how are the buds formed which are thus developed? Malpighithought they were formed from the pith or cellular tissue, which the latter regarded as viscera destined for the elaboration of the sap and protrusion of future buds. Du Hamel thinks the exterior scales of the bud originate in the interior part of the bark, and Knight relates an experiment from which he thinks it follows that the buds are formed from the descending proper juice. But whatever may be the actual origin of the bud, it is evident that its developement does not take place except through the medium of the proper juice, which has been elaborated in the leaves of preceding buds, and originally in those of the plumelet; as the young bud does not make its appearance till the leaves of the preceding buds have expanded, and will not ultimately succeed if deprived of them too soon.
1556. Bulbs are so very similar to buds both in their origin and developement as to require no specific igation.::
557. The leaf. When the leaves burst from the expanding bud, and even long before that period, as may be seen by the dissection of the bud in the winter, they are complete in all their parts. Hence it is obvious that the leaf, like the young shoot, effects its final developement by means of the intro-susception of new particles throughout the whole of its dimensions: and yet this law of developement is not common to all leaves whatever, for the leaves of liliaceous plants extend chiefly at the point of their junction with thebulb. The effect perhaps of their peculiarity of structure, in being formed of parallel tubes which ex- tend throughout their whole length, without those transverse and branching fibres that constitute what are called the nerves of the leaves of woody plants
1558. The flower and fruit. When the flower bursts from the expanding bud, and even long before that period, it is already complete in all its parts, as may be seen also by the dissection of the bud in winter. Linneus represents the pistil as originating in the pith, the stamens in the wood, and the corolla and calyx in the inner and outer bark respectively: but this account of their origin, though ex- tremely plausible at first sight, will not bear the test of minute examination, being contradicted by the ana- tomy of the parts themselves; particularly in the case of compound flowers. Knight in investigating the organisation of the apple and pear, endeavored to ascertain the origin of the several parts by tracing the organs of the fruit-stalk to their termination. Jn the fruit-stalk he thought he could discover the pith, the central tubes, spiral tubes, and tubes of the bark, together with its epidermis: and in tracing them to their termination, he thought the pith seemed to end in the pistils; the central vessels in the stamens, after diverging round the core and approaching again in the eye of the fruit; and the bark and epidermis in the two external skins. Hence he infers that the flower is a prolongation of the pith, wood, and bark. Dut the ses plant, at least in the case of annuals, begins to exhibit indications of decay. But while the flower withers If were Te Se to phi and falls, the ovary is advancing to perfection, swelling and augmenting in size, and receiving now all the le differs bleed ang nutriment by which the decayed parts were formerly supported. Its color begins to assume a deeper and ‘thee: E1C8 fon tha richer tinge; its figure is also often altered, and new parts are even occasionally added— wings, crests, a: a Was furnish prickles, hooks, bloom, down. The common receptacle of the fruit undergoes also similar changes, becom- me Ting, the effect of ing sometimes large and succulent, as in the fig and strawberry; and sometimes juiceless and indurated,
I stem, leaves 4 as in compound flowers.
: 1605. Internal changes. If the ovary is cut open as soon as it is first discoverable in the flower, it pre- so( sents to the eye merely a pulpy and homogeneous mass. But if it is allowed to remain till immediately a Was tinst mado a before the period of its impregnation, it will now be found to be divisible into several distinct parts, exhi- ms Knot tf itks hs biting an apparatus of cells, valves, and membranes, constituting the pericarp, and sometimes the external EXISLENCE Of Which a. coats of the seed, In this case the umbilical cord is also to be distinguished; but the embryo is not yet ot yet quit he visible. These changes, therefore, are to be attributed merely to the operation of the ordinary laws of hen, by itpreonatn vegetable developement, and are not at all dependent upon impregnation. But impregnation has no ) re 4 sooner taken place than its influence begins to be visible; the umbilical cord, which was formerly short
SeCds Were
Obtain j=3 i: x< A sate ‘a and distended, is now generally converted into a long and slender thread. Sometimes the position of the
Dt issue of ty 5 VE CWO Males: x A 5 S Q 3 F ore id further experi“) seed is altered. Before impregnation the seeds of caryophyllus aromaticus and netrosideros guminifera, ind not ut are horizontal; after impregnation they become vertical. Before impregnation the magnolia seeds are
4Darently ev
emaetly en erect; after impregnation they become inverted and pendulous. The figure of the seed is often also altered in passing from its young to its mature state; changing from smooth to angular, from tapering to oval, from oval to round, and from round to kidney-shaped. But allseeds are not brought to maturity, of which the rudiments may exist in the ovary. Lagecia and hasselquistia, produce uniformly the rudi- 8 to the wil hs ments of two seeds, of which they mature but one. But the principal changes resulting from impregnation ations Knish are operated in the seed itself, which, though previously a homogeneous and gelatinous mass, is now con- 88, For tac verted into an organised body, or embryo. Such are the phenomena, according to the description of But the suooes o ki Gertner, accompanying or following the impregnation of all flowers producing seeds; exceptions occur rincipal objec u where the fecundation 1s spurious and incomplete; where the ovary swells, but exhibits no traces of perfect e obtained in 1 a seed within, as often happens in the vine and tamus; or when barren and fertile seeds are intermingled ng the great st| an together in the same ovary. This proceeds from some defect either in the quantity or quality of the pollen; 5 gee but rather in the quality, as it is not always plants having the most pollen that produce the most seeds. The two stamens of the orchid fecundate 8000 seeds, and the five stamens of tobacco fecundate 900; while night thinks ihe the 50 stamens of barringtonia, the 230 of thea, and the 80 of the caryophilli, fecundate only two or three nd that it does i a DIES
1d Mat 1 does in fact
DY xy)
L y these experin, ik; ascertained by j DutiVe and dyyar
Secr. IX. The Propagation of the Species.
lastic spring of_ 5 ¢ 2 A as- E
‘aa pay og 1606. As the life of the vegetable, like that of the animal, is limited to a definite period, S Alstelice a 3 ae 0 3 A
and as a continued supply of vegetables is always wanted for the support of animals,
what we call art, or nature operating by means of the animal man, has taken care to
Could never succeed::= S 7 2 C= mesed take i 4 institute such means as shall secure the multiplying and perpetuating of the species in the case exists in the all possible cases.
L to give a satisfi
1607. Equivocal generation. It was long a vulgar error, countenanced even by the philosophy of the times, that vegetables do often spring up from the accidental mixture of putrid water and earth, or other putrid substances, in the manner of what was called the equivocal generation of animals; or at the very least, that the earth contains the principle of vegetable life in itself, which, in order to develope, it is only necessary to expose to the action of the air. The former alternative of the error has been long ago re- futed; the latter has lost its hold, having been also refuted by Malpighi, who proved that the earth pro- duces no plant without the intervention of a seed, or of some other species of vegetable germ deposited in it by nature or by art.
unscribed, it als, Salisbur ed both by b seem to confirm this ictly natural may be of Messrs, Colville,
ange sometimes Ul-
Sool ants 1608. Propagation by seeds. When the seed has reached maturity in the due and ii, c.4; Plinié His. regular course of the developement of its several parts, it detaches itself sooner or later sg ta from the parent plant, either singly or along with its pericarp, and drops into the soil, sey al ah where it again germinates and takes root, and springs up into a new individual. Such s, for example, a is the grand means instituted by nature for the replenishing and perpetuating of the Loita au vegetable kingdom.
aofone kind with: 1609. Dispersion of seed. If seeds were to fall into the soil merely by dropping down from the plant,
then the great mass of them, instead of germinating and springing up into distinct plants, would grow up only to putrefy and decay; to prevent which consequence nature has adopted a variety of the most efficacious contri- vances, all tending to the dispersion of the seed.‘The first means to be mentioned, is that of the elasticity of the peri- carp of many fruits, by which it opens when ripe, with a sort of sudden spring, ejecting the seed with violence, and throw- ing itsome considerable distance from the plant. This may be exemplified in a variety of cases; the seeds of oats when ripe are projected from the calyx with such violence, that in a fine and dry day you may even hear them thrown out with a slight and sudden snap in passing through a field that is ripe. The pericarp of the Dorsiferous Ferns( fig. 239 a.) is furnished with a sort of peculiar elastic ring(0), intended, as it would appear, for the very purpose of projecting the seeds. The capsules of the cucumber, geranium geum, and fraxinella, discharge their seeds also when ripe with an elastic jerk. But the pericarp of impatiens, which consists of one cell with five valves, exhibits perhaps one of the best examples of this Sa eit mode of dispersion. If it is accidentally touched when ripe ie Howers 0 it will immediately burst open, while the yalves, coiling
rom the same tree ) generated, being if they are sown, vical Lransactions don the fruit of » within his own ibility to change, rowing melons, or a future ct0p. diferent-colored m to contradict appears to affect mmunicate that late variety. 4! rise the produce
themselves up ina spiral form, and springing from the stem,
- discharge the contained seeds, and scatter them all around.
attained to its The bursting of the pericarp of some species of pines is also
ume, But as worthy of notice. The pericarp, which is a cone, remains
Its period of on the tree till the summer succeeding that on which it was s, and then of produced, the scales being still closed. But when the hot ip
ner, except Il weather has commenced and continued for some time, so as
pe fruit. The to dry the cone thoroughly, the scales open of their own
—_— Denese—: ietisiatttenendich ira nani x Oamdllne Vane
Sere SS
Se
252 SCIENCE OF AGRICULTURE. Parr II,
accord with a sudden jerk, ejecting the contained seeds: and if a number of them happen to burst together, which is often the case, the noise is such as to be heard at some considerable distance.‘The twisted awn of avena fatua(fig. 240.), or wild oat, as wellas that of geranium cicutarium, and some others, seems to have been intended particularly for the purpose of aiding the further dispersion of the seed, after being discharged from the plant or pericarp. This spiral awn or spring,
which is beset with a multitude of fine and minute hairs, possesses the property of contracting by means of drought, 240 and of expanding by means of moisture. Hence it remains\=
of necessity in a perpetual state of contraction or dilatation, dependent upon change of weather; from which, as well as from theadditional aid of the fine hairs, which act as so many fulcra, and cling to whatever object they meet, the seed to which it is attached is kept in continual motion till it either germinates or is destroyed. The awn of barley, which is beset with a multitude of little teeth all pointing to its upper extremity, presents also similar phenomena. For when the seed with its awn falls from the ear and lies flat upon the ground, it is necessarily extended in its dimensions by the moisture of the night, and contracted by the drought of the day. But as the teeth prevent it from receding in the direction of the point, it is consequently made to ad- vance in the direction of the base of the seed, which is thus often carried to the distance of many feet from the stalk on which it grew. If any one is yet sceptical with regard to the travelling capacity of the awn, let him only introduce an awn of barley with the seed uppermost between his coat and shirt sleeve at the wrist, when he walks out in the morn- ing, and by the time he returns to breakfast, if he has walked to any great distance, he will find it up at his arm- pit. This journey has been effected by means of the con- tinued motion of the arm, and consequently of the teeth of the awn acting as feet to carry it forward. Sap
1610. Where distance of dispersion is required, nature is also furnished with a resource. One of the most common modes by which seeds are conveyed to: a dis. tance from their place of growth is that of the instrumentality of animals. Many seeds are thus carried to a distance from their place of growth merely by their attaching themselves to the bodies of such animals as may happen accidentally to come in contact with the plant in their search after food; the hooks or hairs with which one part or other of the fructification is often furnished serving as the medium of attachment, and the seed being thus carried about with the animal till it is again detached by some accidental cause, and at last committed to the soil. This may be exemplified in the case of the bidens and myosotis, in which the hooks or prickles are attached to the seed itself; or in the case of galium aparine and others, in which they are attached to the pericarp; or in the case of the thistle and the burdock, in which they are attached to the general calyx. Many seeds are dispersed by animals in consequence of their pericarps being used as food.‘This is often the case with the seeds of the drupe, as cherries, sloes, and haws, which birds often carry away till they meet with some convenient place for devouring the pulpy pericarp, and then drop the stone into the soil. And so also fruit is dispersed that has been hoarded for the winter, though even with the view of feeding on the seed itself, as in the case of nuts hoarded up by squirrels, which are often dispossessed by some other animal, that not caring for the hoard scatters and disperses it. Sometimes the hoard is deposited in the ground itself, in which case part of it is generally found to take root and to spring up into plants. Though it has been observed that the ground-squirrel often deprives the kernel of its germ before it deposits the fruit it collects. Crows have been also observed to lay up acorns and other seeds in the holes of fence-posts, which being either forgot or accidentally thrust out, fall ulti- mately into the earth and germinate. But sometimes the seed is even taken into the stomach of the animal, and afterwards deposited in the soil, having passed through it unhurt.‘This is often the case with the seed of many species of berry, such as the mistletoe, which the thrush swallows and afterwards deposits upon the boughs of such trees as it may happen to alight upon. The seeds of the loranthus americanus, another parasitical plant, are said to be deposited in like manner on the branches of the cocoloba grandi- flora, and other lofty trees; as also the seeds of phytolacca decandra, the berries of which are eaten by the robin, thrush, and wild pigeon. And so also the seeds of currants or roans are sometimes deposited, after having been swallowed by blackbirds or other birds, as may be seen by observing a currant-bush or young roan-tree growing out of the cleft of another tree, where the seed has been left, and where there may happen to have been a little dust collected by way of soil; or where a natural graft may have been effected by the insinuation of the radicle into some chink or cleft. It seems indeed surprising that any seeds should be able to resist the heat and digestive action of the stomach of animals; but it is undoubtedly the fact. Some seeds seem even to require it. The seeds of magnolia glauca, which have been brought to this country, are said to have generally refused to vegetate till after undergoing this process, and it is Known that some seeds will bear a still greater degree of heat without any injury. Spallanzani mentions some seeds that germinated after having been boiled in water: and Du Hamel gives an_ account of some others that germinated even after having been exposed to a degree of heat measuring 235° of Fahrenheit. in addition to the instrumentality of brute animals in the dispersion of the seed might be added also that of man, who, for purposes of utility or of ornament, not only transfers to his native soil seeds indigenous to the most distant regions, but sows and cultivates them with care.‘
1611. The agency of winds is one of the most effective modes of dispersion instituted by nature. Some seeds are fitted for this mode of dispersion from their extreme minuteness, such as those of the mosses, lichens, and fungi, which float invisibly on the air, and vegetate wherever they happen to meet with a suitable soil, Others are fitted for it by means of an attached wing, as in the case of the fir-tree and liriodendron tulipifera, so that the seed, in falling from the cone or capsule, is immediately caught by the wind, and carried to a distance. Others are peculiarly fitted for it by means of their being furnished with an aigrette or down, as in the case of the dandelion, goat’s-beard, and thistle, as well as most plants of the class Syngenesia; the down of which is so large and light in proportion to the seed it supports, that it is wafted on the most gentle breeze, and often seen floating through the atmosphere in great abundance at the time the seed is ripe. Some have a tail, as in clematis vita alba. Others are fitted for this mode of dispersion by means of the structure of the pericarp, which is also wafted along with them, as in the case of staphylea trifolia, the inflated capsule of which seems as if obviously intended thus to aid the dispersion of the contained seed by its exposirig to the wind a large and distended surface with but little weight. And so also in the case of the maple, elm, and ash, the capsules of which are furnished, like some seeds, with a membranous wing, which when they separate from the plant the wind immediately lays hold of and drives before it.
1612. The instrumentality of streams, rivers, and currents of the ocean, is a further means adopted by nature for the dispersion of the seeds of vegetables. The mountain-stream or torrent washes down to the valley the seeds which may accidentally fall into it, or which it may happen to sweep from its ba iks when it suddenly overflows them. The broad and majestic river, winding along the extensive plain, and traversing the continents of the world, conveys to the distance of many hundreds of miles the seeds that may have vegetated at its source.‘Thus the southern shores of the Baltic are visited by seeds which grew
Wor I alte interior i g ie teri of jyod to be st ep 7 11088 scandens, ied thus know? t ti its DOW adduct oping t0 soil oF ci imate or countries {olo, Propagation. hem are fi
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1618, Sip
be regarded as an e the purpose of the bearing fruit much atree is lopped, at and bark a sort of anumber of youn ner, the moisture Would have been« 1619, Layers. cannot readily be case, the soil stim the currant and| branch to the surf 1620. Suckers o encircling the pr fruit-trees, Othe soil and is convert Zontal shoot from till it reaches the laurel, The tro f to the young bulbs Tiated by any partic Tespects, the runner Trom the parent pl tached, together wit 4g, and will constit 1), Grafting an bylmeans of grafting plant to the stem, gf one plant. The shoc Which itis affixed js altextension ofthe p 118 found to be of altering the quali ever in Propagatin Taled from seed+ al the patent plant 4 Srating was confined Of herbaceous Vegeta tthe potatoes the thd OD this subjeo baron de Tichoudy, I
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ulpy. peric: ded for the winter, ed up by squirrels, Ts and disperses it, lly found to take ften deprives the id to lay up acorns rust out, fall ulti- e stomach of the ten the case with rwards deposits
ich are eaten by times deposited, currant-bush or ind where there may have been rising that any is undoubtedly e been brought rocess, and it is nzani mentions ccount of some of Fahrenheit. qe
nature, Some of the mosses, to meet with a he fir-tree and caught by the furnished with t plants of the orts, that its abundance at - this mode of in the case ot he dispersion
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Boox[. PROPAGATION OF THE SPECIES. 253
in the interior of Germany, and the western shores of the Atlantic by seeds that have been generated in the interior of America. But fruits indigenous to America and the West Indies have sometimes been found to be swept along by the currents of the ocean to the western shores of Europe. The fruit of mimosa scandens, dolichos pruriens, guilandina bonduc, and anacardium occidentale, or cashew-nut, have been thus known to be driven across the Atlantic to a distance of upwards of 2000 miles; and although the fruits now adduced as examples are not such as could vegetate on the coast on which they were thrown, owing to soil or climate, yet it is to be believed that fruits may have been often thus transported to climates or countries favorable to their vegetation.
1613. Propagation by gems.‘Though plants are for the most part propagated by means of seeds, yet many of them are propagated also by means of gems; that is, bulbs and buds.
1614. The caulinary bulb is often the means of the propagation of the species: it generally appears in the axil of the leaves, as in dentaria bulbifera and Lilium bulbiferum; or between the spokes of their umbels, as in allium canadense; in the midst of the spike of flowers, as in polygonum viviparum and poa alpina. As plants of this last kind are mostly alpine, it has been thought to be an institution or resource of nature to secure the propagation of the species in situations where the seed may fail to ripen.
1615. The bud, though it does not spontaneously detach itself from the plant and form a new individual, will yet sometimes strike root and develope its parts if carefully separated by art and planted in the earth: but this is to be understood of the leaf-bud only, for the flower-bud, according to Mirbei, if so treated, always perishes.
1616. Propagation by the leaves. The species may sometimes be propagated even by means of the leaves; as in the aloe, sea-onion, and some species of arum, which if carefully deposited in the soil will
row up into new plants, by virtue, no doubt, of some latent gem contained in them. The fungi and ichens, according to Gertner, are all gemmiferous, having no sexual organs, and no pollen impregnat- ing agerm. In the genus Lycoperdon, the gelatinous substance that pervades the cellular tissue is con- verted into a proliterous powder; in clavaria, the fluid contained in the cavities of the plant is converted into a proliferous powder also; and in the agarics, hypnum, and poletus, vesicles containing sobolifer- ous granules are found within the lamina, pores, or tubes. Hedwig, on the contrary, ascribes to the fungi a sexual apparatus, and maintains that the pollen is lodged in the volva. But here it is to be recollected, as in the cases of the scutelle of the lichens, that all fungi are not furnished with a volva and consequently not furnished with pollen. The conferve and ulve, together with the genera Blasia and Riccia, are also, according to Gertner, propagated only by gems; while marchantia, anthoceros jungermannia, and lycoperdon, are said to be propagated both by gems and seeds.*
1617. Runners are young shoots issuing from the collar or summit of the root, and creeping along the surface of the soil; but producing a new root and leaves at the extremity, and forming a new individual, by the decay of the connecting link, as in the strawberry.
1618. Slips. The process of raising perennials by slips is well known to gardeners, and should perhaps be regarded as an extension of the old plant, rather than as the generation of a new one; though it serves the purpose of the cultivator equally well as a plant raised from seed, with the additional advantage of bearing fruit much sooner. But how is the root generated which the slip thus produces? If the trunk of a tree is lopped, and all its existing buds destroyed, then there will be protruded trom between the wood and bark a sort of protuberant lip or ring formed from the proper juice, and from which there will spring a number of young shoots. The formation of the root in the case of the slip is effected in the same man.. ner, the moisture of the soil encouraging the protrusion of buds at and near the section; and the bud that would have been converted into a branch above ground is converted into a root below.
1619. Layers. The mode of propagation by layers is practised upon trees that are delicate, and which cannot readily be propagated by means of slips; in which case the root is generated nearly as in the former case, the soil stimulating the protrusion of buds which are converted into roots. In many plants, such as the currant and laurel, this is altogether a natural process, effected by the spontaneous bending down of a branch to the surtace of the soil.
1620. Suckers or offsets. Many plants protrude annually from the collar a number of young shoots encircling the principal stem and depriving it of a portion of its nourishment, as in the case of most fruit-trees. Others send out a horizontal root, from which there at last issues a bud that ascends above the soil and is converted into a little stem, as in the case of the elm-tree and syringa. Others send out a hori- zontal shoot from the collar or its neighborhood; or ashoot that ultimately bends down by its own weight till it reaches the ground, in which it strikes root and again sends up a stem as in the currant-bush and laurel. The two former are called suckers or off-sets, though the term off-set should perhaps be restricted to the young bulbs that issue and detach themselves annually from bulbous roots.‘The latter is not desig- nated by any particular name, but may be regarded as a sort of natural layer, resembling also, in some respects, the runner; from which, however, it is distinguished in that it never detaches itself spontaneously from the parent plant, as is the case also with the two former. But if either of them is artificially de- tached, together with a portion of root or a slice of the collar adherring to it, it will now bear transplant- ing, and will constitute a distinct plant.
1621. Grafting and budding.‘he species is also often propagated, or at least the variety is multiplied byjmeans of grafting, which is an artificial application of a portion of the shoot or root of one tree or plant to the stem, shoot, branch, cr root of another, so that the two shal! coalesce together and form but one plant. The shoot which is to form the summit of the new individual is called the scion; the stem to which it is affixed is called the stock; and the operation, when effected, the graft. As the graft is merely an extension of the parent plant from which the scioncame, and not properly speaking a new individual so it is found to be the best method of propagating approved varieties of fruit-trees without any danger of altering the quality of the fruit, which is always apt to be incurred in propagation from seed but never in propagating from the scion. The scion will also bear fruit much sooner than the tree that is raised from seed; and, if effected on a proper stock, will be much more hardy and vigorous than if left on the parent plant. And hence the great utility of grafting in the practice of gardening. Till lately grafting was confined to the ligneous plants, but it is now successfully practised on the roots and shoots ot herbaceous vegetables; and the dahlia is grafted by the root; the melon on the gourd; the love-apple on the potatoe; the cauliflower on the cabbage,&c. by the shoot. A very ingenious tract has been pub- lished on this subject, entitled, Essai sur la Greffe de Vherbe des plantes et des arbres, par Monsr. Le Baron de Tschoudy, Bourgeois de Glaris. Paris, 1819.
Secr. X. Causes limiting the Propagation of the Species.
1622. Though plants are controlled chiefly by animals, yet they also control one another, From the various sources of vegetable reproduction, but particularly from the fer- tility and dispersion of the seed, the earth would soon be overrun with plants of the most prolific species, and converted again into a desert, if it were not that nature has set bounds to their propagation by subjecting them to the controul of man, and to the depre- dations of the great mass of animals; as well as in confining the germination of their seeds to certain and peculiar habitations arising from soil, climate, altitude, and other circumstances. In order to form an idea of the manner in which these act upon vegeta- tion; imagine that every year an enormous quantity of seeds, produced by the existing
a
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254 SCIENCE OF AGRICULTURE. Parr II,
vegetables, are spread over the surface of the globe, by the winds and other causes already mentioned, all of these seeds which fall in places suitable for their vegetation, and are not destroyed by animals, germinate and produce plants; then among these plants, the strongest, and largest, and those to which the soil is best suited, develope themselves in number and magnitude so as to choke the others. Such is the general progress of nature, and among plants, as among animals, the strong florish at the expense of the weak. These causes have operated for such a length of time, that the greater number of species are now fixed and considered as belonging to certain soils, situations, and climates, beyond which they seldom propagate themselves otherwise than by the hands of man.
Sect. XI, Evidence and Character of Vegetable Vitality.
1623. The power of counteracting the laws of chemical affinity is reckoned the best and most satisfactory evidence of the presence and agency of a vital principle as inherent in any subject. This principle, which seems first to have been instituted by Humboldt, is obviously applicable to the case of animals, as is proved by the process of the digestion of the food, and its conversion into chyle and blood; as well as from the various secretions and excretions effected by the several organs, and effecting the growth and developement of the individual, in direct opposition to the acknowledged laws of chemical affinity, which, as soon as the vital principle is extinct, begin immediately to give indication of their action in the incipient symptoms of the putrefaction of the deady body. But the rule is also applicable to the case of vegetables, as is proved by the intro-susception, digestion, and assimilation of the food necessary to their developement; all indicating the agency of a principle capable of counteracting the laws of chemical. affinity; which, at the period of what is usually called the death of the plant, begin also immediately to act, and to give evidence of their action in the incipient symptoms of the putrefaction of the vegetable. Vegetables are therefore obviously endowed with a species of vitality. But admitting the presence and agency of a vital principle inherent in the vegetable subject, what are the peculiar properties by which this principle is cha- racterised?
1624. Excitability. One of the most distinguishable properties of the vital principle of vegetables is that of its excitability or capacity of being acted upon by the application of natural stimuli, impelling it to the exertion of its vegetative powers; the natural stimuli thus impelling it being light and heat.
1625. The stimulating influence of light upon the vital principle of the plant is discoverable, whether in the stem, leaf, or flower. The direction of the stem is influenced by the action of light, as well as the color of its leaves. Distance from direct rays of light or weak light produces etiolation, and its absence blanching. The luxuriance of branches depends on the presence and action of light, as is par- ticularly observable in the case of hot-house plants, the branches of which are not so conspicuously directed, either to the flue in quest of heat, or to the door or open sash in quest of air, as to the sun in quest of light. Hence also the branches of plants are often more luxuriant on the south than on the north side; or at least on the side that is best exposed to light. The position of the leaf is also strongly affected by the action of light, to which it uniformly turns its upper surface. This may be readily perceived in the case of trees trained to a wall, from which the upper surface of the leaf is by con- sequence always turned; being on a south wall turned to the south, and on a north wall turned to the north. And if the upper surface of the leaf is forcibly turned towards the wall and confined in that position for a length of time, it will soon resume its primitive position upon regaining its liberty, but particularly if the atmosphere is clear. The leaves of the mallow are said to exhibit but slight indi- cations of this susceptibility, as also sword-shaped leaves; and also those of the mistletoe are equally susceptible on both sides. It had been conjectured that these effects are partly attributable to the agency of heat; and to try the value of the conjecture, Bonnet placed some plants of the atriplex in a stove heated to 25° of Reaumur. Yet the stems were not inclined to the side from which the greatest degree of heat came; but to a small opening in the stoves. Heat then does not seem to exert any perceptible influence in the production of the above effects. Does moisture? Bonnet found that the leaves of the vine exhibited the same phenomenon when immersed in water, as when left in the open air. Whence it seems probable that light is the sole agent in the production of the effects in question. But as light produces such effects upon the leaves, so darkness or the absence of light produces an eftect quite the contrary; for it is known that the leaves of many plants assume a very different position in the night from what they have inthe day.‘This is particularly the case with winged leaves, which, though fully expanded during the day, begin to droop and bend down about sunset and during the fall of the evening dew, till they meet together on the inferior side of the leaf-stalk, the terminal lobe, if the leaf is furnished with one, folding itself back till it reaches the first pair; or the two side lobes, if the leaf is trifoliate, asin the case of common clover. So also the leaflets of the false acacia and liquorice hang down during the night, and those of mimosa pudica fold themselves up along the common foot-stalk so as to overlap one another. Linneus has designated the above phenomenon by the appellation of The Sleep of Plants.‘The expansion of the flower is also effected by the action of light. Many plants do not fully expand their petals except when the sun shines; and hence alternately open them during the day and shut them up during the night. This may be exemplified in the case of papilionaceous flowers in general, which spread out their wings in fine weather to admit the rays of the sun, and again fold them up as the night approaches. It may be exemplified also in the case of compound fiowers, as in that of the dandelion and hawkweed. But the most singular case of this kind is perhaps that of the lotus of the Euphrates, as described by Theophrastus, which he represents as rearing and expanding its blossoms by day, closing and sinking down beneath the surface of the water by night so as to be beyond the grasp of the hand, and again rising up in the morning to present its expanded blossom to the sun. The same phenomenon is related also by Pliny. But although many plants open their flowers in the morning and shut them again in the evening, yet all flowers do not open and shut at the same time. Plants of the same species are tolerably regular as to time, other circumstances being the same; and hence the daily opening and shutting of the flower has been denominated by botanists The Horologium Flore. Flowers requiring but a slight application of stimulus open early in the morning, while others requiring more open somewhat later. Some do not open till noon, and some, whose extreme delicacy cannot bear the action of light at all, open only at night, such as the cactus grandiflora, or night-blowing cereus. But it seems somewhat doubtful whether or not light is the sole agent in the present case; for
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os shut alt i, calendula fu the last of W ss, But son sgn, and follow uf C0! jpyais the west 0 the ny Such flowers att tin ofthe sun and fy been observed Dy| hyd eren been inter story, in one of the wi by qhom she had I gover her griels 10 él wither eyesinvariab length transto rent to the sun. ened by Ovid as Flos caanot be the heliotr tan tbe the sun-flowe teen known to Ovid; has further remarked incline to the north, b cay satisfy bimself| eatsnodding, as if Wi a contraction of the fi has been thought by side; which is proba ing for its returning what is it that contr ctill full, would cou the morning,
1626, Heat a vital principle, hut the same thi leaves, flower, a annually, yet t the foundation the several perio the maturation ¢
1627. Frondescenc thesame SeaSOn, an later,‘The honeysu 10 the end of Februar and ash, which are| Many annuals do not Mencement of winter
atise(fom the pecul degre of it need Vays Concur to rende waren isby non Ha cepends upon the Me yeat. Hence it ha ‘Owing of his severa) x "respond best to ¢ Uline informs y yO ascertain the Teas being the best| : i Teeard to other ao male ae Precisely at the id Buide naturs 4 orescence,: a. Mdueed by
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le of vegetables is muli, impelling ght and heat, overable, whether ' light, as well as tiolation, and its f light, as is par- 80 conspicuously air, as to the sun he south than on of the leaf is also is may be readily leaf is by cou- all turned to the onfined in that its liberty, but but slight indi- ‘oe are equally butable to the e atriplex in a sh the greatest to exert any und that the
t in the open ts In question. Juces an effect position in the hich, though he fall of the Ibe, if the leaf “if the leafis quorice hang on footestalk ppellation of “Many plants them during spilionaceous n, and agail Jowers, as 1n that of the xpanding its
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Boox I. EVIDENCE OF VEGETABLE VITALITY. 255
it has been observed that equatorial flowers open always at the same hour, and that tropical flowers change their hour of opening according to the length of the day. It has been observed also, that the flowers of plants that are removed frem a warmer to a colder climate expand at a later hour in the latter. A flower that‘opens at six o’clock in the morning at Senegal, will not open in France or England till eight or nine, nor in Sweden till ten. A flower that opens at ten o’clock at Senegal, will not open in France or England till noon or later, and in Sweden it will not open at all. Anda flower that does not open till noon or later at Senegal, will not open at all in France or England. This seems as if heat or its absence were also an agent in the opening or shutting of flowers; though the opening of such as blow only in the night cannot be attributed either to light or heat. But the opening or shutting of some flowers depends not so much on the action of the stimulus of light as on the existing state of the atmosphere, and hence their opening or shutting betokens change. If the Siberian sow-thistle shuts at night, the ensuing day will be fine; and if it opens, it will be cloudy and rainy. If the African mari- gold continues shut after seven o’clock in the morning, rain is near at hand. And if the convolvulus arvensis, calendula fluvialis, or anagallis arvensis, are even already open they will shut upon the approach of rain, the last of which, from its peculiar susceptibility, has obtained the name of the poor man’s weatherglass. But some flowers not only expand during the light of day; they incline also towards the sun, and follow his course, looking towards the east in the morning, towards the south at noon, and towards the west in the evening; and again returning in the night to their former position in the morn- ing. Such flowers are designated by the appellation of Heliotropes, on account of their following the course of the sun; and the movement they thus exhibit is denominated their nutation. This phenomenon had been observed by the ancients long before they had made any considerable progress in botany, and had even been interwoven into their mythology, having originated, according to the records of fabulous history, in one of the metamorphoses of early times. Clytie, inconsolable for the loss of the affections of Sol, by whom she had been formerly beloved, and of whom she was still enamoured, is represented as brood- ing over her griefs in silence and solitude; where, refusing all sustenance, and seated upon the cold ground, with her eyes invariably fixed on the sun during the day, and watching for his return during the night, she is at length transformed into a flower, retaining, as much as a flower can retain it, the same unaltered attachment to the sun. This is the flower which is denominated heliotropium by the ancients, and des- cribed by Ovid as Flos qui ad solem vertitur. But it is to be observed, that the flower alluded to by Ovid cannot be the heliotropium of the moderns, because Ovid describes it as resembling the violet: much less can it be the sun-flower of the moderns, which is a native of America, and could not consequently have been known to Ovid; so that the true heliotropium of the ancients is perhaps not yet ascertained. Bonnet has further remarked that the ripe ears of corn, which bend down with weight of grain, scarcely ever incline to the north, but always less or more to the south; of the accuracy of which remark any one may easily satisfy himself by loooking at a field of wheat ready for the sickle; he will find the whole mass of ears nodding, as if with one consent to the south. The cause of the phenomenon has been supposed to be a contraction of the fibres of the stem or flower-stalk on the side exposed to the sun; and this contraction has been thought by De la Hire and Dr. Hales to be occasioned by an excess of transpiration on the sunny side; which is probably the fact, though there seems upon this principle to be some difficulty in account- ing for its returning at night; because if you say that the contracted side expands and relaxes by moisture, what is it that contracts the side that was relaxed in the day? The moisture, of which it is no doubt still full, would counteract the contraction of its fibres, and prevent it from resuming its former position in the morning.
1626. Heat as well as light acts also as a powerful stimulus to the exertions of the vital principle. This has heen already shown in treating of the process of germination; but the same thing is observable with regard to the developement and maturation of the leaves, flower, and fruit; for although all plants produce their leaves, flower, and fruit, annually, yet they do not all produce them at the same period or season.‘This forms the foundation of what Linnzus has called the Calendarium Flore, including a view of the several periods of the frondescence and efflorescence of plants, together with that of the maturation of the fruit.
1627. Frondescence. It must be plain to every observer, that all plants do not protrude their leaves at the same season, and that even of such as do protrude them in the same season, some are earlier and some later. The honeysuckle protrudes them in the month of January; the gooseberry, currant, and elder, in the end of February, or the beginning of March; the willow, elm, and lime-tree, in April; and the oak and ash, which are always the latest among trees, in the beginning or towards the middle of May. Many annuals do not come up till after the summer solstice; and many mosses not till after the com- mencement of winter.‘This gradual and successive unfolding of the leaves of different plants seems to arise from the peculiar susceptibility of the species to the action of heat, as requiring a greater or less degree of it to give the proper stimulus to the vital principle. But a great many circumstances will always concur to render the time of the unfolding of the leaves somewhat irregular; because the mildness of the season is by no means uniform at the same period of advancement; and because the leafing of the plant depends upon the peculiar degree of temperature, and not upon the return of a particular day of the year. Hence it has been thought, that no rule could be so good for directing the husbandman in the sowing of his several sorts of grain as the leafing of such species of trees as might be found by observation to correspond best to each sort of grain respectively, in the degree of temperature required. Linnzus (Stillingfleet informs us) instituted some observations on the subject about the year 1750, with a view chiefly to ascertain the time proper for the sowing of barley in Sweden; he regarded the leafing of the birch- tree as being the best indication for that grain, and recommended the institution of similar observations with regard to other sorts of grain, upon the grounds of its great importance to the husbandman, who may be said to attend to it in a manner instinctively; but as all the trees of the same species do not come into leaf precisely at the same time, and as the weather may alter even after the most promising indi- cations, no guide natural or artificial can be absolutely depended on with a view to future results.
1628. Kijlorescence. The flowering of the plant, like the leafing, seems to depend upon the degree of temperature induced by the returning spring, as the flowers are also protruded pretty regularly at the same successive periods of the season. The mezereon and snowdrop protrude their flowers in February; the primrose in the month of March; the cowslip in April; the great mass of plants in May and June; many in July, August, and September; some not till the month of October, as the meadow saffron; and some
not till the approach or middle of winter, as the laurustinus and arbutus. Such at least is the period of
their flowering in this country; but in warmer climates they are earlier, and in colder climates they are later. Between the tropics, where the degree of heat is always high, it often happens that plants will flower more than once in the year; because they do not there require to wait till the temperature is raised to a certain height, but merely till the developement of their parts can be effected in the regular operation of nature, under a temperature already sufficient. For the greater part, however, they flower during our summer, though plants in opposite hemispheres flower in opposite seasons. Butin all climates the time of flowering depends also much on the altitude of the place as well as on other causes affecting the degree of heat. Hence plants occupying the polar regions, and plants occupying the tops of the high mountains of southern latitudes, are in flower at the same season; and hence the same flowers are later in opening in North America than in the same latitudes in Europe, because the surface of the earth is Higher, or the winters more severe.
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256 SCIENCE OF AGRICULTURE.
Part II.
1629. Maturation of the fruit. Plants exhibit as much diversity in the warmth and length of time mecessary to mature their fruit as in their frondescence and flowering; but the plant that flowers the soonest does not always ripen its fruit the soonest. The hazel-tree, which blows in February, does not ripen its fruit till autumn; while the cherry, that does not blow til! May, ripens its fruit in June. It may be regarded, however, as the general rule, that if a plant blows in spring it ripens its fruit in sum- mer, as in the case of the currant and gooseberry; if it blows in summer it ripens its fruit in autumn, as an the case of the vine; and if it blows in autumn it ripens its fruit in the winter, But the meadow- saffron, which blows in the autumn, does not ripen its fruit till the succeeding spring.
1630. Such are the primary facts on which a Calendarium Flore, should be founded, They have not hitherto been minutely attended to by botanists; and perhaps their importance is not quite so much as has been generally supposed; but they are at any rate sufliciently striking to have attracted the notice even of savages. Some tribes of American Indians act upon the very principle suggested by Linnzeus, and plant their corn when the wild plum blooms, or when the leaves of the oak are about as large asa squirrel’s ears. The names of some of their months are also designated from the state of vegetation. One is called the budding month, and another the flowering month; one the strawberry month, and another the mulberry month; and the autumn is desig- nated by a term signifying the fall of the leaf. Thus the proposed nomenclature of the French for the months and seasons is founded in nature as well as in reason.
1631. Cold. As the elevation of temperature induced by the heat of summer is es- sential to the full exertion of the energies of the vital principle, so the depression of temperature consequent upon the colds of winter has been thought to suspend the ex- ertion of the vital energies altogether, But this opinion is evidently founded on a mistake, as is proved by the example of such plants as protrude their leaves and flowers in the winter season only, such as many of the mosses; as well as by the dissection of the yet unfolded buds at different periods of the winter, even in the case of such plants as pro- trude their leaves and blossoms in the spring and summer, and in which, it has been already shown, there is a regular, gradual, and incipient developement of parts, from the time of the bud’s first appearance till its ultimate opening in the spring.— The sap, it is true, flows much less freely, but is not wholly stopped. Du Hamel planted some young trees in the autumn, cutting off all the smaller fibres of the root, with a view to watch the progress of the formation of new ones. At the end of every fortnight he had the plants taken up and examined with all possible care to prevent injuring them, and found that, when it did not actually freeze, new roots were always uniformly developed.
1632. Energies of life in plants like the process of respiration in animals. Hence it fol- Jows, that even during the period of winter, when vegetation seems totally at a stand, the tree being stripped of its foliage, and the herb apparently withering in the frozen blast, still the energies of vital life are exerted; and still the vital principle is at work, carrying on in the interior of the plant, concealed from human view, and sheltered from the piercing frosts, operations necessary to the preservation of vegetable life, or protru- sion of future parts; though it requires the returning warmth of spring to give that degree of velocity to the juices which shall render their motion cognizable to man, as well as that expression to the whole plant which is the most evident token of life; in the same manner as the processes of respiration, digestion, and the circulation of the blood are carried on in the animal subject even while asleep; though the most obvious indications of animal lite are the motions of the animal when awake. Heat then acts as a powerful stimulus to the operations of the vital principle, accelerating the mo- tion of the sap, and consequent developement of parts; as is evident from the sap’s beginning to flow much more copiously as the warmth of spring advances, as well as from the possibility of anticipating the natural period of their developement by forcing them in a hot-house. But it is known that excessive heat impedes the progress of veget- ation as well as excessive cold; both extremes being equally prejudicial. And hence the sap flows more copiously in the spring and autumn, than in either the summer or winter; as may readily be seen by watching the progress of the growth of the annual shoot, which, after having been rapidly protruded in the spring, remains for a while stationary during the great heat of the summer, but is again elongated during the more moderate temperature of autumn.
1633. ) ag third wheel placed in the middle before, and generally of smaller size than the two others. ch t fo Ut ory It is used for conveying earth or gravel to short distances, as in canal and road making, A U0 JO) emOst h> Span an* ae and for these purposes it is a most valuable machine, and in very general use. e, 15 hooked iN z OOKE inp th
leptod ice iy, Tected, that if thon Sunsrcr. 2. Waggons. > COUar ha d non ht i=. i 7°.°
ad Upon i 2619. Waggons constructed in different forms, and of various dimensions, are made
wards, Thus the
use of in different districts of the kingdom; and mostly without much attention to the nature of the roads, or the articles which are to be conveyed by them; being, in general,
evo HE CaS heavy, clumsy, and inconvenient.-Waggons require much more power in the draught hy J? Y> foto) é Fa) SOU, the st than carts, and are far from being so handy and convenient, which is certainly an ob- apes jection to them, though they carry a much greater load. There can be no doubt that KS OF thetr rate more work may be done in any particular time, with the same number of horses, by carts nid y Y I?? y pidence does not tf than by waggons, in the general run of husbandry business, especially where the distance hi‘<=:: Pulling agains is small between loading and unloading._Waggons may perhaps be the most proper sort pecially tothe nei of conveyances for different sorts of heavy loads to a considerable distance; but for home
business, especially harvest and other field work, which requires to be speedily performed, carts seem decidedly preferable. 2620. Waggons, though they may possess some advantages over carts in long journeys,
ne sides and end le and whee
supposed to admit o and when fully loaded, the editor of The Farmer’s Magazine observes, are now admitted to be much less convenient for the general purposes of a farm, and particularly 1 a contrivance fr on occasions which require great dispatch, as in harvesting the crop.
2621. The Gloucestershire waggon, according to Marshal, is the best in England. By means of a crooked side-rail, bending archwise over the hind-wheel, the bodies or frames of them are kept low, without the diameter of the wheels being much lessened. The bodies are likewise made wide in proportion to their shallowness, and the wheels run six inches wider than those of most other waggons, whereby advantages in carrying top-loads are evidently obtained. Rudge, in his survey of the above district, says, that in many districts, waggons are the principal carriages employed in getting in the hay, and are either full-bedded, or with three-quarter beds. The former have the advantage of a greater length of bed, but are not so convenient for turning; the latter, though dimi-
| nished in size, have the convenience of locking the fore-wheels, and turning in almost as narrow a compass as a chaise, in consequence of the bed being hollowed out on each side near the middle, to admit the exterior part, or felloes of the fore-wheels. Both waggons are capable of carrying nearly the same weight, though the former, being deeper in the bed, is somewhat better adapted for the carriage of heavy articles, such as bags of corn,&c. For the purpose of harvesting, or carrying hay and straw, their length and width are increased by light ladders before and beliind, and of similar contrivances other declines called“rathes,”” the whole length of the sides. The ladders are put on and taken off at Joad, and to pres pleasure, in both kinds, but the side additions are generally fixed, except in the strait- headed, which are in use on the western side of the Severn; in these they are made
hed rack, screwee| | removeable, so as to leave the bed quite naked.
odiately connectel
so ic elevated 2622. The Berkshire waggon
mage 1S biel i c FSS tre weiglit of the(fig: 344.) is constructed on a sim- Vi we(Top 4 e ees we re.\\V/ en, A fiction ple and convenient principle, not W j
having the usual height or weight
+ to the steepness; s tf oh. A
2624, Rood’s patent waggon(fig. 345.) is.a contrivance whereby the same carriage
may, in a few minutes, be changed by the driver into two complete tip-carts of the com- mon dimensions, and applicable to all the uses of carts in general, or into one waggon, so complete, that a narrow inspection is necessary to distinguish it from a common waggon.‘The carts have a contrivance(a, a) to render them more safe and easy to the
horse in going down a hill, and have moveable side-ladders,(4, 6,) which will be found of
great use in carrying corn, bark,&c. It may be constructed with perfect facility by the wheel-wrights of any county; its shape and particular dimensions can be suited to the wishes of the owner, or to the local fashion of his neighborhood. The result of consi- derable experience and inquiries, enables its inventor to state, that it may, in any county, be completed for about five pounds more than the cost of two common carts. {t must, however, be admitted to be somewhat more clumsy than a common waggon.
Secr. VIII. Machines for threshing and otherwise preparing Corn Jor Market.
2625. Threshing and preparatory machines include threshing and winnowing machines, andawn and smut machines. Threshing machines are common in every part of Scotland, on farms where the extent of tillage-land requires two or more ploughs; and they are every year spreading more and more in England and Ireland. They are worked by horses, water, wind, and, of late, by steam; and their powers and dimensions are adapted to the various sizes of farms. Water is by far the best power; but as a supply cannot be obtained in many situations, and as wind and steam require too much expense for most farms, horses are employed more generally than any other power. Where wind-mills are erected, it is found necessary to add such machinery as may allow them to be worked by horses occasionally in very calm weather; and the use of steam must be confined, for the most part, to the coal districts.
2626. The operation of separating the grain from the straw was long performed by the flail, to the manifest injury of both the farmer and the community; for though, in some cases, the work was tolerably well performed, yet in a greater majority of instances it was otherwise. A quantity, perhaps, equal to the seed over the county, was lost even in the best cases; but where the allowance to the thresher was either a proportion of the produce, known by the name of lot, generally a twenty-fifth part; or, when he was paid in money, at so much per boll, the temptation to do the work in a slovenly mamner was so great, that a quantity, perhaps double of what was required for seed, was lost upon many farms; an evil that did not escape the notice of intelligent men, by several of whom attempts were made to construct ma- chines that would do the work more perfectly; this, therefore, seems to have led to the construction and use of this valuable machine.
2627. The first threshing-machine, as before observed(777.), was invented by Menzies, brother to the then sheriff-depute of East Lothian; the machinery was driven by a water-wheel, which put in motion a number of flails of the same kind with those used in threshing by the hand. Trials made with these machines were so far satisfactory, that a great deal of work was done in a given time, but owing to the velocity required to do the work perfectly, they soon broke, and the invention fell into disgrace.
2628. Another attempt, some time in the year 1758, was made by a farmer in the parish of Dumblane, in Perthshire. His machine was constructed upon principles similar to the flax-mill, having an upright shaft with four arms inclosed in a cylinder, three and a half feet in height, and eight in diameter, within which the shaft and its arms were turned with considerable velocity by a water-wheel.‘The sheaves, being presented by the hand, were let down from the top upon the arms, by which the grain was beat out, and, together with the straw, descended through an opening in the floor, where they were separated by riddles and fanners, also turned by the water-wheel.
2629. A third attempt, about twenty years after, was made by Elderton, near Alnwick, and Smart, at Wark, both nearly about the same time. Their machine was so constructed as to act by rubbing, in place of beating out the grain. The sheaves were carried between an indented drum, about six feet in dia- meter, and a number of rollers of the same description ranged round the drum, towards which they are pressed by springs, in such a way as to rub out the grain, when the drum was turned round. Upon trial,
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uo presents the c lor should be eq e Ameth
10s share of the labor, complicated nor€ vol vii, p. 719.{
9833, Winnowen which separates t from the first, an admit of this last abelt from it,|
2634. Advanta Magaxine obser be incurred for detached from| bad season quarter
Code of Agricul from the same ditiously,§, without di More quic 8, Ifa stack g served, and rend Smut, not be separated fron US, FQ0M-Sery damage fom bad Servants; but now, ate Obviated,
58, The advan Separating corn fro
4037, 4 vari nbbing and beat te been found ise of Meikle En id
ee ot to tpn| US Is fh 3 Ih each ihe Sar ct iit te other
OE TONS jg
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y oberg Boox IV. THRESHING MACHINES. 403
4 OCCasiony,
lest{yury tO th this machine was also found ineffectual, as along with its doing very little work ina given time, it bruised
ae the grain, and so materially hurt its appearance, as to lessen its value considerably in the market.
Mf fore.y 2630. The machine in its then imperfect state, was seen by the late Sir Francis Kinloch, Bart. of Gilmer-
cites“Wheel an ton, a gentleman well acquainted with mechanics, and who had paid much attention to country affairs; it
IS said tg be lich occurred to him that the machine might be rendered more perfect, by inclosing the drum in a fluted cover, et and fixing on the outside of it four fluted pieces of wood, capable of being raised a little from the circum-
Y OF straw oe y
7% stray 4{he ference by springs, in such a way as to press against the fluted cover, and to rub out the grain as the sheaves passed between them; but after repeated trials, it was found to bruise the grain nearly as much as the medel from which it was copied. Jn that state it remained for some time, and was afterwards sent by Sir Francis to a very worthy and ingenious character, Meikle of Know Mill, in his neighborhood, a mill-wright by profession, who had for a considerable time employed his thoughts upon the same subject. After much consideration and several trials, it appeared to Meikle that the purpose of separating“the grain from the straw might be accomplished upon a principle different from any that had hitherto been attempted, namely, by skutches acting upon the sheaves by their velocity, and beating out the grain, in place of pressing or rubbing it out; accordingly a model was constructed at Know Mill, in which the grain was beat out by the drum, to which it was presented through two plain feeding-rollers, which were afterwards altered for fluted ones. The first machine on a large scale, executed upon this principle, was done by a son of{Meikle’s, for Stein, of Kilbagie, in the year 1786, which, when finished, performed the work to the satisfaction of all parties, and established Meikle’s principle of beating out the corn as superior
r to all others. This superiority it still maintains, and is likely ever to do so.
2631. Many improvements have been made on these machines since their introduction, One of the most useful of these, perhaps, is the method of delivering the straw, after it has been separated from the corn by the circular rake, to what is called a travelling-shaker, which carries it to the straw-barn. This shaker, which revolves like the endless web used in cotton and other machinery, is composed of small rods, placed so near as to prevent the straw from falling through, while any thrashed corn that may not have beer formerly separated, drops from it in its progress, instead of falling along with it, where it would be trodden down and lost.
2632. Improved moie of yoking the horses.\t is well known that the work of horses in threshing-mills is unusually severe, if continued for any length of time; that they sometimes draw unequally; that they, as well as the machine itself, are much injured by sudden jerks and strains, which are almost unavoidable; and that, from this irregularity in the impelling power, it requires much care in the man who presents the corn to the rollers, to prevent bad thrashing. It is therefore highly desirable that the
the same Cartigoe
D-carts of the oom. labor should be equalized among the horses, and the movements of the machine rendered as steady as into one wane possible. A method of yoking the horses in such a manner as compels each of them to take his proper
uw Magen, share of the labor, has accordingly been lately introduced, and the necessary apparatus, which is neither t from a common complicated nor expensive, can be added to any machine worked by animal power.(Farmer’s; Magazine,
vol. viil. p. 279.§ 2638. and fig. 346.)
ea 2633. Winnowing machines added. A\i\ well-constructed threshing-mills have one winnowing machine,
ch Will be found of which separates the chaff from the corn before it reaches the ground; and a second sometimes receives it
rfect facility by t from the first, and gives it out ready for market, or nearly so. If the height of the building does not fl admit of this last addition, a separate winnowing machine, when the mill is of great power, is driven by
afe and easy tothe
an be suited tt a belt from it. In either of these ways there is a considerable saving of manual labor.
e result of cons. 2634, Advantages of threshing machines. With a powerful water-mill, the editor of The Farmer’s
Ag 50 Magaxine observes, it cannot be doubted, that corn is threshed and dressed at no more expense than must
aU It may, 1 any be incurred for dressing alone, when threshed with the flail. Besides, the corn is more completely
VO COMmon cart, detached from the straw; and, by being threshed er pediouslys a good deal of it may be preserved in a bad season which would have spoiled in a stack. The great advantage of transferring forty or fifty
Ir n wagcon, a~ A ns DMOn Waggon quarters of grain ina few hours, and under the eye of the owner, from the yard to the granary or
market, is of itself sufficient to recommend this invaluable machine, even though there were no saving
1 for Market of expense, sie(hl 2635. The specific advantages resulting from the use of the threshing machine, are thus stated in The nowing machine, Code of Agriculture: 1, From the superiority of this mode, one-twentieth part more corn is gained “part of Scotland, from the same quantity of straw, than by the old fashioned method. 2. The work is done more expe- d they areeren ditiously. 3. Pilfering is avoided. 4. The grain is less subject to injury. 5. Seed corn can be procured HU ACS without difficulty from the new crops, for those to be sown. 6. The market may be supplied with grain vorked by horses more quickly in times of scarcity. 7. The straw, softened by the mill, is more useful for feeding cattle.
1s are adapted t 8. If a stack of corn be heated, it may be threshed in a day, and the grain, if kiln-dried, will be pre-
i served, and rendered fit for use. 9. The threshing-mill lessens the injury from smutty grain, the balls of supply cannot b smut, not being broken, as when beaten by the flail; and, 10. By the same machine, the grain may be separated from the chaff and small seeds, as well as from the straw. Before the invention of threshing- tabs mills, farm-servants and laborers endured much drudgery; the large corn farmer sustained, much ere wind-ms damage from bad threshing; and had much trouble, vexation, and loss, from careless and‘wicked ow them to b servants; but now, since the introduction of this valuable machine, all his difficulties, in these respects, are obviated.
2636. The advantage that might be derived by the public, were threshing mills used in every case, for separating corn from the straw, is thus estimated by Brown of Markle.
pense for mos
‘steam must be
to the manifet The number of acres producing grain in Great one-twentieth part of the produce, or in quar- wel Britain, at Se eg 8,000,000 fers fat Chk-sieci patel= Fis eee 1,200,000 se al to the s The average produce in quarters, at 3 qrs. per acre, r The value of that increased quantity at 40s. per aps, equal to| 3 at z 3 2-=---- 24,000,000 quarter--=--=- S 12,400,000 the thresher was fhe increased quantity of grain produced by The saving in the expense of labor, at 1s. per part; or, when hi threshing-mills, instead of using the flail, at F| quarter-:-=a) siare--: 11,200,000 nner Was$0 great, z A; 5. aa. evil tha 2637. A variety of threshing machines have been made in England, both on the ims; 4‘°°& 5 5 wale Je to construct rubbing and beating, or scutching principle, and some combining both modes; but none ction alld.:° 7 e construction” have been found to answer the purpose of separating the grain from the straw so well as onaies, brother( those of Meikle, which is the kind exclusively used in Scotland and the north of
eel, which put in England. Trials made wilt ara°:=- Trials ma 2638. Meikle’s two horse threshing machine with the new invented yoking apparatus
ime, but owing' 5- A: Ke: seek x: ( fig. 346.), is the smallest size of horse engine which is made. From the limbers, or
ito disgrace.
sh es hanging pieces(a), by which the cattle draw when working this machine, proceed Detar withi the chains or ropes to which the horses are yoked, being united by an iron frame, qa Spree.. 2 ie sheaves, beill placed upon a lever, having liberty to turn on a bolt; one end of each of two
and,- ee Bite): x as bat el single ropes is fixed to this iron frame, and upon their other ends are fixed small arated D}: See tO. ie; ne blocks; in each of which is placed a running sheeve; and over these sheeves, pass k, and Smart, 3 double ropes or chains. One horse is yoked to these chains at the one arm, and the ahhig, in place 5° 5 te in de other at the other, so that the chains or ropes by which they draw, being connected by six fee- i‘ ae z 7 « which they@ the blocks, and the sheeves having liberty to move either way, if one of the horses relax, ni. Upon tm des
- a RE,= eS~ a
Sd Le
404 SCIENCE OF AGRICULTURE. 946 | sate Nai Fi— Kt) Coal i i oa|| g| iA || én.
immediately the other presses the collar to his shoulders. For instance, if the horse yoked to the chains at one arm(fig. 347 a.) were to relax, then the one yoked at the other(6) would instantly take up his rope, and pull the collar hard to his shoulders, so that the lazy horse must either exert himself, or be drawn backward; until the hooks, to which he is yoked, rest on the limbers. Thus each horse spurs up his fellow, they being both connected by the ropes and sheeves; their exertions are united, so as to form one
power applied to the machine, instead of two powers, independent of one another. By this means, the draught will always press the collars equally upon the horses’ shoulders, and though they are working in a circle, yet the strains of the draught must press fair, or equal, on their shoulders, without twisting their body to either side. This advantage cannot be obtained in the common way of yoking horses in a threshing machine, unless the draught-chains on each side of the horse be made in exact proportion in length to the diameter of the circle in which he walks, or the chain next to the centre of the walk made a little shorter than the one farthest from it, which is often neglected; but in this way of yoking the horses, the strain of the draught will naturally press equal on his shoulders when pulling, which of course must be less severe on the animal when walking in a circle.
2639. The advantages of this method of yoking horses to a threshing machine, which Was invented by Walter Samuel, blacksmith at Niddry, in the county of Linlithgow, have been fully ascertained by experience, and acknowledged by the most intelligent farmers m Scotland, They are as follow:
Iv.
Joos
ft nf Joy
ithout doubt gratls
4 cd
pe mach
0640, Meikl’s aoply of water vained, The on stat(0) Up” fed the waler-W dupontts
bnsplace cast mel
ference ven}, teteeth un te pinion. aened on the ihe threshing dn gator, 02 whic thrashed corn 1 wigs the feeding tat conduct the vard to the t net the threshin ihe straweshaket
gpindle, connec shaker,
641, Merkle
4 powerful and abundant, and apparatus for yo postions of the I Lorse wheel(b, 0) the horses separa time, wher
“642, Meikle’ LLXIL) is g ager(0 erect Northuberland 88, The ma (0 turn the
~atrally ung 1 thresh
Ig pa
tof fanners an ‘Uhrshed Tain TO Tith the tl
“att,
Mat rece
veg te Mi NY No the st
= a Pay tI], Boox IV. THRESHING MACHINES. 405 ie 1st. The very great comparative ease obtained for the cattle, in this the+heaviest part of their work. pS lly This, without doubt, is a real saving of labor; for it is no exaggeration to affirm, that five horses, yoked Li] by this apparatus to a threshing machine, will perform with equal ease the labor of six horses, of equal | y PI;: aoe:» 3——— strength and weight, yoked in the common way, each horse being independent of the rest. i 1| Qdly. A very great saving results in the tear and wear of the machine, from the regularity and unifor- Vik| mity of the movement. This will be acknowledged by any judge of the subject who witnesses the per- Ssral| formance. The sudden jerks and strains that generally take place in the usual way, are found to be quite re removed; the machinery moving with that kind of uniformity as if driven by water. In consequence of Nghe! i} which, the work is better performed, and that in a very perceptible degree, \ jj=.:. 5 | 2640. Meikle’s water threshing machine( fig. 348.), is the preferable engine when a | HL| supply of water can be —:= s Cy ‘ae obtained. The main axle 348 es / h or shaft(a), upon which is "| i\ fixed the water-wheel(0),\n7 | has placedupon its circum- TO a at ference cast metal seg- ee aed-——. ments(c),the teeth of which ES turn the pinion which is a the horse yoke fastened on the axle of HULA salt: at the other( the threshing drum; the 4=| her|: a)| Saas ders, so that platform, on which the un- a| +f) at the 3 hooks, to wh; threshed corn is spread, yi\ low they bine joins the feeding rollers,| Low, they beine: ) a8 to form that conduct the corn for- S10 form one ward to the threshers; next the threshing-drum is U~
the straw-shaker, driven by a leathern belt, passing over a sheeve, fixed on an iron spindle, connected with the axle of the water-wheel, and the sheeve on the axle of the
xe shaker.
NN 2641. Meikle’s threshing machine to be driven by water or by four horses(fig. 349.), is eh 349 \\' \A\ abe f \\ tL Wy: i NY\:——— a=a ‘\\ Cos a \\|(= ais——a it= || Ut | Bere N {||\ J x } bw WAnd iN we /| See i]| Bip
2
Cos
xs
a powerful and convenient engine, as advantage may be taken of water when it is abundant, and in dry seasons horses can be applied. To this machine the improved apparatus for yoking the horses is appended, and by the simple operation of varying the positions of the pinions on the common shaft(a), which communicate with the water and horse wheel(6, c), threshing may be carried on without interruption, either with the water or
= the horses separately; or a small quantity of water may be applied to assist the horses at any time, when a sufficient supply of water cannot be obtained to impel the machine alone. another, By 2642. Meikle’s threshing machine to be driven either by wind or six horses,(Gray, os’ shoulders, Pl. XII.) is a powerful but costly erection. On large corn farms, however, it will ist pres fait, answer to erect such machines; and there are frequent instances in Berwickshire and nis advantage Northumberland, of farmers incuring that expense on the security of twenty-one years ichine, unless leases. The machinery of the wind power of this machine is fitted up with a small in Iength to van to turn the large ones to face the wind, and with the machinery necessary to a of the roll on or otf the sails according as the wind increases or diminishes; by which means slected; but the naturally unst pady power of wind is rendered as regular as that of horses or water. 2s al oh The threshing part of this machine contains the usual apparatus, and also a complete oa Gun set of fanners and screens for cleaning the corn. To the board upon which the ss unthreshed grain is spread, and introduced between the feeding rollers, succeeds the neg drum, with the threshers, or beaters, fixed upon the extremity of its arms; then the a ee shaker, that receives the straw from the threshing drum, and conveys it to the second gow, ve
shaker, by which it is thrown down a sloping searce, either on the low floor, or upon a
sparred rack, which moves on rollers, turned by the machine, and by this means is con-
veyed into the straw-shed, or else into the barn yard. One searce is placed below the Dd 3
ent farmers
——
so e
Soa
Se
406 SCIENCE OF AGRICULTURE. Parr II.
threshing-drum, while its circular motion throws out the straw at an opening, into the straw-shaker, which conveys it to the second shaker; at the same time, the chaff and grain pass down through a searce, or sparred rack, into the hopper, which conveys it into the fanners, by which the corn is separated from the chaff, the clean grain running out at the opening, and the chaff, or any light refuse, blown out at the end by the rapid motion of the fans, which are driven by a band or rope, from a sheeve placed upon the axle of the threshing-drum, and passing over the sheeve, fixed upon the pivot of the fans.
2643. Metkle’s threshing machine to be impelled by steam is the same arrangement of inte- rior machinery with a steam engine outside of the barn connected by a shaft in the man- ner of the wind and water machines.
2644. Portable threshing machines, to be fixed in any barn, or in the open field, for threshing the crops of small farms, or for other purposes of convenience, are differently contrived. Excepting the hand machine, already described(2453.), all of them work by horses, and generally with one, or at most two. The most complete have a large frame of separating beams into which the gudgcons of the larger wheels work, and which retains the whole of the machinery in place. In general, there is no fanners; but sometimes a winnowing machine is driven by a rope from the threshing machinery. Such machines are considerably more expensive, in proportion to their power, than fixed machines; they are, therefore, not much used, and indeed might often be profitably substituted by the hand machine.
2645. Weir's portable two horse power threshing machine is one of the best in England. The corn is threshed on Meikle’s skutching principle, and is sometimes fed by fluted rollers, and sometimes introduced through a hopper directly over the drum, a mode which is found not to break the straw so much as the common mode.
2646. Lester’s portable threshing machine received the straw without the intervention of rollers, and separated the corn entirely by rubbing. It was an ingenious, but very imperfect machine, and never came into use.
2647. Forrest of Shifnal’s portable threshing machines have been employed in several parts of Warwickshire, Shropshire, and adjoining counties. It combines the rubbing and skutching methods, but does not perform either perfectly. Meikle’s machines, in fact, can alone be depended on, for completely separating the grain from the straw; though some others may render the straw less ineligible for thatch, or for gratifying the present taste in litter of the London grooms. 350
2648. The smut machine( fig.350.)is the invention s of Hall late of Ewel, in Surrey, now of the Prairie in the United States. It resembles that used for dressing flour, and consists of a cylinder per- forated with small holes, in the inside of which are a number of brushes, which are driven round with great rapidity. The wheat infected with smut is put into the cylinder, by a hopper(a), and the constant friction occasioned by the rapid motion of the brushes(6), effectually separates the smutty grain, which is driven out by the holes of the cylinder. Hall finds that it requires much more power to clean wheat by this machine, than to dress flour. A machine on this construction, might be a very useful appendage to every thresh-
ing machine, for the purpose of effectually clean-‘ PF eee k ing all wheat intended for seed, or such wheat, 4 aS 4 feel
meant for the market, as had a great proportion of smut in it.(Stevenson’s Surrey, p- 141.)
2649. To take the awns from barley where a threshing machine is used, a notched spar lined on one side, with plate iron, and just the length of the rollers, is fixed by a screw bolt at each end to the inside of the cover of the drum, about the middle of it, so as the edge of the notched stick is about one-eighth of an inch from the arms of the drum as it goes round. Two minutes are sufficient to put it on, when its operation is wanted, which is, when putting through the barley the second time; and it is as easily taken off. It rubs off the awns completely.
Sxct. IX. Mechan:cal and other fired Apparatus, for the Preparation of Food for Cattle, and grinding Manure. 2650. The principal food preparing contrivances, are the steamer, boiler, roaster, breaker or bruiser, and grinder. 2651. An apparatus for steaming food for cattle, the editor of The Farmer's Magazine observes, should be considered a necessary appendage to every arable and dairy farm, of a moderate size. The advantage of preparing different sorts of roots, as well as even
a And i i! (10s* wa substill
| gone aswell 8
horses, ye or poultry, wntace, that itd sen a(0 both h eam, 3 the senboled inW Liverpool, wh raw potatoes ant tage in every TSP wile the others and the extensive san in this way vay the waste 0 sng mith them dir work equal
9659, A steam
sil
0 1
(Cunven, of whi are given in The isles perfect th 9653. An ect his Implements the potatoes are quantity 1s was box, placed alr tatoes or other this simple ste the tubs for ho tion and repal number of st those who he any approved construction| waste of fuel, wooden frame found by expe Will serve for sullicent quant pounds weight sie in proportc Steamed: both| will best answver 254. A steay conomical plan bolle and woode ornear it, The| placed a to Ve or hand ba ther by the end Women, Ifthe teep, it will hy Hel 60 cows for “ned in anhoup “654, Boilers ‘lshments, "ZY principles( mee > M Y aud nu “hf SWine *“to half
Derg Wht( Com
dha gn w'ASS but
a prep
vd bakin
Pry II s Boox IV. STEAMING APPARATUS. 407
pening, into th » the al a grain, chaff, and hay, by means of steaming apparatus, for the nourishment of cattle, begins
Vhich conver: now to be generally understood. It has been long known that many sorts of roots, and n Btain runin particularly the potatoe, become much more valuable by undergoing this sort of prepara- the end by tion. And it is equally well known that when thus prepared they have been employed. alone as a substitute for hay, and with cut chaff both for hay and corn, in the feeding of horses, as well as other animals. To a farmer who keeps many horses or cattle, or even swine or poultry, the practice of boiling their food in steam is so great a saving, and an ad- vantage, that it deserves the most particular attention. Though potatoes have often been given raw to both horses and cattle, they are found to be infinitely preferable when cooked by steam, as they are rendered thereby much drier, and more nutritive, and better than when boiled in water; this has been long since shown by the experiments of Wakefield, of Liverpool, who in order to ascertain it, fed some of his horses on steamed and some on al raw potatoes, and soon found the horses on the steamed potatoes had greatly the advan- ret tage in every respect. Those on the steamed potatoes looked perfectly smooth and sleek, ane while the others were quite rough. Eccleston also found them useful instead of corn; Bf ee and the extensive and accurate trials of Curwen, have placed the utility and advantage of
t SOMetimes 4 a- o 7°-“ A a eerie them in this way beyond all dispute. Curwen has found that in their preparation in this Maa eae way the waste of the potatoe is about one-eighteenth part, and that straw when given bee along with them answers equally well as hay, as the horses keep their condition and do
aie their work equaily well.
2652. A steaming apparatus on a grand scale has been erected at Workington, by Curwen, of which an accurate ground plan and section with a copious description, are given in The Complete Farmer.(Art. Steaming Apparatus.) Though very extensive, it is less perfect than some others which we shall describe.
2653. An economical steaming and washing machine has been described by Grey, in
t
VQ Placed ty; On the pivot of ngement of inte. haft in the man.
ve 9
ul
but OU
the intervention his Implements of Husbandry,&c. The parts of this machine are few and simple; enous, but very the potatoes are washed and emptied into a large chest to drip; and when a sufficient aoe quantity is washed, this chest, by a motion of the crane, empties itself into a steaming- ployed in several box, placed almost immediately over the boiler; by which means a large quantity of po-
the rt
tatoes or other materials are steamed at once. The chief advantage attending the use of this simple steaming apparatus, he says, consists in saving manual labor, lifting on and off the tubs for holding the potatoes, or other materials to be steamed; also the expense of erec- tion and repairs of leaden or copper pipes, turn-cocks,&c. Its superiority over one with a number of steaming tubs, especially in a large operation, will be at once perceived by those who have paid attention to the subject.‘The steaming boiler may be made of any approved form, and of a size proportioned to the steaming-box, with‘a furnace of that construction which affords the greatest quantity of heat to the boiler, with the smallest waste of fuel. The steaming-box may be made either of cast metal plates, enclosed ina wooden frame, or of stout planks, well joined, and firmly fixed together. It has been found by experience, that a box, eight feet in length, five feet wide, and three feet deep, will serve for cooking, in the space of one hcur, with the attendance of one person, a suflicient quantity of potatoes to feed fifty ordinary horses, allowing each horse thirty-two pounds weight per day.‘The boiler and steaming-box, however, ought to be made of a size in proportion to the number of cattle to be fed, or the quantity of materials to be steamed; both boiler and steaming-box may be made of any form and proportion that
will best answer the intended purpose, with the least expense. 2654. A steaming machine on a simple and a economical plan(fig. 351.), consists of a os in boiler and wooden chest or box placed over { or near it. The box may be of any size, and fs so placed as to be supplied and emptied by E f wheel or hand barrows in the easiest manner,]>= urrey,p- 141.) either by the end or top, or both, being made notched spar toopen, Ifthe box is made 8 feet by 5, and ed by a screw 3 deep, it will hold as many potatoes as will fit, so as the feed 50 cows for 24 hours, and these may be 6 of the drum steamed inanhour.(I. Mag. vol. xviii. p. 74.) on is wanted, 2655. Boilers or boiling machines are only had recourse to in the case of very small y taken off establishments. By means of fixed boilers, or boilers suspended by cranes, on the Lodi if dairy principles(270), roots may be boiled, and chaff, weak corn, and other barn refuse, rendered more palateable and nutritive to cattle. Hay tea also may be made, which is
1 for Catlle, ono:. d for C/ a salutary and nutritive drink for horses or cattle when unwell, or for calving cows.
Food for swine and poultry may also be prepared in this way: or water boiled and
or, roaster,- salted to half prepare chaff and culmiferous messes for animals. 2656. A baking or roasting oven has been recommended for preparing the potatoe by . Magazine Pierrepont(Comm. Board of Ag. vol. iv.), which he states to be attended with superior ry farm, of advantages; but as, independently of other considerations, the use of such an oven must voll as evel! Dd 4 . ds SS SRR aes I Sl SET a z See
408 SCIENCE OF AGRICULTURE. Parr IT,
be limited to potatoes, a steaming machine, which will prepare any sort of food, is undoubt- edly preferable for general purposes. Many speculative plans of this sort, however in- genious, chiefly deserve notice as beacons to be avoided, or to prevent their being invented and described a second time. 5
Cuar. ITI. Ldifices in use in Agriculture.
9657. A varieby of buildings are necessary for carrying on the business of field cul ture; the nature and construction of which must obviously be different, according to the
4 fay‘or whie Vy are]>> Nee i aie 1° Cor S kind of farm tor which they areintended. Suitable buildings, the editor of The Farmer's
Magazine observes, are scarcely less necessary to the husbandman than implements and machinery; and might, without much impropriety, be classed along with them, and zi x rOT“te’©+=% a3 considered as one great stationary machine, operating more or less on every branch of la- bor and produce. There is nothing which marks more decidedly the state of agric
in any district, than the plan and execution of these buildings.
2658. In erecting a farmery, the first thing that deserves notice is its situation, both in regard to the other parts of the farm, and the convenience of the buildines them
: Se: D i selves. In general, it must be of importance on arable farms, that the buildings Te) y« oe Y« i< ei Ae S should be set down at nearly an equal distance from the extremities; or so situate 7“Mm> a£> that the access from all the different fields should be easy, and the distance from those hd> o. zs
most remote, no greater than the size of the farm renders unavoidable. The advantages© oan.:=:~- corr of such a position in saving labor, are too obvious to require illustration; and yet this matter is not nearly so much attended toas its importance deserves. In some cases, however, itis adviseable to depart from this general rule; of which one of the most obvious is, Ww here the command of water for a threshing-mill, and other purposes, can be better
secured in another quarter of the farm.
ORE He fn y. y 0, ar> Reps. AS‘ fF««
2659. The form most generally approved for a set of offices, is that of a square, or rather a rectangular parallelogram; the houses being arranged on the north, east, and west sides, and the south side fenced by a stone wall, to which low buildings, for calves, pigs
::: c 8S» poultry,&c, are semetimes attached. The space thus inclosed is usually alloted to young cattle: these have access to the sheds on one or two sides, and are kept separate accord- ing to their size or age, by one or more partition-walls. The farmer’s dwelling-house stands at a short distance from the offices, and frequently commands a view of the inside of the square; and cottages for servants and laborers are placed on some convenient spet, not far from the other buildings.
2660. The different buildings required for the occupation of land are chiefly those de- voted to live stock, as the stable, cow-house, cattle sheds,&c.; those used as repositories or for conducting operations, as the cart-shed, barn,&c.; and human habitations or cot- tages and farm-houses. After noticing the separate construction of these edifices, we shall exemplify their combination in different descriptions of farmeries.
ulture
Sect. I. Buildings for Live Stock.
2661. Buildings for agricultural live stock are the stable, cow-house, cattle houses and cattle sheds, sheep houses, pig-styes, poultry houses, rabbitry, pigeonry, and bee-house.
2662. The stable is an important building in most farmeries; it is in general placed in the west side of the square, with its doors and windows opening to the east. No- thing conduces more to the health of horses than the having a good and wholesome air. The situation of the stable should always be on a firm, dry, and hard ground, that in winter the horse may go out and come in clean; and where possible, be built some- what on an ascent, that the urine and other liquid matters may be easily conveyed away by means of drains for the purpose. As there is no animal that delights more in clean- liness than the horse, or that more dislikes bad smells, care should be taken that there be no hen-roost, hog-styes, or necessary houses near the place where the stable is to be built. The swallowing of feathers, which is very apt to happen, when hen-roosts are near, often proves injurious to horses. The walls of a stable ought to be of brick rather than stone, and should be made of a moderate thickness, two bricks or a brick and a half at least, or the walls may be built hollow, not only for economy, but for the sake of warmth in the winter, and to keep out the heat in thesummer.‘The windows should be proportioned in nuinber to the extent, and made on the east or north side of the building, that the north wind may be let in to cool the stables in the summer, and the rising sun all the year round, especially in winter. They should either be sashed or have large casements for the sake of letting in air enough; and there should always be close wooden shutters,
Jos IV.
syning 01 holt wi done, but wil chould b there shoul dereath the flo ie raised t0 0 le ino 11088 place van througt aciclaly, bt sce for him to nay be taken ol qunger ma) be sire te horse 0663, 4 lft
teen or twenty,
(d be
ventilation. er to the g
lowed for h This, with a pa atesertise, Wl
enabled to eat if jatt of the rac and should tert before one hor into it, and ren to make the s put into this 2 hay is often wasted. It 1 considerable’ the horse hay it into the rac need not be during the ti manger, fron under the h It will ako|
Means, not u
isall whi the centre of|
UNS add Alc
there is Suiicien eto th ittle Creu Temain anding ler, It is muc! ) stand in the
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ANCE fro all, about “el, by Which aii thes Move x
“OT, Porm
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Of food S sort, how
Tos Never Ins
Hel being
It, ACCOrdinD fy 3 Ot
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Siess of field Cut
iD inn! » Ap leMents an ant
218 To cht f 1S its Situation,
them
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+)’ WON; and yet tis
In some
I the most obvious
8S, can be better
| square, or rather , east, and west fi r calves, nis, r alloted to young Separate accord s dwvelling-hous ew of the inside
me convenient
uiefly those de. as repositories Itations or cot. e edifices, we
4 tle houses and 1 bee-house, eneral placed 1¢ east. No- 1d wholesome { ground, that e built some- onveyed away nore in clean- at there be 00 5 to be built e near, often yather than nda half at e of warmth roportioned , that the all the year cements for on shutters,
Menta
Boox IV. BUILDINGS FOR LIVE STOCK. 409
Sundouby.
turning on bolts, that the light may be shut out at pleasure. Many pave the whole stable with stone, but that part which the horse is to lie on is often boarded with oak planks, which should be laid as even as possible, and cross-wise rather than length-wise; and there should be several holes bored through them to receive the urine and carry it off un- derneath the floor by gutters into one common receptacle. The ground behind should be raised to a level with the planks, and be paved with small pebbles. There are mostly two rings placed on each side of the manger, or stall, for the reins of the horse’s halter to run through, and a logger is to be fixed to the ends of these, sufficient to poise them per- pendicularly, but not so heavy as to tire the horse, or to hinder him from eating; the best place for him to eat bis corn in, is a drawer or locker, which need not be large, so that it may be taken out at pleasure to clean it, by which means the common dirtiness of a fixed manger may be avoided, Many people are against having arack in their stables; they give the horse his hay in a trough bin, formed of boards with an open bottom.
2663. A lofty stable is recommended by White(Treatise on Veter. Med. p. 1.), fif- teen or twenty but never less than twelve feet high, with an opening in the ceiling for ventilation. The floor he prefers is brick or limestone, inclining not more from the manger to the gutter than an inch ina yard. Some litter, he says, should always be al- lowed for a horse to stale upon, which should be swept away as often as is necessary. This, with a pail or two of water, thrown upon. the floor, and swept off while the horse is at exercise, will keep the stable perfectly clean, and free from offensive smells.
2664. The depth of a stable should never be less than twenty feet, nor the height less than twelve. The width of a stall should not be less than six feet clear. But when there is sufficient room, it is a much better plan to allow each horse a space of ten or twelve feet, where he may be loose and exercise him- selfa little. This will be an effectual means of avoiding swollen heels, and a great relief to horses that are worked hard. With respect to the rack and manger, White prefers the former on the ground rising three feet high, eighteen inches deep from front to back, and four feet long. The manger, eighteen inches deep, eighteen inches from front to back, and five feet in length. The rack he prefers being closed in front, though some farmers prefer it open, alleging that horses when lying down will thus be enabled to eat if they choose. A close-fronted rack, however, is better adapted for saving hay.‘The back part of the rack should be an inclined plane made of wood; should be gradually sloped towards the front; and should terminate about two feet down. Such a rack will hold more hay than ever ought to be put before one horse.‘The advantages of this rack are numerous: in the first place, the hay is easily put into it, and renders a.hay-loft over the stable unnecessary; which ought to be an inducement to the builder to make the stable as lofty as it ought to be, and render the ventilation unnecessary, All the hay that is put into this manger will be eaten, but in the common rack it is well known that a large portion of the hay is often pulled down upon the litter, and trodden upon, whereby a considerable quantity is often wasted. It prevents the hay seeds or dust from falling upon the horse, or into his eyes; and what is of considerable importance, though seldom attended to, there willbe an inducement to the horse-keeper to give the horse hay in small quantities at a time, and frequently, from the little trouble which attends putting it into the rack. The saving in hay that may be effected by the use of this rack is so apparent, that it need not be dwelt upon. A great saving also may be made in oats by so fastening the horse’s head during the time of feeding that he cannot throw any of them out of the manger. This kind of rack and manger, from being boarded up in front, will effectually prevent the litter from being kept constantly under the horse’s head and eyes, by which he is compelled to breathe the vapors which arise from it. It will also prevent him from getting his head under the manger, as sometimes happens, by which means, not unfrequently, the poll evil is produced. The length of the halter should be only four feet from the head stall to the ring through which it passes: this will admit of his lying down with ease, and that is all which is required. The ring should be placed close to that side where the manger is, and not in the centre of the stall.‘The side of the stall should be sufficiently high and deep to prevent horses from biting and kicking each other. When the common rack and manger are‘preferred, the rack staves should be perpendicular, and brought nearly down to the manger, and this may easily be done with- out the necessity of a hay-loft, and the manger may be made deep and wide as described.
2665. The window of the stable should be at the south-east end, and the door at the opposite end. The yvindow should be as high as the ceiling will admit of, and in size proportioned to that of the stable. In one of twelve feet high, it need not come down more than four feet, and it will then be eight feet from the ground, and out of the way of being broken. The frame of the window should be moveable upon a pivot in the centre, and opened by means of a cord running over a pulley in the ceiling, and fastened by means of another cord. With a window of this kind, in a stable of three or four horses, no other ventilation will be required: a person never need be solicitous about finding openings for the air to enter, where
- there is sufficient room above, and means for it to escape. A stable thus constructed will be found con- ducive to the health and comfort of horses, and will afford an inducement to the horse-keeper to attend to every little circumstance which may contribute to cleanliness. He will not allow the smallest bit of dung to remain swept up at one end of the stable, as it commonly is. The pails should be kept outside, and not standing about the stable, as they commonly are. If it is necessary to take off the chill from water, it is much better, and more easily done, by the addition of a little hot water, than by suffering it to stand in the stable; and while the horses are at exercise, the litter should be all turned out to dry, and the brick floor well washed or swept out.]> if~ goal different heights, or the same height 1 -yard in with a gangway or ladder attached, for ee)— f labor, as wel the fowls to ascend: but where com- g==— d f——— are generally, fort and cleanliness is studied, a pre- CZ u K— Is, there are no ferable mode is to form a sloping stage 1 mS n in, and none of spars(fig. 355 a, 6), for the poultry é\ ding. In order to sit on; beneath this stage may be\ e places where two ranges of boxes for nests(c, c); the\ s:’?\ all moisture, roof(d) should have a ceiling to keep\ --° ce, Cc S he areas of at the whole warm in winter, and the;— EIN ! divisions, fo door(e) should be nearly as high as i f L S
the ceiling for ventilation, and should
he allowed to
of equal size, have a small opening with a shutter at bottom, which, where there is no danger from dogs
therefore, be or foxes, may be left open at all times to admit of the poultry going in and out at plea-
Po dient. sure, and especially for their early egress during summer. The spars on which the
Pavia clawed birds are to roost, should not be round and smooth, but roundish and roughish,
Se oeat dee iene branch of a tree. The floor must be dry, and kept clean for the web-footed kinds.
2685. The rabbitry is a building of rare occurrence in agriculture, and where it is re-
ee quired differs little from the piggery, consisting of a yard for exercise and receiving ragged coats, food, and a covered close apartment connected, for repose, sleep, and the mothers and eran young. In the latter are generally boxes a foot or more high and wide, and divided ficted with into compartments of two or more cubic feet for the rabbits to retire into, and bring | aka forth their young. Where young rabbits are fed for the market, the mother and off- Becerra spring are generally confined to hutches, which are boxes a little larger than the com-
mon breeding boxes, and kept in a separate apartment. In treating of the rabbit (Part III.) these and other contrivances for the culture of this animal, will be brought into notice.
be let out to ress from that
2686. The pigeonry is a structure not more frequent than the rabbitry, being scarcely admissible in professional agricul-
356 domestic
ty ougi ture, excepting in grazing districts, where 1 the case; the birds have not so direct an opportunity
people are of injuring corn. Sometimes they are made
or, is not, an ornamental appendage to a proprietor’s provided farmery, or to a sheep-house in a park sper divi(fig. 356.), or other detached building; ly do of and sometimes a wooden structure, raised ens, and from the ground on one or more posts, is idered so formed on purpose for their abode. What- son, with ever may be the external form, the interior or near&
414
arrangement consists of a series of boxes or cavities, formed in or against the wall ge- nerally about a foot high and deep, and two feet or less long; one half of the front is left open as an entrance, and the other is closed to protect the female during incubation.
(See Pigeon, Part III.) 2687. The apiary is a building or structure seldom wanted, excepting to protect hives from thieves; then a nitch or recessin a wall to be secured in front by two or more: iron bars, is a simple and effectual mode.= Sometimes apiaries are made ornamental (fig. 357.), but the best bee masters set little value on such structures, and prefer keeping their bees detached in single hives for suf- ficient reasons.‘These hives may be chained to fixed stools in Huish’s manner.(See Bee,
art IV.)
Sect. II. Buildings as Repositories, and for performing in-door Operations.
2688. Buildings for dead stock and crop occupy a considerable portion of the farmery, and include the barn, granary, straw and root-houses, cart-sheds, tool-house, harness- room, and when farming is conducted on a very extensive scale, the smiths’ and carpen- ters’ work-rooms.
2689. The corn barn, or building for containing, threshing, and cleaning corn, has undergone considerable change in form and dimensions in modern times. Formerly it was in many cases made so large as to contain at once all the corn grown on afarm; and in most cases it was so ample as to contam a great portion of it. But since the mode of forming small corn stacks became more general, and also the introduction of threshing machines, this description of building is made much smaller. The barn, especially where the corn is to be threshed by a machine, is best placed on the north side of the farmery, as being most centrical for the supply of the straw yards, as well as the stables and cattle sheds. In this situation it has also the best effect in an architectural and picturesque point of view(fig. 358.) Suppose an octagon form chosen for a farmery with the barn (1), straw-room and granary over(2) ,and mill-shed (3), to the north; then on the left of the barn may be the stable for work-horses(4), and riding-horse stable(5), cattle-house(6), cow-house(7), sick horse(8), sick cow(9), cattle-sheds(10), cart- shed(11), boiling and steaming house(12), root- house(13), chaff and other stores for steaming, or mechanic’s work-shop(14), piggeries(15), poultry and rabbiting(16). The yard may be divided in two by a wall running north and south, with a pump, well, or other supply of water in the centre(ime The rick-yard(27), should be to the north of such a farmery for easy conveyance to the barn: the main entrance(28) should be from the south opposite the dwelling-house; side entrances(26) should lead to different parts of the farm and to the main roads of the country, and there should be ponds(25) for washing the horses’ feet and for the poultry. We have elsewhere shown the same accommodations arranged in a square
and circular outline(780.).
130
2690. The English corn barn for containing a large quantity of corn in the straw, and for threshing it out by flails, may either be constructed on wooden frames covered with planks of oak, or be built of brick or stone, whichever the country affords in the greatest plenty; and in either case there should be such vent- holes, or openings in their sides or walls, as to afford free admittance to the air, in order to prevent the mouldiness that would otherwise, from the least dampness,” lodge in the grain."The gable-ends are pro- bably best of brick or stone, on account of greater solidity; the whole may be roofed with either thatch or tiles, as can be most conveniently procured. It should have two large folding-doors facing each other, one in each side of the building, for the convenience of carrying in or out a large load of corn in sheaves; and these doors should be of the same breadth with the threshing-floor, to afford the more light and air; the
SCIENCE OF AGRICULTURE. Parr II.
iz
opal,‘The thes inportant object| the building, but ways be so forme kinds of Hors, ¥3 earthy kinds, sto sd put together, they are sometime rence in many© by eighteen or tt
a, Threshing. to feet, The best besuperior to floors ¢ foors is owing iN pé them, In order to' deoth of about six 1 ¥ ones, is mixed Wil isthen worked tog jg spread as smooth in drying, it must crevices are filled.
9693, Boarded t vice, Will ast a I after they are be 904. Earthen the making of tt the case in part 9695, Brick fl but on account ¢ grain of any kin
0; sf St
NYO,
is first laid with “ dowwled” togel! Way, on each sid truly level, verm effectually prev
able that the plan that where barf than such
ate ¢| threshing upon, th 4697, The th
the rround“plan the machinery, chite or even ty this case is in thr SE 48 t0 contain tered by a loade fr future operat thinery and the ¢ Toki use, Thy af keeping g con ler and for lit
2698, Tho hay uth or Cast, or tol itg from 30 Tey usta] ay ater SasOns of Atty, Weiching
formed oe
by, ing barn,{
Sof the mow
"tS naa
Pan te
Book IV. BUILDINGS AS REPOSITORIES. 415 Ainst the ve Wall og, of the front ot former for the threshers, and the latter for winnowing. Over the threshing-floor, and a httle,above the Urine} Whe reach of the flail, poles are often laid across from one beam to another, to form a kind of upper-floor, upon 5 Metbaton, which’the thresher may throw the straw or haulm, to make an immediate clearing, till he has time to
stow it properly elsewhere: and on the outside, over the great doors, it is sometimes convenient to have a large pent-house, made to project sufficiently to cover a load of corn or hay, in case a sudden storm should come on before it can be housed; and also to shelter the poultry in the farm-yard in great heat or bad weather. It was formerly the custom in countries that abounded in corn to have separate barns for wheat, for spring-corn, such as barley and oats, and for peas, tares, lintels, clover, saintfoin,&c. but where the grain can be stacked, the heavy expense of so many buildings of this kind may be avoided. Onno description of farm buildings has so much needless expense been incurred as in barns. The most ostenta- tious in England are those on Coke’s estate in Norfolk; they are built of fine white brick, so large and unscientifically constructed that they cannot be filled with corn from the fear of bursting the side walls.
2691. The threshing-floor or space, on which the grain is threshed out by the flail, is an important object in the English barn. It is for the most part made in the middle of the building, but may be laid down in any other part, if more convenient, and should al- ways be so formed as to be perfectly close, firm, and strong. In constructing these kinds of floors, various sorts of materials are employed, such as compositions of different earthy kinds, stones, lumps, bricks, and wood.‘The last substance, when properly laid and put together, is probably the best and most secure from damp. When made of wood, Operation, they are sometimes so contrived as to be moveable at pleasure, which is a great conve- nience in many cases: they are made of different dimensions, but from twelve to fourteen by eighteen or twenty feet, are in general proper sizes for most purposes.
\ of the farmer, I-house, harness,
1) ths and carpen. 2692. Threshing-floors in Gloucestershire, Marshal observes, are of a good size, when from 12 to 14by 18 to 20 feet. The best of oak, some of stone; but a species of earthen floor, which is made there, is thought to
: f be superior to floors of stone, or any other material, except sound oak-plank. The superior excellency of these
and cleaning floors is owing in part to the materials of which they are formed, and in part to the method of making 1 modern times them. In order to this, in some places, the surface of the intended threshing-place is dug away to the a depth of about six inches, and the earth thus taken out, when of a proper kind, after being well cleared of Q“stones, is mixed with the strongest clay that can be procured, and with the dung of cattle. This mixture es is then worked together with water, till it is of the consistence of stiff mortar, and the compost thus made is spread as smooth as possible with a trowel, upon the spot from whence the earth was taken. As it cracks in drying, it must frequently be beaten down with great force; or rolled with'a heavy roller until all the crevices are filled up: and this must be continued till it is quite solid, hard, dry, smooth, and firm.
2693. Boarded threshing-floors, made of sound, thick, well-seasoned planks of oak, are excellent for ser- vice, will last a long time, and may be converted into good floorings for rooms, by plaining them down, after they are become too uneven for the purpose originally intended.
2604. Earthen threshing-floors should not be advised, except where good materials can be procured, and the making of them be performed in the most perfect manner, which, as we have noticed(2692.) is only the case in particular instances and districts.
9695. Brick floors, when well laid down, may, in some cases, make a tolerable floor for many purposes, but on account of their not only attracting, but retaining moisture, they are not tobe recommended, where grain of any kind is to continue much upon them.
2696. In constructing wooden floors the most usual mode is that of nailing the planks, or boards of which they are composed, after their edges have been shot true, and well fitted and jointed, close down to wooden joists or sleepers, firmly placed and secured upon the ground, or other place for the purpose. But in the midland districts, instead of the planks being nailed down to sleepers in the ordinary way, the floor is first laid with bricks, and the planks spread over these, with no other confinement than that of being “ dowled” together, that is, ploughed and tongued, and their ends let into sils or walls, placed in the usual way, on each side the floor. By this method of putting down the planks, provided the brick-work he left truly level, vermin cannot have a hiding-place beneath them; and a communication of damp air being effectually prevented, floors thus laid are found to wear better than those laid upon sleepers. It is observ- able that the planks, for this method of laying, ought to be thoroughly seasoned. It is evident, however, that where barn-floors can be made hollow, they must be much better for the purpose of threshing upon, than such as are either placed on brick-work, or the ground. From their greater pliability and elasticity in threshing upon, the grain is of course threshed out with more ease, certainty, and dispatch.
2697. The threshing-mill barn is not restricted to any size; but it answers best when the ground-plan is a parallelogram, the width from 20 to 30 feet, according to the size of the machinery, and the height from 15 to 20 feet, in order to allow one winnowing ma- chine or even two to be placed under the threshing part of the machinery. The barn in this case is in three distinct divisions: the first, for the unthreshed corn, should be of such a size as to contain an ordinary stack, and, if possible, it should be so contrived as to be en- tered by a loaded cart; which, whether the corn be threshed as carried in, or be laid up for future operations, is a great saving of labor. The second division contains the ma- chinery and the corn floor, and should be enclosed with boards so as to be locked up when not in use. The third division is the straw barn, which should be so large as to admit of keeping a considerable quantity of different kinds of straw separately, accessible for fodder and for litter.
2698. The hay-barn is commonly constructed of timber, and sometimes is open on the south or east, or even on all sides. In Middlesex, there are many hay-barns capable of holding from 30 to 50, and some even 100, loads of hay. They are found to be ex- tremely useful and convenient during a catching and unsettled hay-harvest, and also at
ees, other seasons of the year. In wet and windy weather, they afford an opportunity of ashing it out cutting, weighing, and binding hay; none of which operations could, at sucha time, be of brick or performed out of doors. Most farmers agree that hay may be put together earlier, even by euch vent a day, ina barn, than it would be safe to do in a stack. They advise, however, that the wrevent th::: é: Be t0- sides of the mow should be raked or pulled, clear of the quartering of the barn; and, nds are| aa S 5 ic or thatch 01 when thus managed, they are of opinion, that the hay will be as good in the barn as in the h other, one heaves; and and air; tht
ta ate oe Tn er ao x A Pa SS
416 SCIENCE OF AGRICULTURE. Parr FI.
stack. In the driest seasons, barns are a saving, and, in wet seasons, the ready assistance which they afford, in speedily securing the hay, has been known to make a difference in price of twenty shillings per load. Many persons, on the other hand, think hay is more apt to heat in a barn than in the open air; and that they present no advantages which may not be obtained by the canvass stack cover, If they do not possess considerable advan- tages, then the loss must be great, as the erection of such barns is a heavy expense,
2699. The granary, in barns with threshing machines, is almost always formed imme- diately above the floor on which the machine works; and which, among other advantages, admits raising the corn to it directly from the ground-floor, either by the threshing-mill itself, or a common windlass, easily worked byone man. When it is to be taken out and carried to market, it may be lowered down upon carts, with the utmost facility and dispatch, There is evidently no greater expense incurred by this arrangement; for the same floor and height of side-walls that must be added to the barn, are required in whatever situ- ation the granary may be; and it possesses several advantages. Owing to its being higher than the adjacent buildings there is a freer circulation of air, and less danger of pilfering, or of destruction by vermin; the corn may be deposited in it as it is dressed, without being exposed to the weather, while the saving of labor is in most cases considerable.
2700. The construction of the agricultural granary has in it nothing particular; being, in fact, only a well ventilated room, where corn is seldom kept more than a month or two, and generally in sacks.
2701. A detached granary often forms a part of farmeries on a small scale: they should be built with firmness, and well secured from the entrance of vermin. In order to effect this last purpose, they should be raised, by means of stone pillars, about eighteen inches or two feet, and have a frame of some durable wood, with quarterings of timber, so placed as that they may be filled up closely with brickbats, and the inside made secure by being lined with thin boards nailed firmly to the different pieces of quartering. The floors must be made firm, close, and even: the outside may also be covered with boarding, if it be thought necessary, and the roof well tiled. There may be different floors or stories, ac- cording to the room required.
2702. Of commercial corn granaries, some of the most extensive are in Dantzic. They are seven, eight, or nine stories high, having a funnel in the midst of every floor, to let down the corn from one to another. They are built so securely, that, though every way surrounded with water, the corn contracts no damp, and the vessels have the convenience of coming up to the walls for their lading. The Russians in the interior of the empire preserve their corn in subterranean granaries, of the figure of a sugar-loaf, wide below, and narrow at top: the sides are well-plastered, and the top covered with stones. They are very careful to have the corn well dried before it is laid into these store- houses, and often dry it by means of ovens, their autumn being too short to effect it sufficiently.
2703. A granary to preserve corn for many uears should be a dry cellar, deeply covered with earth; and after the corn is put in, hermetically sealed to exclude heat, air, and moisture, and preclude the possibility of the grain vegetating, or of the existence of insects or vermin.(See 1797.)
2704. The root-house is used for storing up or depositing potatoes, turnips, carrots, cabbages, or other roots or tops for the winter feed of cattle. It should always join the cattle-sheds, and communicate with them by an inner door that opens into the feeder’s walk along the heads of the cattle. The entrance door ought to be so large as to admit a loaded cart. These houses are essentially necessary wherever there is a number of cows or other sorts of cattle to be supported on roots of the carrot, parsnip, turnip, and potatoe kinds, as well as for cabbages, as without them it would not only be inconvenient, but in many cases in severe weather impossible to provide them for the daily supply of such stock. Cabbages should not, however, ever be kept long in houses, as they are very apt to take on the putrid fermentation, and become useless. The master should be careful that the yard-man constantly keeps such places perfectly clean and sweet, in order that the roots may contract no bad smell, as cattle are in many cases extremely nice in their feeding, and when once disgusted with any sort of food, seldom take to it again ina proper manner.
2705. The steaming-house should be placed next the root-houses for obvious reasons; and have an inner door communicating with it in a line with the door of the feeder’s walk.
2706. The straw-house or straw-shed, when there is one distinct from the barn, should be placed at the end of the cattle-sheds, opposite to the root-house, and like it should have a cart entrance, and an inner door communicating with the feeder’s walk. Straw, however, is often stacked, in preference to placing it in a straw-house, especially when jarge quantities of corn are threshed at one time.
2707. Cart-sheds or lodges, for the shelter and protection of carts or waggons, and
sec age othe oo! Upp i admits to0 UC
Pi
up and 3 be apart
oul y 1
not saths, cord
nv Grell in most farm vital stable, es
ies, cheese
dairy farms,
tT e) er or cow-ke
eer ch takes place
oil, A smith lage farm, Instea nents are 1 asaring both of ti le distance fre insurance, The{ larger tools, helon small stock of iro work of ploughs, threshing machin
o-
2712, The du south side, and according to cir the capital requ other members ¢ ple and unost At the same ti in fixing on the s overlook the em and of the ideas ¢ ance of its farms) Who bas travelled district by the form The difference bet are suficientlystrik tute, Which the far the mind, are totally the scattered, stragal Seles farmhouse pets. yen jp tt farmers, ig ? the dwelling.
“HS in Norfolk,
] 6 and QTOss ji
“88 an order g
»
‘1S 18 most
‘loaf, wide|
88 It is dressed
A Ney
i stones, They 1
|;
Store. Houses, and meclently
fe deeply covered
le heat, air, and
he existence of
Imips, carrots,
ilways join the
to the feeder’s
ge as to admit umber of cows ip, al d potatoe yenient, but in supply of such ay are very apt yuld be careful ~ jn order that LV nice in their
it again Ina
ious reasons;
f the feeders
barn, should ike it should ik, Straws ecially when
rH 015, and
Boox IV. FARM-HOUSES. 417
other large implements, are generally built close on three sides, with the fourth open, and the roof supported with posts or pillars. Sometimes they are open on all sides; but this admits too much wind, which carries moisture with it in the cold seasons of the year, and dries up and shrinks wooden articles in summer.‘Their situation in the square should be apart from the buildings for live stock, and also the barn, straw, and root- houses: generally the first part of the east or west side on entering, is devoted to the purpose of cart-sheds and tool-houses.
2708. The tool-house is used for keeping the smaller implements used in manual labor in the fields, as spades, rakes, forks,&c. It is essential that this apartment be dry and free from damps; and when convenient, it should have a loft for the better preserv- ation of sacks, cordage, sowing sheets, baskets, spare harness,&c.
2709. Some other buildings, besides those of this and the preceding section, will be wanted in most farm-yards of any extent, as stables for young horses, riding-horses, an hospital stable,&c. Particular descriptions of farms also require appropriate buildings, as dairies, cheese-rooms, hop kilns, and wool-lofts, which will be considered in treat- ing of dairy farms, hop culture, the management of sheep,&c.
2710. Sleeping-rooms for single men should be made over the stable, and for the feeder or cow-keeper, over the cattle-sheds, that they may hear any accident which takes place among the horses or cattle during the night, and be at hand to remedy it.
2711. A smithy and carpenter's work-room sometimes form part of the buildings on a large farm. Instead of going to a distance to the residence of these necessary mechanics, arrangements are made with them to attend at stated periods or when sent for, by which a saving both of time and money is effected. Sometimes these buildings are set down at a little distance from the square to prevent danger from fire, and lessen the expense of insurance. The fixtures, as the anvil, bellows, bench, vice, lathe,&c. and some of the larger tools, belong to the farmer, but the others the mechanics bring with them. A small stock of iron, steel, and timber, is kept to be in readiness, and also the cast-iron work of ploughs, carts,&c. and sometimes the smaller pinions, and other parts of the threshing machines.
Secr. III. Of the Farmer’s Dwelling-House.
2712. The dwelling-house of the farmer is generally detached from the farmery on the south side, and separated from it by a road, grass-plat, garden, or pond, or all of these, according to circumstances. In size and accommodations it ought to be proportioned to the capital requisite for the farm; that is, it ought to be on a par with the houses of other members of society of similar property and income. In design it ought to be sim- ple and unostentatious; utility and convenience being its recommendatory beauties. At the same time, as observed in the Code of Agriculture,“ every landlord of taste, in fixing on the site and plan of a new farm-house and offices, ought certainly not to overlook the embellishment of the country.”” How much of the beauty of a country, and of the ideas of the comfort and happiness of its inhabitants, depends on the appear- ance of its farm-houses and cottages, every traveller is aware; and every agriculturist who has travelled through the British isles, can recognize at once a well cultivated district by the forms of the farm-yards, and the position of the farmer’s dwelling-house. The difference between the best and worst cultivated English counties in this respect are sufficiently striking; and the ideas of wealth, comfort, order, and scientific agricul- ture, which the farmers and cottages of Northumberland and Berwickshire excite in the mind, are totally unfelt in passing through even Hertfordshire and Essex; where the scattered, straggling hovels of all sizes and shapes, the monstrous barns, and rickety, shapeless farm-houses, indicate a low state of culture, and an ignorant, tasteless set of occupiers. Even in Norfolk and Suffolk, the want of symmetry in the farmeries of opulent farmers, is every where conspicuous, and the want of taste and decorum in setting the dwelling-houses among dung heaps and urine ponds, no less so. But the farmers in Norfolk, as in most parts of England, though wealthy, are in general ignorant and gross in their habits and taste. They are accustomed to look on them- selves as an order of beings different from the trading classes of the community, superior as possessing houses and land, and inferior as not daring to enjoy wealth or better their condition beyond a certain extent, lest the landlord should raise their rent. Till this feeling, which is one among other vestiges of feudal times, and the metayer system, is more or less done away both on the part of the landlord and tenant, no great improvement in farm-houses can be expected.
2713. In selecting a few examples of farm-houses the first we shall notice is that of the smallest size where the farmer keeps no servant and cultivates only a few acres. The ground plan of such a house(fig. 359.) should contain an entry(a); kitchen(6); dairy and pantry(c); parlour(d); light closet off the parlor as a store-reom, or for a
Ee
,,—.: ey; re 3 f 7 r—=. FS
SPT eagle CAE ey—
418 SCIENCE OF AGRICULTURE. Parr II.
bed(e); tool-house(f));_ stair and cellar under(g); water closet, and poultry-house over(h); there are three bed-rooms in
2: A cae‘=,
the roof, and one garret. The dimensions= 360=) é= may be varied at pleasure; but twelve—————————————————— feet square is the least dimension that can Ce be given to the kitchen and parlors, ee ee; eal
oe ee a
2714. A farm-house of the smallest size(fig. 360.), where the poultry and tool house are in the farm-yard, but where the farmer keeps only one servant, and works and lives with him, may contain an entrance and stair‘a); kitchen, closet, and oven(5); back kitchen(c); dairy(d); parlor(e); bedroom(f); with three bedrooms and a garret up stairs, and a cellar under. A few of such farm-houses and tenants should be found in all parts of the country, if for no other reason than to preserve the gradation from the laborer to the professional farmer, and from the cottage to the farm- house.
F Joc IV.
nl 4 furnil fay rater 102 I i) cosets(Cs§ sis(e) beer Ce pels(0) 9“
ant the stalls a! oh fs pig: iyrentty(5 Pls rat, ofa, WU sas two good D olf, A farm Rulandshire, col (}s pantry fh pe lack pat of te eilings only§ ore them, har up from the and wash-OU
sips |
ths brew-hoUse 1S ¢ went t0 feed suo contrivance f0 net vam, It co toons divided into
717, Farmers diplaying appropr! selion, where{arn
Patt II].
M718, Cottages and no improve fortable and con farmer's laborer 1 ness of cottages married servants for their situatio the other buildin changes his habit
2719, The ac two rooms, Th sleeping room of justly deemed to observes, five or six children toom, of 10 or 19 f revolt at consierin, bold al the miserah our shame he it p lhorers or thir fan Uke our fature fema wretched habitations on agioulure, tn the| Me, a| ae AIMED, With fire OLouse, hp apa
ste, "gS of coms
“Coandation, we mh = 0 tio COttages( thy i Dervickshi :‘se in the y Ht that County
m Star Ther te rey "aden behin
Pan
a » and Poultry tn
SS ran oultry and tool howe rvant, and. works aud closet, and oven'b): ree bedrooms and
nd tenants should be
reserve the gradation ttave to the fir
Boox IV. FARM-COTTAGES. 419
2715. A farm-house larger than the preceding(fig. 361.), and for a farmer and his family rather in a better style, may contain a principal entrance: and lobby(a); parlor (6); closets(c); store-room for meal, cheese,&c..(d); lumber room for small imple- ments(e); beer cellar(f); pantry(g); dairy(h); staircase(i); kitchen, with an oven under the stairs, and a boiler on the other side of the fire place(/); coals or wood, and back-entry(/); pig-stye, with a small opening towards the kitchen for throwing in dish- water, offals,&e.(m); and poultry-house(nm); with two garret bedrooms over the wings; two good bedrooms and a closet up stairs, and a garret in the roof.
2716. A farm-house of ihe second lower scale( fig. 362.\, executed at Burleigh in Rutlandshire, contains a principal entry(a); parlor(b); kitchen(c); stair(d); dairy (e); pantry(ff); cellar(g); and cheese-room(h’. The three latter are attached to the back part of the house by a continuation downwards of the same roof. By making their ceilings only seven and a half or eight feet high, some small bed-rooms may be got above them, having a few steps down from the floor of the front rooms, or a few steps up from the first landing-place. The back-door of the kitchen enters into a brew- house and wash-house, the fire place and copper being behind the kitchen vent. Beyond this brew-house is a place for holding fire-wood,&c.; in the back wall of which are openings to feed the swine. In the kitchen is an oven; and below the grate a very good contrivance for baking occasionally, but principally used for keeping the servants’ meat warm. It consists of a cast-iron plate, and door like an oven.‘The chamber- floor is divided into two rooms for wards, and two small ones backwards.
2717. Farmers’ dwelling-houses, containing more accommodation and comfort, and displaying appropriate taste and expression of design, will be found in a succeeding section, where farmeries are treated of, and also where we treat of Jaying out farms.
(Part III.)
Sect. IV. Of Cottages for Farm Servants.
2718. Cottages for laborers ave necessary appendages to every farm or landed estate, and no improvement is found to answer the purpose better than building these on a com- fortable and commodious plan. In the southern counties of the island, where the farmer’s laborer is supposed to change his master once a year, or oftener, the whole busi- ness of cottages is commonly left to accident; but in the north a certain number of married servants are kept on every farm, and a fixed place near the farmery is appointed for their situation. These habitations are in the tenure of the farmer, in common with the other buildings of the farm; and whenever a married servant changes his master he changes his habitation.
2719. The accommodation formerly considered suited for farm laborers, consisted of two rooms. That on the ground floor not being less than twelve feet square, with a sleeping room of the same size over, and sometimes on the same floor. But this is justly deemed too small for an ordinary laborer’s family.‘ Humanity,’ Beatson observes,‘‘ shudders at the idea of an industrious laborer, with a wife, and perhaps five or six children, being obliged to live, or rather exist, in a wretched, damp, gloomy room, of 10 or 12 feet square, and that room without a floor; but common decency must revolt at considering, that over this wretched apartment there is only one chamber, to hold all the miserable beds of this miserable family. And yet instances of this kind, to our shame be it spoken, occur in every country village. How can we expect our laborers or their families to be healthy, or that their daughters, from whom we are to take our future female domestics, should be cleanly, modest, or even decent, in such wretched habitations?”’
2720. Cottages for farm servants, it is observed by the able author of the article Agriculture, in the Supplement to the Encyc. Britannica,‘‘ are usually set down ina line, at not an inconvenient distance from the farm-yard. Each of them contains two apartments, with fire-places and garret sleeping rooms over, Adjoining is commonly a cow-house, hog-stye, shed for fuel, necessary, a small garden, and sometimes other appendages of comfort and enjoyment. As an example of the minimum of modern accommodation, wemay@ refer to two cottages on fi a farm in Berwickshire,'—., as described in the re-||#| port of that county.|req|j77™ oe mom They contain each a kit- alt
363
chen( fig. 363 a.) small i a
parlor and store-room 9g IL 6b
(6), with two good bed- Sinks Lite
rooms over, and a dairy a
under the staircase.—
There is a garden behind: Ever?
NE pe 5 ar ae
Aas SCIENCE OF AGRICULTURE. Parr IT.
(c), a place for a calf or pigs, or for fuel(d), water-closet(e), and dung-heap(f). The laborer’s cows, in this case, are kept at the farmery along with those of the farmer. 2721. A double ploughman’s cottage and cow-house( fig. 364.) may be thus arranged. Both may containa kitchen(a) with an oven, and there may be a small parlor or store-room (b), a dairy and pantry(c), with two bed-rooms over. g Detached may be a pig-stye (d), water-closet(e), place JE
|! 9
| —— d
Pp il took el’
for fuel( f), and cow-house (g), with gardens adjoining,
dung-heap, porch, step-up, Oo 52% i“ i a x &c. as in the other place.= z=
2722, In regard to the construction of cottages much information may be obtained from a work entitled, 4 Series of Plans for Cottages, by J. Wood, of Bath. This author lays down the fol- lowing seven principles, as
Lies fo
sa of obviating the jnconveniencies to whicli cottages, as usually built, are lable:—‘:
09 2723
- The cottage should be dry and healthy; this is effected by keeping the floor sixteen or eighteen inches above the natural ground; by building it clear of banks, on an open spot of ground, that has a declivity or fall from the building; by having the rooms not less than eight feet high—a height that will keep them airy and healthy; and by avoiding having chambers in the roof.‘
2724. They should be warm, cheerful, and comfortable. In order to attain these points, the walls should be of a sufficient thickness(if of stone, not less than sixteen inches; if of brick, at least a brick and a half) to keep out the cold of the winter, or the excessive heat of the summer. The entrance should be screened, that the room, on opening the door, may not be exposed to the open air; the rooms should receive their light from the east or the south, or from any point betwixt the east and the south; for, if they receive their light from the north, they will be cold and cheerless; if from the west, they will be’ so heated by the summer’s afternoon sun, as to become comfortless to the poor laborer, after a hard day’s work; whereas, on the contrary, receiving the light from the east or the south, they will be always warm and cheerful. So like the feelings of men in a higher sphere are those of the poor cottager, that if his habitation be warm, cheerful, and comfortable, he will return to it with gladness, and abide in it with pleasure,
2725. They should be rendered convenient, by having a porch or shed, to screen the entrance, and to hold the laborer’s tools; by having a shed to serve as a pantry, and store-place for fuel; by having a privy for cleanliness and decency’s sake; by a proper disposition of the windows, doors, and chimneys; by having the stairs, where there is an upper floor, not less than three feet wide, the rise or height not more than eight inches, and the tread or breadth not less than nine inches; and, lastly, by proportioning the size of the cottage to the family that is to inhabit it; there should be one lodging-room for the parents, another for the female, and a third for the male children; it is melancholy, he says, to see a man and his wife, and sometimes half a dozen children, crowded together in the same room, nay, often in the same bed; the horror is still heightened, and the inconveniency increased, at the time the woman is in child- bed, or in case of illness, or of death; indeed, whilst the children are young under nine years of age, there is not that offence to decency, if they sleep inthe same room with their parents, or if the boys and girls sleep together, but after that age they should be kept apart. i
2726. Cottages should not be more than twelve feet wide in the clear, that being the greatest width that it would be prudent to venture the rafters of the roof, with the collar-pieces only, without danger of spreading the walls; and by using collar-pieces, there can be fifteen inches in height of the roof thrown into the upper chambers, which will render dormer-windows useless.
2727. Cottages should be always built in pairs, either at a little distance from one another, or close ad- joining, so as to appear one building, that the inhabitants may be of assistance to each other, in case of sickness or any other accident.
2728. For economy, cottages should be built strong, and with the best of materials, and these materials well put together; the mortar must be well tempered and mixed, and lime not spared; hollow walls bring on decay, and harbour vermin; and bad sappy timber soon reduces the cottage to a ruinous state.
Although cottages need not be fine, yet they should be regular; regularity will render them ornaments to the country, instead of their being, as at present, disagreeable objects.
2729. A piece of ground should be allotted to every cottage, proportionable to its size; the cottage should be built in the vicinity of a spring of water—a circumstance to be attendedto; and if there be no spring, let there be a well.
2730. On the foregoing seven principles, he recommends all cottages to be built. They may be divided into four classes or degrees: first, cottages with one room; secondly, cottages with two rooms; thirdly, cottages with three rooms; and, fourthly, cottages with four rooms; plans of each of which, that have great merit in their dis- tribution, may be seen in his very able work.
2731. An economical mode of constructing the walls of brick-built cottages, is described by Dearn, in a Tract on Hollow Walls(London, 1820). These walls are only nine inches wide, and built hollow, by laying the courses alternately lengthways on edge, and crossways on the broad face. Another description of hollow walls has been invented by Silverlock of Chichester, and used by him in building garden walls(See Encyc. of Gardening), in which all the bricks are laid on edge, but alternately length- ways and crossways of the wall; or, in bricklayers’ language, header and stretcher.
pac
rier of these houses t
the sal Iti
ft foot are 0
or than Se
and a half, every time mthe comm floor above, Tiswill be of co room, and will of natage of being nomen and youn: 9793, Mud w Beatson, Crocke these we conside for our climate 2 9734, Of wh isa beauty of it ance of conven! contriver as dis picturesque for ornamental cott fortable habitati This is in the y cottages into ri be considered as
9795,
4ldd A$ an
mented mit 4 specimen i land, Tt contain stat(a), kitchen( Toou(¢), cow-hoy ty(7), and wat kitchen is a bedero
anotier communies
Pay I]
, 9
» and dung, h the se Of the Y Dethusarra
fame
ig hy
reen the entrance, a
», the ris
tly, by proport
é the woman is in¢ inder nine years ot a rents, or if the boys
without danger it of the roof thror
her, or close each other, in case!
brin
all] 18 DD;
ni hollow wai a ruinous slal them ornaments!
enider
re; the cottage shout . and if there be 0!
ttages to be built with one 100! and, fourth} » their ds
mS 5 merit 1 ‘aces, is describe alls are only nit on edi
tages,
othways y walls has bee! “garden walls( al 7 Jengti alternately é vader and stretch
Boox IV. FARM-COTTAGES. Either of these modes suit very well for cottages of one story, and if well plastered inside the house, they will be warmer and dryer than solid walls even of fourteen inches thickness. Hollow walls of any height may be built by laying the bricks flat ways, and joining the outer and inner four inch, or single brick walls, by cross bricks at moderate distances.
2732. An economical mode of forming staircases to cottages, is de- scribed by Beatson, and has been adopted in a few places. Its merit consists in occupying exactly half the room which is required for| stairs on the ordinary plan.‘This is effected by dividing every step into|- two parts(fig. 365 a and b), and making one part double the height of another. In ascending such a stair the left foot is set on the left step(a), and the right foot on the right step(d,) alternately to the top of the stair. It is therefore clear, that as the steps for the right and for the left foot are in the same line, and although neither foot rises each time higher than seven inches and a half above the other, yet every time that one foot is moved, it rises fifteen inches higher than it was before. Suppose in a stair of this kind, that each tread or breadth for the foot is nine inches, and that each rise of the one foot above the other is seven inches and a half, consequently as each foot rises the height of two steps, or fifteen inches, every time it is moved, it is plain that six steps of this kind will rise as high as twelve in the common way, and will require only one half the size of a hatch or opening in the floor above, that would be required for those twelve steps as usually constructed. This will be of considerable advantage, where much is required to be made of little room, and will of course give more space to the chambers above; but it has the disad- vantage of being disagreeable, and even dangerous to descend, especially for pregnant women and young children.
2733. Mud walls, built in the French manner, or en pisé, are recommended by Beatson, Crocker, and‘others, and also:‘“ walls composed of soft mire and straw,” but these we consider, with Wood, as the reverse of economical in the end, and totally unfit for our climate and degree of civilization.
2734. Of what are called ornamental cottages for laborers, we shall say little. Utility is a beauty of itself, but there are higher degrees of that sentiment excited by the appear- ance of convenience and abundance; by the evidence of design or intelligence in the contriver as displayed in the elevation and general effect, and by classical imitative or picturesque forms in the masses and details. The great evil, however, is that these ornamental cottages, as generally constructed, are felt by the occupiers to be very uncom- fortable habitations, every thing being sacrificed by the designer to external appearance. This is in the very worst taste, and has, in most parts of the country, brought ornamental cottages into ridicule. Utility, therefore, is the main consideration, and nothing ought to be considered as ornamental that is at all at variance with this property.
2735. As an example of a cottage orna- mented in the least degree(fig. 366.) we sub- mit a specimen in the gothic style, by Hol- land. It contains an entrance lobby, and stair(a), kitchen(6), small parlour and store- room(c), cow-house(d), pig-stye(e), poul- try(f), and water closet(g). Over the kitchen is a bed-room with a fire place, and another communicating with it over the cow-house,
2736. A cottage ornamented in the second degree(fig: 367.), contains an entrance and
IN lobby(a), kitchen(4), stair(c), parlor,
or store-room(d), back kitchen(e), cow- &
house(f), and water closet(g), with two good bed rooms over the centre of the building, and two garrets over the wings.
2737. A double ornamental cottage, erected by Lord Penryhn, in Wales (fig. 368.), contains a porch, lobby, and stair(a), kitchen and living room(6), parlor(c), with cellars and pantry under, and to each house two bed-rooms over. It must be confessed, however, that this cottage is more ornamental than convenient.; pe
2738. A double ornamental cottage, with latticed windows(fig. 369.) 5. built in Hert- fordshire, on a very dry soil, contains, on the ground floor, the kitchen and living room(a), pantry(b), and small light closets(c), with a stair up to two good bed-rooms above and down to a dairy, cellar, fuel-room, and other conveniences beneath. It is placed in a
Ee 3
ee a
ERIE OTe ennprnctisieniomenns
ee
pia tis mee SS ea
SATU RES
499 SCIENCE OF AGRICULTURE. Part II.
ak
neat garden, with piggery, bee-house, poultry, dung-pit, water closet, covered seat or lower pump-well, and other appendages to each cottage.
59. A variety of other plans of cottages will be found connected with the plans of Pe and in our Topography of Agriculture(Part IV.)
Sect. V. Of the Stack-yard, Dung-yard, and other Enclosures immediately connected with Farm Buildings.
2740. The different appendages which are common to farm buildings are the dung-yards, pits and reservoirs, the rick-yard, the straw-yard, the poultry-yard, drying yard, garden, orchard, and cottage-yards.‘These necessarily vary much, according to situation and other circumstances, but all of them are more or less essential to a complete farmery.
2741. The dung-yard and pit is placed in almost every case in the centre of the main yard. A pavement, or causeway, ought to be carried round the j vard, next to the houses, of nine or fifteen feet in width, according to the scale of the whole: the remaining part of the yard should either be enclosed with a wall with various doors to admit cattle, carts, and wheel barrows, or on a small scale, it may be entirely open. From this space the ezrth should be excavated so as to form a holiow deepest at the centre, or at the lower end if the original surface was not level; and from the lowest part of this hollow should be conducted a drain to a reservoir for liquid manure. The bottom of this excavation, or dung-basin, ought to be rendered hard, in order not to take the impression of cart wheels, in removing the dung, and impervious to moisture, in order to prevent absorption.
2742. For these purposes, it may be either paved, the stones being set on a layer of
clay; or what will generally answer equally well, it may be covered with a thick coat of gravel or chalk, if it can be got, and then well-rolled, mixing some loam with the gravel, if it is found not to consolidate readily. To prevent as much as possible a superfluity of rain-water from mixing with the dung and diluting its drainings, all ex-
ternal surface-water should be prevented from entering the farm-yard by means of
drains, opened or covered; and that which collects on the inner Toes of the roofs should, in every case, be carried off by gutters. Such is the opinion of most agricul- turists as to the situation of the farm yard, dung-hill, and reservoir; but, in addition to these requisites, it is now very properly considered as equally important that there be urine-pits, either open or covered.
2743. The urinarium, or urine-pit, is constructed in or near to the stables and cattle-sheds, for the immediate reception of the drainage of these buildings, un- mixed with rain-water. It is found from experience that a very considerable addition of the richest kind of manure is thus obtained on every arable farm. At the same time it is proper to observe, that no benefit, but a loss, will be sustained if the urine is so com- pletely drained from the straw, as to leave it too dry for fermentation. Where there are no stall-fed cattle, an able author(Supp. En. Brit. i. 121.) is of opinion there will be no more urine than what wi!l be required for converting the straw into manure. When
has been form
into regular rc side of every d the whole yan This plan 1S
i Is
a greater degre
move any stack
require; 1
$i] (~ fs a a
loset, covered Seat or
eq with the plans of
rien plete farmery,
> centre of the man , next to the houses, 2 e remaining pur
Imit cattle, ca rom this space tle re, or at the Jower this hollow should this excavation, ipression of cart revent absorption,
set on a layer of with a thick coat me loam with the
[ )
auch as possible 4 drainings, all ex ard by means of lopes of th he ro0!s of most agricul but, in addition tant that there be
the stables and
puildings, ul Jerable ad{dition . the same time srine Is Vhere there are on there vill be yanure. V het
so com-
Boox IV. STACK-STANDS. 423
cattle are fed at the stake, however, he considers a reservoir as essential. Allan, of Graycrook, near Edinburgh, recommends that there should be two, insorder that as soon as one is full, it should remain in that state till the urine becomes putrid before it be taken away.‘The urine is either applied to the land in its liquid state, or mixed with peat, earth,&c. The reservoirs may be either vaults of masonry, or wells: in either case, the hole for the pump should be sufficiently large to admit a man to clean out the sediment when it accumulates. A very desirable plan seems to be, to have these vaults, or wells, chiefly within the cattle-house, as in Flanders, but partly also without, to admit room for the pump-hole, close by the wall on the inside of the surrounding paved road. It is needless to add, that such constructions ought to be made water-tight by the use of some cement, or by puddling with clay outside of the masonry.
2744. The stack-yard, or enclosure within which corn, hay,&c. is stacked, is placed exterior to that side of the building which contains the barn. Stack-yards should always be sufficiently spacious and airy, having a firm dry bottom; and some advise them to be ridged up, to prevent the accumulation of surface-water, as by the ridges being pretty well raised in the middle, and covering the places where the stacks are to be built, either with rough stones, with a mixture of gravel, or paving them in the same manner as streets, much advantage would be gained at little expense. But a much better method is to have them raised considerably above the surface, and placed upon pillars of wood or stone, with a covering of wood round the circumference, and beams laid across. The inclosing of stack-yards should be well performed, either by means of walls or palings, or better with a sunk fence; as in that way the stacks will have the full benefit of the air from top to bottom, a circumstance of no small moment, as it is often found, especially in wet seasons, where the fence of the stack-yards is only a low wall, that the whole of the stacks are damaged or spoiled as high up as the wall reaches, while the upper part is perfectly safe. Should any addition be required to the sunk-fence, a railing upon the top may be quite sufficient. This fully shows the vast advantage of having stack-yards sufficiently airy. The proper arrangement of the stands, for their pene removed to the threshing-mill, is also a matter of much conse- quence in the economy of the work that is to be: mee med in them.
2745. A stack-yard, arranged on principles peculiarly well planned and judicious, has been formed by Mitchell, of Balquharn, near Alloa. His stacks are divided into regular rows, and there is a road on each== side of every double row, besides a road round the whole yard.(See our fig. 114. and 115.)
This plan is attended with the following eos
antages; Ist, by these parallel roads, fier e is a greater degree of ventilation; 2dly, he can re- move any stack he pleases, as necessity or markets require; 3dly, in the hurry of harvest there is no confusion or loss of time, whatever may be the number of men or horses employed; and 4thly, by having the rows and the stacks regularly numbered, there is no difficulty in ascertaining what each field of the farm produces.
2746. Corn-stands are requisite fixtures of the stack-yard: they are basements of timber or ma- sonry,and sometimes of iron( fig. 370a.), on which to build the stack, and their object is to keep the->——— T1 rE lower part of the rT dry, and exclude vermin. 7 The usual mode of constructing stands is to place a stout frame of timber on upright stones, two Lk pall it Il feet high, and having projecting caps of flat stones. They are also Nconstinered wholly of stone, of circular or polygonal walls(fig. 371 a,b), built to the same height as in the for-
370
371 ix mer case, in a rather slanting manner out-
———— nas s.. =~ J NS—\ wards, and covered on the tops with copings /> Y ry;\:\of oak-planking or flat stones, which project
|jover the edges several inches, and in that }iway prevent the ascent of rats and mice a to the stacks. In both these modes, pieces Se of timber are placed as a frame in the middle to support the grain upon, and generally a cone of spars in the centre, to form a column of air in the heart of the corn. Some suppose the first of these sorts of corn-stands to be the best for general purposes, as being more easily as well as more cheaply con- structed, and at‘the same time permitting the ef to enter and circulate with more freedom Ke
494 SCIENCE OF AGRICULTURE. Parr IT.
underneath, in the bottem of the stand, which is of much advantage. It is obvious that the form of these stands or basements must vary according to that in which the stacks are to be made, which is different in different districts. But wherever the threshing machine is introduced, the circular base, as producing a stack of a moderate size, with other ad. vantages, is generally preferred.
2747. Cast-won stands for stacks( fig. 372.) with or without funnels formed by hollow cones or triangles, have recently been introduced, and found advantageous in point of economy, and admitting of stacking the corn, somewhat earlier, The pillars of these stands are three feet high, and weigh one-half cwt. each. A stack re- quires seven pillars, besides the framing, which may either be made of poles or young trees. In the wet climate of Clackmannanshire, wheat has been stacked in five days, beans in eight, and barley and oats in ten days, and some- times earlier. No vermin can find their way into these stacks to consume the grain, and the straw is better pre- served. The cone or triangle keeps up a circulation of air, and prevents heating, or other damage.(Gen. Rep. of Scotland, vol. iv. App. p. 379.)
2748. Hay-stands, according to some, may be formed in the same manner as those for corn, only it is se such expensive materials.)
=) that of the house and farm; but as a small farmer with a large family will require as many or more vegetables than one of a higher class, there can be no impropriety in the garden being large. As potatoes and turnips, and sometimes other vegetables, may be had of better quality from the field, some abatement of size may be allowed on this account. In general, the garden need not be under a fourth; nor exceed half an acre. The best fence is a wall, and next a close oak paling; but if neither of these can be had, a thorn hedge will answer, though its roots always rob a portion of the accompanying border, and it harbours vermin.|The best form is a parallelogram, lying east and west,
Pad
anny it wit ou Yide An orolt at gattered( jac iat ration
tht get
I
yessth of an fl gurtound ce belovg shese com houses) the
placed pehind the
soul cow hou:
ger Ve Of!
mst, In fir bat tobe t duce of the 1ar0 that will be neces secondly, a barn 4 threshing nill glace it$0 that sans of Which 1 fam; fourthly, cows and cattle fixed upon. Hi the ground Tau levels must. b and. carrying urine-pits, OF houses and st as possible,) should be co will easily be work to be form that wo sufficiently e to be conside litter to the part perhaps house should| make a part of on; whether by ot by having a thrown in at ko the dung must reservar, The other offices or be occupied(up pend), any persc lay down his id commodious set Tat, that, SOme points of Je unless the o it should not in station tor the Peésing uniform: ‘Mt agreeable,—] "Sy to have th "er being con \ ul Overlooked, “ii8, The Dart “Ubtentions of : Under mixed i of yards a
aU
Halied across{ fz,$])
;; ards more particuid!
out the farm-yard, 1 nelosure occupies th ision of the yard; farm-yard, and neat bis description, cattle in severe
o to their position,
ure, as the poultry of nost parts of the
cmith’s aud
I
I injured by the
ond somewhat 02 ily will require# “propriety in the
tables, may be 4 Jowed on this ved half an acte. hese can be had, > gccompany ing cand we,
g eas
Boox IV. FARMERIES. 425 which may be intersected by walks, so as to divide it into four or six other parallelograms, with a surrounding border as broad as the enclosure fence is high.
2755. An orchard may either be regularly formed on an allotted space; or fruit trees may be scattered over a lawn or piece of grass ground which may surround the house. In a convenient part of this orchard, posts should be fixed as a drying ground, unless that operation is performed by heated air or steam in the house.
2756. The gardens appended to the laborer’s cottages may contain from one-eighth to one-sixth of an acre.‘Their situation should always adjoin the house, but whether they should surround it or enclose it on one or more sides, must depend on the position of the cow-house belonging to each cottage. In some cases, and perhaps it is the best plan, these cow-houses form a range by themselves in a small field devoted to their use, and placed behind the row of cottages.
Secr. VI. Of the Unionof the different Farm Buildings and Enclosures in a Farmerye
2757. In fixing the arrangement of a set of farm buildings, the first thing, according to Beatson, to be taken into consideration, after choosing the situation, is the nature and pro- duce of the farm. From these may be judged the different kinds of accommodation that will be necessary. For example, every farm must have, first, a dwelling-house; secondly, a barn suitable to the extent of arable land in the farm, either with or without a threshing mill, but always with one, if possible; and it should be endeavored to place it so that it may go by water, if a supply can be had; thirdly, stables, the dimen- sions of which must be determined according to the number of horses necessary for the farm; fourthly, cow-houses, or feeding-houses, or both, according to the number of cows and cattle, and so on, till the whole accommodations, and their dimensions, are fixed upon. Having ascertained these, and the situation for building on being also settled, the ground must be carefully and attentively viewed; and if not very even, the different levels must be observed, and the best way of conducting all the necessary drains, and carrying off all superfluous moisture. Also the best situation for dung and urine-pits, or reservoirs, which will, in a great degree, ascertain at once where the cattle- houses and stables should be. These being fixed on, the barn should be as near them as possible, for the convenience of carrying straw to the cattle; and the barn-yard should be contiguous to the barn, These main points being determined on, the others will easily be found; always observing this rule, to consider what is the nature of the work to be done about each office, and then the easiest and least laborious way to per- form that work, so far as it is connected with other offices. In case this should not be sufficiently explicit, suppose, by way of illustration, the situation of a feeding-house is to be considered of. The nature of the work to be performed here is, bringing food and litter to the cattle, and taking away their dung. The place from whence the greatest part perhaps of their food and all their litter comes, is the barn; therefore the feeding- house should be as near the barn as possible. If turnips or other roots, or cabbages, make a part of their food, the rhost commodious way of giving these must be determined. on; whether by having a root-house adjoining.the cattle-house, and that filled occasionally, or by having a place to lay them down in, near the heads of the stall, from whence they are thrown in at holes left in the walls for that purpose. The easiest method of clearing away the dung must also be considered, and the distance from the main dung-pit and urine reservoir. The same general rule being observed in determining on the site of all the other offices or accommodations, together with a careful examination of the ground to be occupied(upon which the arrangement of the offices in a great measure should de- pend), any person conversant in rural affairs, who attends to these particulars, and can lay down his ideas in a drawing, may easily direct the planning and building of a very commodious set of offices. With respect to the site of the dwelling-house, it may be remarked, that, although a house being situate in the middle of a regular front, is in some points of view the most pleasing way, and in many situations perhaps the best, yet, unless the ground and other circumstances in every respect favor such a disposition, it should not invariably be adhered to; for it may often happen, that a much better situation for the dwelling-house may be obtained at a little distance from the offices, a pleasing uniformity be observed in them at the same time, and the house be more healthy and agreeable. In some cases, and for some kinds of farms, it may be particularly ne- cessary to have the house so placed, in respect to the offices and farm-yard, as to admit of their being constantly inspected, and the labor that is to be performed in them attended to and overlooked.
2758. The particular requisites of a farmstead, Marshall observes,‘* are as various as the intentions of farms. A sheep-farm, a grazing-farm, a hay-farm, a dairy~farm, and one under mixed cultivation, may require different situations, and different arrange- ments of yards and buildings. On a farm of the last species, which may be considered.
426
SCIENCE OF AGRICULTURE. Parr II.
as the ordinary farm of this kingdom, the principal requisites are, shelter, water, an area or site sufficiently flat for yards and buildings; with meadow land below it, to re. ceive the washings of the yards; as well as sound pasture-grounds above it for a grass- yard and paddocks; with private roads nearly on a level, to the principal arable lands; and with suitable outlets to the nearest or best markets.” The first of which when wanting, in the desired situation, may in time be supplied by plantations and mound- fences. And where there is not a natural supply of water, a well, water-cellar, or ficial rill may, he says, furnish it.
2759. For a farm under mixed husbandry, the particulars, to be arranged according to Marshall, may be thus enumerated; namely, 1. A suit of buildings, adapted to the intended plan of management,—as a dwelling-house, barns, stables, cattle-sheds, cart- shed. 2. A spacious yard, common to the buildings, and containing a receptacle of stall-manure, whether arising“from stables, cattle-sheds, hog-styes, or other buildings; together with separate folds, or straw-yards, furnished with appropriate sheds, for par- ticular stock, in places where such are required. 3. A reservoir, or catchpool, situated on the lower side of the buildings and yards, to receive their washings, and collect them in a body for the purpose of irrigating the lands below them. 4, A corn-yard, conye- nient to the barns; and a hay-yard contiguous to the cow or fatting-sheds. 5. A gar- J 6. A Spacious grass-yard or green, embracing
arti-
len and fruit-ground near the house. the whole or principal part of the conveniences; as an occasional receptacle for stock of every kind; as a common pasture for swine, and a range for poultry; as a security to the fields from stock straying out of the inner yards; and as an ante-field or lobby, out of which the home-grounds and driftways may be conveniently entered. In re- spect to the distribution or management of these different objects, he remarks, that in order to make it with good effect, great caution, study, and patience are required, that the most may be made of given circumstances,“ An accurate delineation of the site which is fixed on, requires,” says he,“ to be drawn out on a scale; ing the subject, alternately, upon the paper, and on the ground to be| to sketch and correct his plan, until he has not a doubt left upon his mind; and then to mark out the whole upon the ground, in a conspicuous and permanent manner, before the foundation of any particular building be attempted to be laid. It may,” he thinks, ““be naturally conceived by a person who has not turned his attention to this subject, that there must be some simple, obvious, and fixed plan to proceed upon. But seeing the endless variety in the mere dwelling-places of men, it is not to be wondered at, if a still greater variety of plans should take place where so many appurtenances are required, and these on sites so infinitely various; nor that men’s opinions and practices should differ so much on the subject, that on a given site, no two practical men, it is more than probable, would make the same arrangement.”? There are, however, he says,“ certain principles which no artist ought to lose sight of in laying out” such buildings and con- veniences.‘¢ The barns, the stables, and the granary, should be under the eye,— should be readily seen from the dwelling-house.” And«the prevailing idea, at pre- sent, is, that the several buildings ought to form a regular figure, and enclose an area or farm-yard, either as a fold for loose cattle, or, where the stalling of cattle is practised, as a receptacle for dung, and the most prevailing figure is the square. But this form is, he thinks, more defective than the oval or circle, the angles being too sharp, and the corners too deep. Besides, the roadway, necessary to be carried round a farm-yard in order to have a free and easy passage between the different buildings, is inconveniently lengthened or made at greater expense. The view of the whole yard and buildings
the plannist study- aid out; continuing
from the house on one side of it, is likewise more confined.”” He had formerly sug~
gested the plan of a polygon, or many- Eee a haa
sided figure, or an irregular semi-octagon, as las! laegW®
with the dwelling-house and stables on the JCS We / LT ae eas
largest side, having ranges of cattle-stalls opposite. But has since formed one on the complete octagon(fig. 373.), the dwelling-house(a) being on one side, and the entrance gateway and granary oppo- site, the remaining six sides being occu- pied by stables and catile-sheds(c,d), and other out-buildings(e), a barn and thresh-| ing machine(f), with a broad-way(g), dipping gently from the buildings, and surrounding a wide shallow dung-bason(h', which cecupy the rest of the area of the yard. Externally is a bason(:), for the drainings of the yard: and grass enclosures for calves
’ Ko} 5 J? te)> poultry, and fruit-trees, and rick-yard. This is given as a hint to those engaged in lay.
Mm
Pook 1V.
out and dr agp of the site “60. An exalt j se by ie ithe bara 2) squation at the or ay, that it! he upper Pat 9 nist of pillars with, about eigh tem, wterby 8 will be saved. hatches at cone down the straw t nut fr the du it from the feed entry at the athe ike avay the du iisshould be 3 convenient place of the ground‘ door also to the yet(¢) with a1 caves, even th opel, acon; harness-ro0m,| corm(f')5 a or over the ba shed for carts large implem i); for keep spades, shov things that m feet(l); wh deepest, that vail at each| pump, with frozen, or W water which at all times Beatson rem
ward from ¢
Pon
re Wate ay Delow It b
. 0 te, VElt for g:
Anged acconting Adapted typ ttle-sheds cart 4 receptacle of
sheds, for ar poo, Situated nd collect ther Deyard, conye. SA guts €D, embracing cle for Stock i S 4 security fp ield or lobby ered, In pp. marks, that jy required, that On of the site lannist study. continuing ; and then tp anner, before y” he thinks, this subject, But seeing ered at, if a are required, tices should is more than s, certain os and con- the eye,= 2a, at pre. se an area practised, s form is, _ and the n-yard in ventently puildings erly sug- areal | |
| onguad| 1A HO)
gouguo
‘glves, n lay-
Book IV. FARMERIES. 427
ing out and directing buildings of this sort, which they may adapt to the particular na- ture of the site or situation of such erections.
2760. An example of the arrangement of a small farm-house and offices(fig. 374.), is given by Beatson, which he considers as very convenient. At the north-west corner is the barn(a), with a water threshing-mill; a straw-house(4); being a con- tinuation of the barn above, for holding a quantity of straw after it is threshed, or hay, that it may be at hand to give to the cattle in the feeding-house below.
will be saved. In the floor should be
hatches, at convenient distances, to put—= down the straw to the cattle below. A U
court for the dung-hill(c) has a door to, b T ¢ i it from the feeding-house, and a large~ coo, JL, i| \
entry at the other end to admit carts to a
The upper part of this straw-house may=
consist of pillars to support the roof, Shy y==
with about eight feet space between_~ ONG Tee Ghent
them, whereby a good deal of building;O O a| tla js OO
take away the dung: on the outside of this should be a urine-pit, in the most convenient place, according to the form of the ground; a cow-house(d), has a door also to the dung-court; and a calf- pen(e), with a rail across to keep in the calves, even though the doors are all open, adjoins; there is a stable, with a harness-room, and a place for: keeping corn(f); a root-house(g), over which, or over the barn, may be a granary; a shed for carts(kh); a place for keeping large implements, as ploughs and harrows (i); for keeping smaller implements, as spades, shovels, rakes, forks,&c. and for laying by old iron and many other useful things that might otherwise be lost or thrown away(); a pond for washing the horses’ feet(J); which slopes down from each extremity towards the middle, where it is deepest, that the horses may easily go in at one end, and come out at the other, with a rail at each end, to prevent them going in during frost, or when not wanted to go; a pump, with a trough for the horses or cattle to drink in, especially while other water is frozen, or when the water in the pond is dirty(m); but if it can be contrived so that the water which drives the mill may run through this pond, it will be preferable as being at all times clean and wholesome. One material advantage of this arrangement, Beatson remarks, is, that the fodder consumed upon the farm goes progressively for- ward from the barn-yard through the cattle houses to the dung-hill, without the
Ea mi li
a
F—— YN———— La Vee rele! a 5 5 aS ri LS... dae: _ fu i(a eal ae IrF4 enone
| aren Tit t H
al ar
a aa ihe Sal fall ol e|[#\[a]ficz =aviesres fi sreemere mPa-(idly
erro Werren mre te terant mT ULC
=
=
498 SCIENCE OF AGRICULTURE. Paarl.
unnecessary labor generally occasioned by carrying it backwards and forwards; for it comes from the barn-yard into the barn, where it is threshed. It is then put in the straw-house, and given to the cattle immediately below; and after passing through them, it is thrown into the dung-court. are in most They are not
» security, mselves, are
Parr II,
pos V.
po edent 10 vk i ros being can ex cys oO nt he dpe ple author ¢
ed, sl fet
wih means: ty the space they{ shecase ith thor any management satel on sia seaward to be: ple barr, 88 wit Frey. Br art guatin, and thet
t] |
‘ j
sng, The em igen on He digostion will d the lands to be Hl come under rev! tm depends on nhether pasture, of the soil; ont og, In det quoted observes alop, we woul which the qual farms, not bel there are divis most profitabl same crop,| equalize labor also, On lar neat the extr posed to be s and straw-yar is much grea crops had bee tion, itis quit distance, and may be consun the cultivation to some of th consequence on to the equalizati annual produce quality of the so rich, and in the the poor land me duce, to the rich 80 fertile, that i or the greater pa cient in tenacity, By connecting t are Wanted for te onthe grou Tormet a5 to be Same plan will tay be taken fron Theat May succee "ateappropit as a elo PMY be ext
JR ty SUecesgig
Py nL Boox IV. FENCES USED IN AGRICULTURE. 431
too evident to require particular notice. And as there are few tracts so rich as to admit
of crops being carried off the land for a succession of years, without the intervention of
green crops consumed where they grow, fences, of some description or other, can very
rarely be dispensed with, even in the most fertile and highly improved districts.” The
same able author complains of the general mismanagement of this branch of husbandry, ‘ by which means fences not only often become comparatively useless, but even injurious
by the space they occupy, and the weeds they shelter. This, he says,‘ is particularly the case with thorn hedges, which are too often planted in soils where they can never, by any management, be expected to become a sufficient fence; and which, even when planted on suitable soils, are in many cases so much neglected when young, as ever afterwards to be a nuisance, instead of being an ornamental, permanent, and impenetra- ble barrier, as with proper training, they might have formed in a few years.(Sup. Encyc. Brit. art. Ag.) Fences may be considered in regard to their emplacement or siuation, and their form or kind.
oe Secr. I. Of the Situation or Emplacement of Fences.
WF es
HW} 2768. The emplacement or disposition of fences on a farm or an estate, will
| S/ depend on the purposes for which they are made. In laying out an estate, their
Bootie) disposition will depend on the natural surface and situation of roads; water-courses; on || the lands to be planted with trees, and on a variety of other considerations which will
| come under review in the succeding part of this work. The situation of fences on a { farm depends on a great variety of circumstances, as the extent of the farm; its climate, WoW whether pasture, or arable, or mixed; on the inequalities of the surface; on the nature yeaa of the soil; on the supply of water, and on the course of husbandry to be followed.
|| 2769. In determining the subdivisions of an arable farm, the excellent author above quoted observes,‘‘ whatever may be the kind of fence which it is thought advisable to H! adopt, we would recommend that particular attention be paid to the course of crops ls|| which the quality of the soil points out as the most advantageous; and that upon all THE le farms, not below a medium size, there should be twice the number of enclosures that =i there are divisions or breaks in the course. Thus, if a six years’ rotation be thought the L most profitable, there should be twelve enclosures, two of which are always under the ims same crop. One very obvious advantage in this arrangement is, that it tends greatly to a ary equalize labor, and, with a little attention, may contribute much to equalize the produce
= also. On large farms, where all the land under turnips and clover, for instance, is near the extremity of the grounds, or at a considerable distance from the buildings, sup- posed to be set down near the centre, it is clear, that the labor of supplying the house and straw-yard stock with these crops, as well as the carriage of the manure to the field, is much greater than if the fields were so arranged, as that the half of each of these crops had been nearer the offices. But by means of two fields for each crop in the rota- tion, it is quite easy to connect together one field near the houses, with another at a distance, and thus to have a supply at hand for the home stock, while the distant crops may be consumed on the ground, The same equalization of labor must be perceived in the cultivation of the corn-fields, and in harvesting the crops. The time lost in travelling to some of the fields, when working by the plough, is of itself a matter of some consequence on large farms. But the advantages of this arrangement are not confined to the equalization and economy of labor; it may also, in a great measure, render the annual produce uniform and equable, notwithstanding a considerable diversity in the quality of the soil. A field of an inferior soil may be connected with one that is naturally rich, and in the consumption of the green crops, as well as in the allowance of manure, the poor land may be gradually brought nearer, in the quantity and quality of its pro- duce, to the rich, without any injury to the latter. Thus a field under turnips may be so fertile, that it would be destructive to the succeeding corn crops to consume the whole or the greater part on the ground; while another may be naturally so poor, or so defi- cient in tenacity, as to make it inexpedient to spare any part for consumption elsewhere. By connecting these two under the same crop,— by carrying from the one what turnips are wanted for the feeding-houses and straw-yards, and eating the whole crop of the other on the ground with sheep, the ensuing crop of corn will not be so luxuriant on the former as to be unproductive, while the latter will seldom fail to yield abundantly. The same plan will also be advantageous in the case of other crops. Hay or green clover may be taken from the richer field, and the poorer one depastured; and on the one wheat may succeed both turnips and clover, while the more gentle crops of barley and oats are appropriated to the less fertile field. These observations are particularly applicable to turnip soils, of such a quality as not to require more than one year’s pasturage, and which are therefore cultivated with corn and green crops alternately; but the same prin- ciple may be extended to clay lands, and such as require to be depastured two or more years in succession.
1 most are not ribute, roduce curity, eg, are
aaieias ee ee ee
eas i
a.
SS
———
ET a RE
ees
432
SCIENCE OF AGRICULTURE.
2770. Where hedges are employed as fences, it is of importance that the ditches be drawn in such a direction as to serve the purposes of drains, and also that they may receive the water from the covered drains that may be required in the fields contiguous,
According as the line of the fence is more or less convenient in this re of draining may be considerably diminished or increased, :: ee Secr. II. Of the different Kinds of Fences. 2771. Fences in regard to kind, may be arranged as live fences,
others; the hedge, the ditch, the wall, and the paling. white or black thorn, of the plum,
flat wet lands requiring much drainage;
almost all cases whatever; and the paling, whether fixed or temporar
Parr II,
spect, the expense
f dead fences, and mixed kinds; but there are four elementary species which are the foundation of
purposes in
y(as of hurdles),
is the most convenient as a nurse-fence to hedges for immediate or temporary use, and
for fencing in parks and scenery, where an air of lightness and freedom are objects of ) 5= 2 From these simple or fundamental fences, a variety of compound ones
approbation. may be formed, a few of which we shall proceed to enumerate.
Suzsect.1. Ditch or Drain Fences.
2772. Ditch fences, in their simple and original state, were considered rather in the light In a variety of instances, ditches are made for
of open drains than as fences,
purpose only, where there is no intention whatever to enclose the field. ever, sometimes meant as a fence,
this They are, how-
but, in such cases, they are made very deep and wide;
and the earth taken out of them is sometimes formed into a bank, the height of which,
when added to the depth of the ditch, forms a tolerable barrier. In
general, however,
the greatest value of the ditch is met with when it is used in conjunction with other
fences,
2773. The form of ditches is various; some of them being of a uniform width both
at top and bottom;
others are wide above, and have a gradual slope downwards; a third kind have one side sloping and the
other perpendicular.
For whatever purpose the ditch is meant, the sloping form is by much the best: as
5)
it not only costs less money in the digging, but is at the same time much more durable, and has a neater
appearance. Where open ditches are indispensably necessary for the drainage of ditch is preferable to every other; vated by the current of the water, when properly executed. not less than three times the width at top that it is at bottom.
the field, the sloping
3 as the sides are not liable to tumble in or be undermined, or exca- Uhe slope should be considerable; perhaps
2774. The open ditch, with a wail or perpendicular sides, is liable to much objection, both in its simple
and compound state: in its simple state the sides are perpetually tumbling in, espe heavy rains, and if the field round which these ditches are made has any considerable is undermined, and large masses tumble down, bringing the hedge along with them.
cially after frosts or declivity, the bottom
2775. The simple ditch, with a bank of earth, consists merely of a ditch sloping gradually towards the
bottom; the earth taken out of it being formed into a bank on one side, leavin
§ a scarcement, or
projecting space, of six or eight inches, on the side where the bank is formed, to prevent the earth from
tumbling in and filling up the ditch.
2776. The double ditch, with a bank between,(fig. 379.) is not often used, unless in cases where it is meant either to plant hedges or trees on the bank between the ditches. Considered as a fence, either with or without a hedge, it has an advantage over the single ditch, as the earth taken out of the two ditches, when properly laid up, will form a bank of a somewhat formidable appearance, and which cattle will not very readily attempt to break over. For
the purposes of open drainage, it is well adapted, especially by the sides of highways, where the lands have
a considerable declivity towards the road:
vents it from overflowing and washing the road, a circumstance which very frequently happens in such situations; while the ditch on the side next the road, by receiving and carrying off the moisture that
falls upon, and which would otherwise lodge there and destroy it, repair. Where double ditches are made in the immediate vicinity of high grounds, or
a straight line into the ditch, it presses with
accelerated force against the sides of it; and if the soil is of a loose incoherent nature, the bank will be
undermined and washed away in many places.
To prevent this, nothing more is requisite than to alter
the direction of the furrows, or small side-ditches, a few yards from their Opening into the main ditch.
fence, and in some situations extremely useful; in making folds,
for instance, for sheep or cattle. It is also valuable on the sides of highways,
The bank of earth, with an upright facing of turves, and a slope behind, is’ very common sort of
the confinement of
for defending the adjoining grounds, and for
laying off clumps or belts of planting in the middle or corners of arable fields, for enclosing stack-yards,
cottages, gardens,&c.
The front of the bank is made of a very steep slope, with the turf pared off from
the surface of the sloping ditch, and the mound at the back with the earth taken out of it,
2778. The ha-ha, or sunk Jence, is calculated chiefly for fields that require no shelter, and where an uniform unbroken prospect is an object, as is the case in gardens and extensive lawns: but in all situations where shelter is wanted, the sunk- fence ought to be avoided, unless a hedge is planted upon the top of it. Sometimes a medium between the sunk and raised fence(fig. 380.) is adopted, which makes both a durable and} unobtrusive barrier,
eee
380
2779. The double ditch and hedge upon what are termed cold lands;
is now general in many parts of Britain, especially from an idea, that a single row of plants would not
all the The hedge, when formed of the or crab, or of the holly, is the cheapest ble, and the handsomest of all fences on a good deep soil: the ditch is the best on low the wall is the best for farming
» most dura-
Shox IV.
ni cuficiently m at In
f i" gerlegy sporty Oe
Sm
\ INA | 1
af bedge:: tis spa
vn g farm of 600
pve forty acres.
nent, HOt only ot bho ich, from!
cute, whl mon surface, not ht exposes them£0 ns of plants. maki
necessary waste Of ne properly adapted
iat, if it should be wel witha single dit
fene orsuch as are forme 81, Dead hedg tes, or the tops of uutdown; and are f suth as the protecti sulicient degree ¢ any other assistanc 4s to enable the| however, dead he¢ tion of planting qi they are found to second. year, they part of the value the protection of face, the dead hed a8 to prevent the s the quick fence, ho Most part made on these are called 1
080, Hedge-
Which they consis plan, in opposition a8 the dead hedge y together atthe to Wi 189, Ih
to hive| j and for th Ned, The suog es being suited * tht ge ofthe plants TRUS, pruning’ and a 9709 I 183, The Proper ¢| *Patt of the busines great labor and 1 MANY Years care *‘O situations, ey aN In ine 4 short time y Nh
MS Ought, there
5; the three fst
ti ous t the"Tene
dead Fences au Indation of al : aN{he Then formed gf th Teapest, mog dug. IS the best pn low
Ming|
DUMpOses jy *PYSSS I
Mare objects ot Compound
the lands have | that side, pre- 3 in such
y and in good a sides of high.
presses 1e bank will be than to alter muon sort of onfinement of wunds, and for , stack-yards, ared off from
especially yould not
Boox IV. HEDGE-FENCES.. tos
grow sufficiently strone or thick to form a proper fence. The advocates for this fence farther allege, that in addition to the two rows of plants forming a more sufficient fence, an opportunity is afforded of planting a row or rows of trees on the middie of the bank.
Wy 381(fig. 381.). This fence is liable to many objections: the ex- ONY pense of forming the ditches, the hedge-plants made use of, and
the ground occupied thereby, being double of what is re-
Tia—*=) quisite in a single ditch and hedge. From twelve toeighteen
ae/ y} or twenty feet is the least that is required for a double ditch and hedge: this space, in the circumference of a large field, is so considerable, that upon a farm of 500 acres, divided into fifteen enclosures, the fences alone would occupy above forty acres. By throwing up a bank in the middle, the whole of the nourish- ment, not only of both hedges, but also of the row of trees, is confined solely to that space, which, from its being insulated by the ditches, and elevated so much above the common surface, not only curtails the nourishment of the hedges and row of trees, but exposes them to all the injuries arising from drought, frost,&c. The idea of two rows of plants making a better fence than one is certainly no good reason for such an unnecessary waste of land and money; as, in almost every instance, where the plants are properly adapted to the soil and climate, one row will be found quite sufficient; but, if it should be preferred to have two rows, the purpose will be answered equally well with a single ditch, or even without a ditch at all.
Suzgsecr. 2. Of Hedge- Fences.
2780. Hedge-fences are of two kinds; either such as are made up of dead materials, or such as are formed of living plants of some sort or other. 382 2781. Dead hedges( fig. 382.) are made with the prunings of trees, or the tops of old thorn or other heages that have been
roy
:,°o as to enable the live fence to grow up and complete the enclosure. In many cases, however, dead hedges are had recourse to as the sole fence, and where there is no inten.
they are found to be exceedingly expensive; so much so, indeed, that, after the first or second year, they cannot be kept in repair at a less expense than from a fifth to a tenth part of the value of the land, and sometimes more. When dead hedges are meant for the protection of young live fences, if the quick fence is planted upon the common sur- face, the dead hedge is made in a trench or furrow immediately behind it, in such a way as to prevent the sheep or cattle grazing in the enclosed field from injuring it. Where the quick fence, however, is planted upon the side of a ditch, the dead hedge is for the most part made on the top of the mound formed by the earth taken out of the ditch- these are called plain dead hedges, being made by cutting the thorns or brush-wood, of which they consist, into certain lengths, and putting them into the earth. We call them plain, in opposition to other descriptions of dead hedges where more art is used: such as the dead hedge with upright stakes wattled, and the common plaited hedge bound together at the top with willows.
2782. In respect to live hedges they are made either entirely with one kind of plants, or a mixture of different kinds; and for that purpose almost every tree or shrub known in Britain is either wholly or in part employed. The success of every attempt made to rear good fences will be found ultimately to depend on the plants being suited to the soil and climate, the preparation of the soil, the time and mode of plant- ing, the age of the plants, their size, the dressing or pruning of the tops and roots before planting, weed- ing, hoeing, pruning, and after-management,.
2783. The proper choice of hedge plants is of the first importance. Many failures in this part of the business might be enumerated; especially in the more elevated situations, where great labor and expense have been employed to raise hedges of hawthorn, which, after many years’ care and attention, were found totally unfit for such inclement regions, In such situations, experience has now sufliciently proved, that good fences can be reared in a short time with beech, birch, larch, and the Huntingdon willow: hedges of these kinds ought, therefore, to be the only ones used in hilly countries, or upon cold wet soils; the three first upon the dry soils, and the last, with the addition of poplars, upon such as are wet or marshy. In the low country, however, and in the less elevated parts of the uplands, the white thorn will be found the best upon all the dry, or mode- rately dry, parts of the soil; especially the different kinds of loamy, sandy, or gravelly lands: upon clays, or cold wet soils, however, beech, crab, birch, poplar, willow, and alder, may be used with advantage. The birch, poplar, alder, and Huntingdon willow, are peculiarly calculated for the coldest, wettest, and most marshy parts; while beech, crab,&c, will be found to answer best upon the stiff clays. Hazel, ]
Marking with the line,
Mz urking plough, 2503.
Marl, as known‘to the Romans, 150.
Marl, use of, at Trentham, 7011.
riculture of, 10353.
Marriott, W illiam, his law book relative to agri- culture, page 1167. A.D.
Marshall, Wy illiam, page 1165. A.D.
Mascail, I orang his works on poultry,&c. page
1162, A,D. 1581
ks on agriculture,
fr.
WOrK, Mf Measur Mecha labor.
Materials, to estimate their value, 3085| eet Mather, John, his work on agriculture, page 1170. } z A.D. 1820 Mathieu de Dombasle, C.» his work on agri- | culture, page 1175. A.D. Mattock,—-see Pick. M Maunsell, William, L.L.D., his work on agriculture, it| page 1167. A.D. 1794. “OU UUTe, Tap Maupin, his works on agriculture, page 1173. A.D.
1779. Mauritius, or Isle of France, agriculture of, 1116. Ma: 1Xims of farm management among the Romans,
5. |
vell, an eminent Scottish improver and writer,
May,‘weather and agricultural operations to be per- formed in, page 1192,
May, T J is, his work on agriculture, page 11¢ A.D. 1792. Mayet, Reicirie his work on agriculture, page 1173. A.D. 1790.| Mayo, agricultural survey of, 7096.| Mead, brewing of, in Poland, 642| 4g Meadow lands of France, 390. Meadow lands, méz anagement of, 5197; irrigated,|
5199; upland meadows, 5200;—see and Pasture lands.
Irrigation,
Meadow ay king, 5217; hay tedding machine; hay of mea-|_ i dows eG‘m: ake,; hay of fiorin, 5232,
Meadow water, how to ci mstruct, 4104|
Meadowbank middens, how to form, 217| ] Meadowbank middens, 4595
Meadows, irrigated, 4093; flowi 4094; catch|
work, 4095.
Meager, Leonard, his work on agriculture, page| | 1163. A.D. 1699,| | Mearns, agricultura survey of, 7065.
Measuring chain, bs | Measuring land, 3054.
Mechanical operations common to all arts el | labor, 2877; lifting, carrying, 2879; draw-
hrusting, 2881; wheeling,
(figured ss lucern, 5026. | Medicines for horses and cattle, 5879 | Megrims, 5769. i feikle’s threshing ma chines» 2638; smut machine,| 648 5 awn separator, 2649. Me lampyrum pre itense(figured), cow wheat, 424. Me Jilotus offici nalis cured), used to scent the| Gruyére cheese, Melon, winter, its c nieares in France, 415 Men‘slee ping rooms, 2710. Menzies, Michael, inventor of the threshing ma-| , chine, 777. Merino sheep, history introduction to Bri- | tain, 769; treatment of, 6407.
Merino or Spanish sheep, 6407. ope Merino sheep, when introduced into Fran Merton’s universal drill plough and harrow, Mesta, or united flock of sheep; a term the Merino flocks in Spain, 716
Ap] sited to
| Metaliferous ores,;| | Metayers of Lombardy, 265; of the N- i ritory, 313 | M xico, agriculture Ob ITSO crcl face, 1151; soil, 1152 floating f § gation, 1157; ma woods, 1162; breeding; Mexi- can cochineal, fruit| ee
ac dle horned cattie, ddlemen in Ireland
GENERAL ID
Mc rfounde ring or catarrhal fever in horses,
Morocco,<
YP MMOorog
Mortiz
Moss cutting 1
VYDEX.
1215
Mills, John, F. Es 1164 3B) 1759.
Mineral anedous culture,‘ 2161.
Mineral manures line earths, 2: O17: quick lime, 229() on wheat crops, plying lime, 2
, his works on” agriculture, page
its study with reference to‘ 2053;“earths and soils, 2054; 3; Manures
different species of, lime, 2218; burnt mild lime, 1D
1009
2217; alka- lime, 2219; ; effect of lime ; general principles for ap- 233; difterent kinds of limestone,
2225 5 mz ignesi: in limestone, 2°> gypsum, 2999= phosphz te of lime, 2235; bone ashes, 2236; saline
magnesia, 2237;
Mineral mz anures, 2213
Mineral manures, theory of their operations on soils and plants, ae 1; saline, 2214.
Mineral poisons, 57:
inerals and mines,-— see Mines.
wood ashes, 2238; soda, 2239,
Mines and miner: als, their establishment or work ing on estates, 3578; coal mines 3580; lime stone, chalk k, and Stone, 3584; salt, 0592; metals,
3s 593 Mining plough, 2497,* Minnow, 6810.
Mint, 5524. Mites; cheese, 6913. Models of estates, 3119 Moisture, in respect to the culture of vegetables,
1791.
Moisture, its influence on vegetable:$s, 1699, Mok lavia and Wels uC chu 1, agriculture of, 738. Mole, to destroy,
Mole. traps, 247
Molesworth, Robert, V viscount, his work on agri culture, page 1164. A.D. 172"
Moluccas, or Spice ae ands, ot ae of, 1024
Monag han, agricultural survey of, 7101.
Monk, John, his works on agriculture, page 1167 A.D. 1794.;
Monkies of Cons go, 1086. Monmouths shire, agricultural eumey of, 7008 wit
Moore, Sir Jonas, Knt. F.R.S., his works on ag culture, page 1163. A.D. 1685 Moors, to ee 4181.
Moose deer, C. alces, 6622.
Morasses and bogs, to improve, 4183.
Morayshire, ag ricuitural survey of, 7067
Mordant, John, lis work relative to ste 1164. A.D. 1761.
Morel de Vinde, his works on agriculture A. D. 1807 and 1822.
orel, Phallus esculentus
wards, page
spage 1174. figured), 1310
5765. M.D. F.R S., his works on agricul 4. A.D. 1766.
‘4 Fr rancis, his work on agriculture, page 1171
an, John,
her, his work on agriculture, page
ge 1170. A.D
Ve hs Ub Jil.
ley, John, his work on manure, 1]
griculture of, 1072; manure and c ulture, 1073; neon 1074; nomadic cultivators, 1075 ues, ar n ce, his work on agric ulture,} page 1175. A D./
fortemar, toi ulture,
his work
e; on agti
le Baron d page 1175. A.D. 18 i ohn] his work on ¢ 1707
2¢ agriculture, page 1163
A.D nachine of Ge » to improve,
1eral Dirom, 7053 4183
pone ee Esq., his treatise on poultry,
Middl ex, agricultural sur\) peel, 0, A.D. 1815. Mid John, Esq., his wor on agriculture, Mould ebaert, an implement for levelling, in use in 8. A 17| I Flanders nOOL Mi id-lo thian, agricultural survey of, 704 Moulding sledge e, Migration of animals, 1969. ait Mo intainous and| grounds, to improve, 4160 Mi ildew, a disease of pee 1659. Mot>, to destroy, 6859. Milk, its management, 6316 Mouse traps, Mi Ik, 4 ts chemical| erties and general principles, Mouth ill, or lamp OU 6 Moutiers,. alt we irks of, i0.
. Milk, different preparations of, 6369. Mowing 0; grain, 2931; grass, 2932: weeds. Milk barrow in use in Derbyshire, 7014, fig. 792 ne weeds in rivers, 2934; with the Hainalt Milk eee I: eythe, 2936,
lilk tankard, its) erry, culture of, in Tuscany, 287 ing, and he m. inagement of mill erry, its culture in Hindustan, 8 et, Holcus sorghum, its culture in China, 979, erry, its culture in France, 408
Millet, different kinds of, and their culture, L7
rry, culture of, in Gerry
ae I> fills for ra ising water in Flanders Mule, among the Romans, 106. Mills, their establishment on est OL 5 Mule and hinny, 6098, 6102; shocir mills, 3564; water mill, 3565; ¢ Is, 3566, 6103.
———E es
1216 GENERAL
Munnings, Rev. Thomas Crowe, his work on agri- culture, page 1169. A. 1803.
Munro, Col. Innes, his guide to farm book-keeping, page 1170. A.D. 1822.
Murrain or pest,:5767; in sheep, 6507; in cattle,°6249.
Muscovy duck, Anas Moschata, 6738.
Mushroom, Agaricus campestris(figured), 1310.
Music, its influence on the stag, 6617.—
Music, its use in fattening pigs in Mexico, 1163.
Mustard, cultivation of, in Yorkshire, 7021.
Mustard, culture of, in Hindustan, 887.
Mustard, its culture as an oil plant, 5475; for other purposes, 5479.
Mustella ferro, the ferret, 6671.
Myoxus glis, the dormouse, 6615.
Myrrh, from what plant obtained, 1455.
N.
Nairnshire, and Morayshire, agricultural survey of, 7067.
Naismith, John, his works on agriculture, page 1166. A.D. 1790.
Naked disease in sheep, 6521.
Nan, Rh. Seb., his work on agricuiture, page 1176. A.D. 1791.
Napier, Hon. Wm. John, F.R.S. Edin., his treatise on store farming, page 1170. AD. 1829.
Narcotie principle, from what plants obtained, and how used, 1396.
Neat, or horned cattle, 6104.
Neck, diseases of, 5780. 5782.
Neglected plantations, to improve, 3718.
Nelumbium, its culture in China, 977.
Nests for poultry, 6679.
Netherlands, agriculture ef, 422; secret of Flemish husbandry, 425; climate and surface, 427; landed property, 430; farmeries, 431; arable lands, 435; fallows, 456;*polders, or embanked lands, 440; rotations, 445; crops, 453.
Neuropterou 5 or nerve-winged insects, 6896.
Neuve-Eglise, Louis-Jose ph Bellepiere de, his works on agriculture, page 1172. A.D. 1761.
New Britain, agriculture of, 1027.
New Brunswick and Nova Sc otia, agriculture of, 1170; Cape Breton, 1171.
New Caledoniz Ly agriculture of, 1027.
New Forest in Hampshire, 7039,
New Hebrides, agriculture of, 102
New Holland, agriculture of, 102 i
New Ireland, agriculture of, 1027.
New Zealand, agriculture of, 1028.
New Zealand hemp, 1028.
Newby, Thomas,{ his work on the mangel wurzel, page 1170. A.D. 1819.
Newstead farm, 3861.
Nicking, doc king, and cropping, in horses, 5877.
Night soil, as a manure, 2195.
Nilghau, or white- footed ante one, 6628.
Norfolk, agricultural survey of, 7003.
Norfolk eart and we 1ggon, 2623.
Norfolk wheel pone 2516.
Norfolk horse rake, 2593.
Norfolk drill roller,
Norfolk corn drill, 2
Noria, or bucket w heel‘of Spain( figured),
Noria of the Alps(figured), 368.
i.
INDEX.
Nutrition of vegetables, 1511; sce Vegetable nu- trition.
0.
Oak of China, 972.
Oak tree, Phoenix dactylifera, culture of, in Persia,
855.
Oat, culture of, 4694; species and varieties, 4695;
soil, 4706; sowing, 4709; harvesting, 4713; kiln-
drying oats in Russia, 4714; use, 4718.
Obea, or eating dirt, a practic e among West India
slaves, 1199.
Obstetrics in cattle, 6275.
Occupation of land in Savoy, 350.
October, weather and agricultural operations to be
performed i in, page 1195.
Oil of almonds, its manufacture, 1411.7
Oil of poppy, its uses, 1417.
Oil mills of the Chinese(figured), 967, 968, 989.
Oil plants, 5458.
Oil plants of Hindustan, 887.
Ointments used for hor: cattle, sheep,&c., by veterinary practitioners, 5921.
Olea europea(figured), the olive, 731.
Olive, its culture in France, 410.
Olive, its culture in Spain, 706.
Olive, culture of, in Tuscany, 289.
Olive oil, how manufactured, 1410.
Olives, 731; almonds and carobs, 733; forests, 736.
Olivier, G. A., his work on agriculture, page 1174. A.D. 1792
Onorati, Nicola Colume la, his works on agricul- ture, page 1178. A.D. 1816.
Operating with the cultivator, grubber,&c., 3019.
Operations of agriculture, 2875; manual labors and operations, 2876; operations with laboring cattle, 2992; scientific operations, 3052.
Opthalmia, 5771.
Orange and pomegranate in Spain, 710.
Orange, its culture in France, 414.
Orange in Persia, 856.
Orchard attached to the farmery, 2755.
Orchards, their formation and: management, 3770 5 soils and situz ations, 37715; sorts of trees, 3776 5 manner of pla mting, 3793's cultivation of farm orchards, 3797; gathering ona keeping of orchard fruits, 3807.
Orchards of Clydesdale, 7056
Orchards of Herefordshire, 7009.
Orchards of Gloucestershire, 7006.
Orchards of Roxburghshire, 7050.
Orchards of Worcestershire, 7007.
Orchis, or Salep plant, 5526,
Orkney and Zetland cz ee 6123
Ornamental cottages, 273
Orobanche major(figured), broom rape, 2 noxious weed in the clover erounds of Flanders, 463.
Osier grounds, their management, 3738.
Otaheite, Sone ulture of, 1035; soil, 1036; produce, 1037; live stock, 1038.
Over-reach, or treads on the feet of horses, 5859.
Ovis strepsiceros(figured), the Hungarian sheep, 619.
Owen, Rey. T., M.A., his work on agriculture, page
1168. A.D.71800.
Ox or bull family, 6105; varieties, 6106; criteria of
qualities in the bull family, 6155,
Norland, or North Highland, cattle, 6122,
Norman“clergy great agriculturists, 205.
North, Ric hard, his work on agriculture, page 1164. A. D. 1760.
North, Roger, his history of esculent fish,&c., page 1167. A.D. 1794.
North America, agriculture of, 1127; climate, 1127; surface, 1128; general character, 1129; United States, 1130; Mexico, 1150; British possessions, 1166; West India islands, 1172.
North Riding of Yorkshire, agricultural survey of, 702
Northamptonshire, agricultural survey of, 7018.
Northumberland turnip drill, 2555; one-row drill,
2557.
Northumberland horse hoe, 2541.
Northumberland, agric ultural survé ey of, 7024.
Nottinghamshire, agricultural survey of, 7015.
Notts, or hornless sheep, 6394.
Nova Scotia, agriculture of, 1170.
November, weather and agric ultural operations to be performe od in, page 1195.
Nubia, agriculture of, 1065.
Nutmeg tree, culture of, in the Spice islands, 1024.
Ox of Hindustan, 899.
Ox of Thibet, Bos grunniens, 869.
Oxen of Abyssinia, 1043.
Oxen of the Romans, 100.
Oxen as laboring cattle, 4464.
Oxen, shoeing of, 6219.
Oxen, working of, 6125.
Oxfordshire, agricultural survey of, 7004.
Oxygen as a constituent part‘of the atmosphere,
¢ 2275
Oyster fisheries, 3604. Oysters, breeding and rearing of, near Naples, 325.|
iz,
Pailiet,——, his work on agriculture, page 1173 A.D. 1791.
Pails, 2439.
Paling fences, 2815.
Palladius, R. T. E., his work on agriculture, 50. Pallet,'T., his ate on agriculture, page 1168, A.D 99:
? x | “* Parag’ Paring 2 fon, gi; <
Palmyra, its culture and application in Hindustan, 893.
Palteau, Guillaume Louis Formanoir de, his work on agriculture, page 1168, A.D. 1768.
Pan, a term applied to the bed or flooring upon which the cultivated soil lies or is plac ed. Mr. Marshall, in speaking of the Norfolk soils, remarks, that“ immediately under the cultivated soil, a hard crust, provincially* the pan,’ occurs univer- sally. And under this an unfathomable ocean of sand may be considered as the prevailing substra- tum. In some places a hungry gravel, but more frequently an absorbent brick earth is the imme- diate subsoil.”’
Pane, in irrigation, 4083.
Panicum miliaceum(figured), or cuJtivated millet, its culture, 472
Panicum germanicum(figured), or German millet, its culture, 4723.
Panicum Italicum(figured), or Italian millet, its culture, 4725.
Papaver, or poppy, culture of, in Flanders, 460.
Papua, or New Guinea, agriculture of, 1206.
Paraguay, agriculture of, 1206.
Paring and burning, mode of performing the opera- tion, 2971; implements, 2973; fenny districts, 2974; we stern counties, 2975; season, 2976; depth, 2977; spreading the ashes, 2979.
Paring and burning soils, theory of, 2134.
Paring wheel- plough,‘ chi 2517.
Park fences, 2829,
Parkinson’s cultivator, 2535.
Parkinson, Richard, his works on agriculture, page 1168. A.D. 1799.
Parmentier, Antoine Augustin, his works on agri- culture, page 1175. A.D. 1781.
Parmentier, Deyeux, and others, their work on agriculture, page 1168. A.D. 1782.
Parmesan cheese, how made in Lombardy, 270.
Parry, Caleb Hillier, M.D., F.R.S., his work on agriculture, page 1168. A.D. 1800.
Parsley field, culture of, 5081.
Parsnep, culture of, 4951.
Parsnep, culture of, in Jersey, 7041.
Parted cast-iron roller, 2580.
Partridge, 6786; quail, 6787; red grouse, 6788; black grouse, 6789; lark, 6791.
Partridge, Tetrao perdix, 6785.
Pastures,‘their manage ment,! 9239; feeding pastures, 5240; weeding, 5242; harrowins a removing ant and mole hills, 5244; manuring, teath- ing, 5246, stocking, 5247; fogging, 5255; water, 525097 Salt,9255:
Pastures of Hindustan, 897.
Pastures, their improvement by tillage, 5261; rota- tion of crops, 5279.
Pastures, mountainous, their management, 5257.
Pasturing corn among the Romans, 140.
Patagonia, agriculture of, 1219.
Patin, Charles, his work on agriculture, page 1171. A.D. 1663.
Pattens for horses, 5939.
Paved roads, 3439.
Pavements of Arbroath, 7064.
Pea, its culture, 4739; varieties, 4740; soil, 4745; sowing, 4747; harvesting, 47: 50 produce, 4755; use, 4759.
Peacock, Pavo cristatus, 6731.
Pearce, William, his work on agriculture, page 1167. A.D. 1794.
Pears suitable for orchards, 37
Pearson, George, M.D., F.R.$ culture, page 1169. A.D. 1805.
Peasantry of Jreland, 830.
Peat, how to convert to manure, 2177.
Peat mosses or bogs of Ireland, 807.
Peat mosses, bogs, and morasses, to improve, 4183.
Peaty soils, how formed, 2062.
Peebleshire, or Tweeddale, agricultural survey of, 7052.
Pelew isles, agriculture of, 1030.
Pelt rot in sheep, 652
Pendro, a disease in sheep, 6524.
Penguin, or wild pine apple, Bromelia penguin, a hedge plant of the West Indies, 1196.
Pepper plant, Piper nigrum(figured), its culture and application in Sumatra, 1014; white pepper, how prepared in Sumatra, 1015.
Perch, 6806.
Peripneumonia, or inflamed lungs in sheep, 6508.
Persia, agriculture of, 850; surface, 851; soil, 852 landed Property, 853; agricultural products, 8 5a: fruits, 855; saline deserts, 857; live stock, 858;
2
1, 3784. .» his work on agri-
4
GENERAL INDEX. 1217
mules, 859; quail hunting, 860; implements and Operations, 861; pigeons, 862’; arable culture 863; forests, 864.:
Perspiration of plants, 152
Perthshire, agricultural survey of, 7063,
Peru, agriculture of, 1203.
Pest or murrain in horses, 5767.
Peters, Matthew, his works on agri es ACD ae n agricuiture, page
Peyrouse, Baron Picot ae ie his work on agricul. ture, page 1175. A.D. 18
Pharmac opeia in horses ai cattle, 5879,
Pheasant, Phasianus colchicus, 67 79; varieties 6780; breeding, 6781; stocking, 6782;: feeding, 6784: fancy pheasants, 67
Phillips, Robert, his work on roads, page 1164. A.D.
ifvé 37.
Pheenicia, its agriculture, 37.
Phrenitis, or inflammation of the brain in horses,
Physicking of horses, 5874; process, 5876.
Physiology and anatomy of the bull family, 6227.
eer and anatomy of the sheep, 6497. ysiology of insects, 6863; eggs, 6864; caterpillars, 6866; chrys salis or pupa state, 6867; sexes, 6868; duration, 6869; scientific arrangement, 6870,
i hytography, or the naming and describing of plants, P 2acenxd, Si his work on agriculture, page 1177. A.D._
Pick or iathces 2375.
Picking, 2886.
Pictet, Charles, his works on agriculture, page 1174, A.D, 1802.
Piers to guard river banks, their construction, 4040, Pigeon,“Columba, 6764; variety, 6765; stocking, 6767; 3 breeding, 6768; food, 6770; salt, 6771; cleanliness, 6772; pigeon houses, 6773; diseases of pigeons, 6777; laws respecting pigeons, 6778.
Pigeon houses of Persia, 862.,
Pigeon dung, its importance in Persia, 862.
Pigeon houses, 6773.
Pigeonry, 2686.
Pigs of the Cape of Good Hope, 1105.
Pike, 6808.
pile hards, use of, as manure in Cornwall, 7039.
Pilchard fishery, 3602.
Pincers, or thistle drawers, 2394.
Pine woods in Inv erness-shire, 7071.
Pining in sheep, 6517.
Pinus pinea(figured), its seeds eaten in Italy, 395.
Pitch and tar, from what plants obtained, and how manufactured and used, 1429,
Pithing animals described, and physiologically con. sidered, 2047.
Pitta WV. iliam, his works on agriculture, page 1167. A:D:
12 ale= aie of hogs in Poland, 642.
Plaister of Paris;— see Gypsum.
Plans, different modes of finishing, 3106.
Plant louse, Aphis, 6884,
Plantain, Musa s sapientum(figured), 1027.
Pla untain, Musa paradisiaca, culture of, in the W. est Indies, 1193.
Plantain or rib wort, culture of, 5070.
Plantations, 3627; soils and situations for trees, 3631; trees, 3638; formation, 3642; enclosing, 3643; planting and sowing, 3645; mixture of
3669; culture of the soil, 3679; filling up blanks, 3683; pruning and heading down trees, 3687; thinning, 3709 5 neglected plant ations, 3718; diseased trees, 3724; products ot trees, 37¢ 34; fel. ling and cutting, 3739; barking, 3748; valuing trees, 3763.
Plantations in North Wales, 7044.
Planting, 2906; seeds and tubers, 2907; plants, 2908 5 preparation,"2909; insertion, 2910.
Planting trees, different methods of, 3659.
Plants, their products;—see V egetable products.
Plants grown for medicinal purposes, 5510; saffron, 5511; liquorice, 5516; rhubarb, 8 lavender,
5621; tae, wormw wood,&e. be 2 ms ch: imomile,
|
Plants grown for their produce in oil, 5458; rape, me 99; mustard, 5475; poppy, 5476; sunflower, 5477
Plants cultivated for their roots or leaves, 4893; their nutritive products, 4824.
Plants cultivated for the arts and manufactures, 5290; for the clothing arts, 5291; brewery and distillery, 5392,
cae te
a aaa
pein ora a
LATE
1218. GENERAL INDEX.
Plants used in the brewery and distillery, their cul- ture, 5392; the hop, 5393.
Plants, their systematic distribution, 1740.
Plants, study of, 1264;— see Vegetable kingdom.
Plants, their food, 1495; water, 1496; gases, 1497: extract, 1502; salts, 1504; earths, 1505; carbon, 1510.
Plants used in domestic economy, 5478; mustard, 5479; canary grass, 5485; buckwheat, 5499; cress, 5501; chiccory, 5503; tobacco, 5505.
Plants used in the clothing arts, 5291; substitutes for, 5389.
Plattes, Gabriel, his works on agriculture, page 1162. A.D. 1638.
Plough of Arcadia, 731.
Plough of Tonquin, 945.
Plough of Yemen, 872.
Plough of Hindustan, 906.
Plough of the Romans, 110; wheel ploughs, 113.
Plough of Osterobothnia, 682.
Plough of Erzerum, 861.
Plough of the Samnites, 682; of the ancient Egyp- tians, 10. 682.
Plough of Castile, 723; of Valentia, 111.
Plough of Virgil, 112.
Plough, Small’s, or Scotch(figured), 770.
Plough of Ceylon, 917.
Ploughing, 2998; general principles and rules, 2999; ieinde of, 3002; relatively to time, 3016; season, 3018.
Ploughing grass lands, 5261; rotation of crops, 5279.
Ploughing among the Romans, 127.
Ploughing in Roxburghshire, 7050.
Ploughing match at Trentham, 7011.
Ploughman, Roman, his qualities, 88.
Ploughman’s Jodge or bothy, 2709, 2710.
Ploughmen of Mid-Lothian, their dress and diet,
M
7047.
Ploughs with wheels;—see Wheel ploughs.
Ploughs of China, 987.
Ploughs, swing, their construction, 2481; by Bailey, 2482; by Small, by Vetch, 2482; other kinds, 2491; Somerville plough,2492; turn-wrest swing plough, 2493; Ducket’s skim coulter plough, 2494; double share plough, 2496; trenching plough, 2497; dou- ble furrow plough, 2498; Argyleshire plough, 2499; double mould-board plough, 2500; ribbing plough, 2501; single hoe plough, 2502; marking plough, 2503; Finlayson’s rid plough, 2504; Cly- mer’s plough, 2505.:
Pliny, C. Secundus, his natural history, 49.
Plum, winesour variety, 7020.
Plums suitable for orchards, 3787.
Pneumonia, or inflammation of the lungs, 5786.
Poison tree of Java, 936.
Poisons, mineral, 5792.
Poisons, vegetable, 5794.:
Poland, present state of agriculture in, 628; landed property, 629; post-houses and farms, 630; vil. eet 630; climate, 631; surface, 632; arable cul- ture, 633; implements and operations, 634; live stock, 635; forests, 636; bees, 637; brewing mead, 642.
Polecat, to destroy, 6851.
Pole evil, 5773.:;
Polignac, Comte Charles de, his work on agricul- ture, page 1175. A.D. 1822.
Polled, or hornless cattle, 6115._ a
Polonceau, M., his work on agriculture, page 1175. A.D. 1824.
Polynesian Islands, agriculture of, 1012.
Polytrychum commune(figured), one of the most universal of vegetables, 1746.;
Pomeroy, William Thomas, his work on agriculture, page 1167. A.D. 1794.
Pond, in irrigation, 4088.:
Ponds, to construct, 4130; ponds of Gloucestershire, 4136; Derbyshire artificial meers, 4137.
Pontey, William, his works on trees, page 1168. A.D. 1800,:
Poor, education of, in Devonshire, 7038.
Poppy, its culture as an oil plant, 5476.
Poppy, its culture in Hindustan, 885.
Poppy oil, its uses, 1417.
Pork and bacon, to eure, 6576.
Porpoise, the enemy of the salmon, 3613. rf
Porta, J. B., his work on agriculture, page 1175. ‘ACD: 1592.
Portable or hand-threshing machine, 2453.
Portugal, agriculture of, 728.
Pot tree of Brazil, Lecythis ollaria, 1210.
Potatoe, its culture, 4825; history, 4826; varieties, 4832; soil, 4839; planting, 4843; taking the crop,
4856; storing, 4859; produce, 4864; application, 4867; diseases, 4874.
Potatoe, culture of, in Lancashire, 7027.
Potatoe in Hindustan, 881.
Potatoe, culture of, in Flanders, 465.
Potatoe dibber, 2397.
Potatoe setscoops, 2417; Edinburgh setscoop, 2418.
Potatoe drill, 2469.
Potatoes in Durham, 7093.
Potatoes, their first introduction to England, 1565.
Potatoes, culture of, in Ireland, 826.
Poultices in veterinary surgery, 5867.
Poultry houses, 2682.
Poultry houses of Lord Penrhyn, 7028.
Poultry houses, their furniture and utensils, 6673.
Poultry, gallinaceous, 6680; anserine or aquatic, 6732; diseases of, 6757.
Poultry yard, 2752.
Poultry yard of the Earl of Chesterfield in Derby- shire, 7014.-
Pounding limestone, 3591.
Preaudeau Chemilly, Eugene, his work on agricul- ture, page 1174. A.D. 1794.
Préfontaine,——, his work on agriculture, page 1172. A.D. 1763.
Preservation of vegetables, principles of, 1797.
Pressing plough or roller, 2515. 2585.
Prevost, Benedict, his work on agriculture, page 1174. A.D. 1807.
EG John, his treatise on sheep, page 1169. A.D.
809.
Pricks in the feet of horses, 5857.
Pringle, A., his work on agriculture, page 1167. A.D. 1794.
Pristly water meadow described, 4107.
Products of plants;—see Vegetable products.
Profits of farming among the Romans, 166.
Profuse staling, or diabetes, 5816.
Pronged tillage implements, 2527; their merits, 2528.
Propagation of plants;—see Vegetables, their pro- pagation.
Pruning knives of Java, 935.
Pruning of hedges, 3705.
Pruning, 2916; objects of, 2923; growth, 2924; les- sening bulk, 2925; modifying, 2926; adjusting, 2997; renewal, 2928; curing diseases, 2929.
Prussia, agriculture of, 563; institution of Moegelin, 565; farm of Moegelin, 572; sheep, 574; cows, 576; ploughs, 577; threshing machines, 578; cul- ture of the vine, 579.
Puceron or aphis, 6884.
Puckeridge, or wornals in cattle, 6274.
Pumiced foot, 5852.
Pumpkins, or vegetable marrow of Cochin China, (figured), 944.
Pumps, kinds of, 4154.
Purging medicines used in veterinary practice, 5915.
Q.
Quail, Tetrao, 6787; grouse, red, 6788; black, 6789; cock of the wood, 6790.
Quail, hunting of, in Persia, 860.
Quails of Tonquin(figured), 945.
Quarries, their establishment or working, 3587.
Quassia, or bitter of porter, 1217; cabbage tree beetle, 1217.
Quayle, Basil, his work on agriculture, page 1167. A.D. 1794.
Queen’s county, agricultural survey of, 7082.
Quercus suber(figured), the cork tree, treatment of in Spain, 726.
Quittor and canker in the feet of horses, 5858.
R.
Rabbit, 6591; warrens, 6593; tame rabbits, 6600; rabbit house and hutches, 6601; varieties of tame rabbits, 6603; breeding, feeding,&c., 6604.
Rabbitry, 2685.
Racing shoe for horses, 5934.;; Rack and manger for colts in use in Leicestershire, 7013; in Derbyshire, 7014.< Radcliff, Rev. T., his work on agriculture, page 1170.
A. D. 1819.
Rail roads, 5459.
Rain, theory of, 2500; phenomena, 23015; cause, 2302; quantity, 2303.
Rain water, to collect, 4129.
Raking| Raley,\ 4D, Rammed Randall, ties.
Rapacity
tion, 1! Rape, cul tat, dom Rat traps Rauch, F A.D, I 1
Raus ture, paf Ray, or ru Be, Filipp A.D. 18 Reaping, 2 2939; ga Reaping a Reaping h Reaping 0 Reaping| chine,{ Salmon ing ma Rearing Rearing ¢ Réeaumur
Red wate Redolf, C A.D, 1 Reed, mo Reeve, Ga A.D. 1
Rein deer Rein deer, Rennet, it Rennet of Rennie, Ge 167, A, Rent of lan Renton, Ge A.D, 18) Reports on, Reproductiy Resinous tre Resins, whe Used, 149; Mastick,] tacambac, Or balm of blood, 143 14595 ore 142 lac,| BUM resins, Retiring hoy Rhomboidal} Rh ubarb, 55] \ibwort plan Ficci, Jacopo A D. 1816, Rice its culty Me; culture Rice In Hind, Richa rds, Joh
Richter, Kp A.D, 1804, Ricinus com S95 cult tick yard, ¢ Hing, gg Mem, his. y th Min, hi
Page 1165,
Rakes, 2380; hay rake, 2381; corn rake, 2382; stubble rake, 2584; daisey rake, 2385; drill rake, 2386. Raking by manual labor, 2896. Raking with horses, 3030. ftaley, William, his work on agriculture, nage 1166. D. 1783.
Rammed earth, or en pisé walls, 2848.
Randall, J., his works on agriculture, page 1164. A.D. 1764.
Rapacity of animals, its influence on their distribu- tion, 1980.
Rape, culture of, in Flanders, 457.
Rat, domestic, to destroy, 6855; field rat, 6859.
Rat traps, 2475.
Rauch, F. A., his work on agriculture, page 1174. A. D. 1802.
Rawson, Thomas James, Esq., his work on agricul- ture, page 1169. A. D. 1807.
Ray, or rubbers in sheep, 6522.
he, Filippo, his works on agriculture, page 1177. A. D. 1808.
Reaping, 2937; bagging, 2938; shaving and stacking, 2939; gaiting, 2940; pulling, 2044.
Reaping among the Romans, 132.
Reaping hooks, 2406; Hutton’s hook, 2407.
Reaping machine of the Romans, 133.
Reaping machines, history of, 2599; Boyce’s‘ma- chine, 2600; Plucknet’s, 2601; Gladstone’s, 2602; Salmon’s, 2603; Smith’s, 2604; clover pods reap- ing machine, 2605; clover mowing machine, 2606.
Rearing animals, principles of, 2020.
Rearing of horned cattle, 6152.
Réaumur, Réné Antoine Ferchault, sieur de, his work on agriculture, page 1171. A. D. 1749.
Red clover, culture of, in Flanders, 463.
Red water, or inflammation of the kidnies in cattle, 6262.
Red water in sheep, 6504.
Redolfi, Cosimo, his work on agriculture, page 1178. A. D. 1818.
Reed, mode of thatching with, 2953.
Reeve, Gabriel, his work on agriculture, page 1163. A. D. 1670.
Rein deer moss(figured), 675.
Rein deer, C. tarandus, 6623.
Rennet, its kinds and uses, 6337.
Rennet of Dutch cheese, 6340.
Rennie, George, Esq., his work on agriculture, page 1167. A. D. 1794.
Rent of land in Ireland, 813.
fenton, George, his work on agriculture, page 1168. A. D. 1801.
Reports on improvements or valuations, 3121.
Reproductive system of animals, 1936.
Resinous trees, season of pruning, 3695.
Resins, what, from what plants obtained, and how used, 1427; rosin, 1428; pitch and tar, 1429; mastick, 1430; sandarach, 1431;"elemi, 1432 5 tacambac, 1433; labdanum, 1434; opobalsamum,
or balm of Gilead, 1435; copaiva, 1436; dragon’s blood, 1437; guaiac, 1438; Botany Bay resin, 1459; green resin, 1440; copal, 1441; animé, 1442; lac, 1443; bloom, 1444; use of resins, 1445; gum resins, 1446.
Retiring houses of China, 999.
Rhomboidal harrow, 2571.
Rhubarb, 5518.
Ribwort plantain, culture of, 5070.
Ricci, Jacopo, his works on agriculture, page 1178. A. D. 1816.
Rice, its culture, 4735.
Rice, culture of, in Egypt, 1052.
Rice in Hindustan, 881.
Richards, John, his work on stewards and tenants, page 1164. A. D. 1730.
Richter, K. F., his work on agriculture, page 1176. A. D. 1804.
Ricinus communis(figured), the castor oil plant, 849; cultivated by the Chinese, 970.
Rick yard, 2744.
Ridging, 2891.
Riem, his work on agriculture, page 1172. A. D. 1770.
Riem, J., his work on agriculture, page 1176. A. D. 1792.
Rigaud, de V Isle, his work on agriculture, page 1172. A. D. 1769.
Rigby, Edward, M.D. F.L.S., his work on agricul- ture, page 1170. A. D. 1820.
Ring bone, 5840.
diingsted, Josiah, Esq., his works on agriculture,
GENERAL INDEX.
Rippling, 2966. i
Rising of the lights in sheep, 6508.
Rivers, to change their course, 4045,*
Rivers, guarding of their banks, 4038,~
bare his work on agriculture, page 1176. A. D.
786.
Rood one onan inclined plane near Warrington, 7027.
Roads, concave, in Derbyshire, 7014.
Roads of Sutherland, 7070.
Roads, their different kinds, 3286; national or high- ways, 3287; parochial, 3288; lanes, 3289; estate roads, 5290; farm roads, 3291 3; horse roads, 3292; foot paths, 3293; railroads, 3294; paved roads, 3295; planked roads, 3296; approach roads, 3297.
Roads, their formation, 3280; kinds, 3286; direc. tion, or laying out of roads, 3299; form and materials, 3317; wear or injury of roads, 3318; M‘ Adam’s theory, 3333 3; paved roads, 3439; rail- roads, 3459; preservation and repair, 3473.
Hons origin of their improvement in Scotland, (30,
Roads of Java, 937.
Roaring, or pneumonia, 5787.
Robertson, James, D. D., his work on agriculture, page 1168. A. D. 1799:
Robertson, Rey. George, his work on agriculture, page 1167. A. D. 1795.
Robson, James, his work on agricultur A. D. 1794.”. ses ae
Rocca, Abbé Della, his work on bees, page 1177. A. D. 1790.
Rocks, how convertéd into soils, 2061.|
Rocky surfaces, to improve, 4163.
Hocque, Bartholomew, his works on agriculture, page 1164. A. D. 1761.
Roe deer, C. capreolus, 6618.
Rollers, 2578; common, 2579 3 parted cast iron roller, 2580; spiky, 2581; roller and water box, 2582; furrow roller, 2583; Norfolk drilling roller, 2584; pressing plough or roller, 2585.
Rolling, 3028; grass lands, 3029.
Roman agriculture, profits of, 166.
Roman agricultural writers, 44.
Roman agriculture as a science, 170; its extent in other countries, 174; in Germany, 175; in Britain, 176; its decline, 178,
Roman farmers, 60.
Roman plough, 110.
Roman ploughmen, their qualities, 85.
Roman servants, 88; their wages, 89; their food, 91
Romans, landed property among, 53.
Romans, their agriculture, 42.
Romans, their villas, 75.
Romans, their maxims of farm management, 157.
Romans, their farms and farmeries, 72.
Romans, their farm management, 71.
Romans, their agricultural implements, 109. 7
Romans, their agricultural operations, 126; plough- ing, 127; fallowing, 128; manuring, 129; sowing, 131; reaping, 132; threshing, 135; hay making, 138; weeding, 139; harrowing, 140; watering, 141.
Romans, their agricultural animals, 93; bulls, 95; cows, 96; oxen, 101; asses, 105; mules, 106; horses, 107; dog, 108; sheep, 108.
Romans, their beasts of labor, 93.
Ronconi, Ignazio, his work on agriculture, page 1177. A. D. 1804.
Rood’s convertible waggon, 2624.
Root breaker or bruiser, 2474,
Root house, 2704.
Rope twister, 2396.
Rope twisting machine, 2457.
Rope twisting, 2947.
Roscommon, agricultural survey of, 7094.*
Rosin, from what plants obtained, and how manufac- tured and used, 1428.
Ross, Nairn, and Cromarty, agricultural survey of the shires of, 7068.
Rossig, Karl Glo, his work on agriculture, page 1176. A. D. 1781.
Rossore, agricultural establishment of, in Tuscany, 297.
Rot in sheep, 6502. 6518,
Rotation of crops, theory of its beneficial effects, 2154; by Sir H. Davy, 2155; by Yvart and Pictet, 2158; influence in destroying insects by Olivier, 2160.
Rotation of crops in Saxony, 599,
page 1165, A. D. 1774.
Rotations of crops in Lombardy, 272; in Tuscany, 282, f
?
4192
ease TR enna
UL, a Te A
Wale peas
i
1220
Rotations of crops, 4549; see Crops.
Rotations of crops in Flanders, 445.
Rotations of crops in Spain, 712.
Roughley, Thomas, his work on agriculture, page 1179. A. D. 1823. i
2ow culture of China, 1002.
Rowels, 5869.
Roxburghshire, agricultural survey of, 7050.
Roxier, Francois, his work on agriculture, page 1172. A. D. 17R.
Rubbers or ray in sheep, 6522.!
Rubus chamemorus(figured), cloudberry, 680.
Ruckert, G. Ch. Alb., his work on agriculture, page 1176. A. D. 1800.
Rudge, Rev. Thomas, B.D., his work on agricul- ture, page 1169. A. D. 1807.
Running thrush in the feet of horses, 5855.
Runners of plants, to propagate by, 1617.
Russia, agriculture of, 645; climate, 647; landed property, 653; farmeries, 654; villages, 654; agri- cultural products, 655; fruits, 659; live stock, 660; forests, 561; implements and operations, 662.
Rutlandshire, agricultural survey of, 7017.
Rye, culture of, 4650.
Rye, culture of, in Flanders, 4
Rye, George, his work on agriculture, page 1164.
A. D. 1730.
Sack barrow, 2450. Saffron, 5511. St. Helena, agriculture of, 1118. Saintfoin, culture of, 5042; soil, 5044; sowing, 5047; taking the crop, 5052; produce, 5055. Salisbury, W., his work on agriculture, page 1170. A. D. 1822. Salivation in horses, 5793. Salmon, natural history of, by Headrick, 7064. Salmon, 6811. Salmon fishery, 3609. Salmon fishery of the Tyne, 7023; of the Tweed, 7024. Salmon, William, M.D., his work on agriculture, page 1163. A: D. 1723. Salop, from what plants obtained and how manu- factured, 1375. Salt, use of, in Cornwall, 70: Salt mines of Cheshire, 702: Salt works of Droitwich, 7007. Salt mines, 3592. Salt works of Moutiers, 370. Salting hay, 5233. Salts, as ingredients of vegetable food, 1504. Salvini, Gio., his work on agriculture, page 1177. A D. 1168. Samnite plough, 682. Sampson, Rev. G. Vaughan, his work on agricul- ture, page 1168. A. D. 1802. Sand cracks in the feet of horses, 5856. Sandwich Isles, agriculture of, 1034. Sap, ascent of, in plants, 1518. Sap of plants, what, and how obtained, 1469. Sarcey, de Sutieres, his works on agriculture, page 1172. A. D. 17655. Sark, agricultural survey of, 7040. Savoy, agriculture of, 347. Savoy, peasantry of, 350; occupation of land, BEY 2 leases, 357; pasturage, 358; public dairies, 359; vineyards, 361; walnuttrees, 362; tobacco, 360; salt works of Moutiers, 370. Saw fly, 6902. Sawing, 2914. f Saxony, agriculture of, 596 5 culture of the vine and silkworm, 597; sheep, 598; rotation of crops, 599; cows, 600. Scab in sheep, 6522. si Scalding mixture for the pole-evil in horses, 5917. Scarifiers, 2527. Scheffold, L, his work on A.D: 1809. Schonlentner, M., his work on agriculture, page 1176. A. D. 1810.: Scientific operations required of the agriculturist,
9.
agriculture, page 1176.
Scirpus tuberosus(figured), its culture in China, 978.
Scotch farmers in Wiltshire, 7032.
Scotch or Small’s plough(figured), 770.
Scotch cart(figured), 770.
Ke al AMER CERN ne
IENERAL INDEX,
a ¢
Scotch plough with two wheels, 2507; with one wheel, 2508.
Scotch scarifier, cultivator or grubber, 2533.
Scotch horse hoe, 2540.
Scotland, agriculture in, during the sixteenth cen- tury, 226. 241.
Scotland, agriculture of, thirteenth century, 208.
Scots grass, Panicum hirtellum(figured), 1186.
Scott, W., his law book relative to agriculture, page 1168. A. D. 1801.
Scott, Edmund, his work on agriculture, page 1168. A. D. 1801. a
Scour in sheep, 6515.
Scouring in sheep, 6516.
Scouring or diarrhcea in horned cattle, 6266.
Scraper, 2392.
Scraping, 2897.
Screening or sifting, 2899.
Scuttle, the name of a shallow basket or sort of wicker bowl much used in the barn and for other purposes. The large ones have handles, but the
_ small ones are without them.
Scythe, Hainault, or Flanders, 502.
Scythe, Brabant, 503.
Scythe, cradle, of France, 398.
Boyne: 2403; Hainault scythe, 2404; cradle scythe, 2405.
Sea-weed eaten in Cochin China, 944.
Sea- weed, or kelp, its growth and manufacture, 5529.
Sea-weeds, theory of their operation as a manure, 2174.
Sebright, Sir J.S., his theory of improving the breed of animals, 1995.
Seed basket, 2437.
Seed, its impregnation, 1592; hybrids, 1598; cross- ing, 1599.
Seeds of plants, their germination, 1486; physical phenomena, 1493; chemical phenomena, 1404.
Selkirkshire, agricultural survey of, 7051.
Sellenders and mallenders, 5836.
September, weather, and agricultural operations to be performed in, page 1194.
Servants, their management, 4522.
Servants of the Romans, 85; their wages, 89; food, Ol
from the eleventh to the
Servieres, B. de, his work on agriculture, page 1173. A. D. 17886.
Sesamum orientale, 970.
Sesamum orientale(figured), cultivated as an oil plant by the Romans, 150.
Setons, 5868.
Shab or scab in sheep, 6522.
Shaddocks of Madeira(figured), 1126.
Shear hog, a wedder lamb in his second year, 6415.
Shearing of sheep, 6436.
Sheep, 6381; varieties, 6384; criteria, 6410; breed- ing, 6414; rearing, 6429; folding, 6468; fattening, 6478; merinos, 6489; anatomy and physiology of sheep, 6497; diseases, 6501.
Sheep of North Wales, 7044.
Sheep, Wiltshire, 7032; of Dorsetshire, 7033.
Sheep, how treated in France, 391.
Sheep of Hindustan, 900.
Sheep of the Cape of Good Hope, 1101.
Sheep(merino) of Spain, their management, 714.
Sheep tic, 6913.
Shifts, such parts of a farm as are allotted for the reception of either stock or crops. It is alsoa term applied to the rotations of cropping lands; thus, we have three, four, five and six coarse shifts, 4549.
Shirreff, John, his works on agriculture, page 1170. A. D. 1814.
cultivated by
the Chinese,
Ship timber, how to produce bends for, 3700.
Shoe, improved form of, for horses, 5926; bar shoe, 5952; hunting shoe, 5933; racing shoe,; grass shoe, 5935; frost shoe, 5936; calkins,< horse pattens, 5938.
Shoeing and shoes for horses, kinds, 5925
Shoeing of oxen, 6219.
Shoeing of hors 5925 various modes, 932.
Short horned or Dutch cattle, 6109.
Shoulder strains in horses, 5828.
Shovel, 2577.
Shovelling, 2888.:
Shropshire, agricultural survey of, 7010.
Siam, agriculture of, 939.
Jol 5
various methods and
5; improved mode, 59265 132
45 oe @‘ ‘ or’ ws 1 a‘) 8 il siddow gidera E Gra J of, 10 sieves,~ pitt,
Silk wort berry,| of silk:
Silk wort
Silk worl
ture, p Singing
aviary, Single hi Skeleto Skim m Skin,(
Smnith,| page|
A.D, Smith, 170. Smut, a Smut m Snail, a Snails a SNOW, i Snow, t
Sickler, F. Ch. L., his work on agriculture, page 1176. A. b,"1808,
Siddow pease, z. e. such as boil freely, 7006.
Sidera Hall farm, 3855.
Sierra Leone(mountains of the lions), agriculture of, 1079.
Siev ves, 2434.
Séewve, his works on agriculture, page 1172. A. D. 1769.
Sifting or screening, 2899.
Silk worm or moth, 6822; treatment of iu re mul- berry, 6824; produce of the worms, 6825; culture of silk in E ngland, 6826.
Silk worms in China, 985.
Silk worm, c ulture of in Austria, 617.
Silk worm, its culture in Hindustan, 884.
Silk worm, its culture in Spain, 709.
Simonde, J.C. L., his work on agriculture, page 1177. A. D. 1801.
Simpson, Pindar, his ie atise on the mangel-wurzel, page 1170. A. D. 181!
Sinclair, G., F.L.S., F."HL S., his work on agricul- ture, page 1171. A. D. 1824.
Sinclair, Rt. Hon. Sir John, Bart., LL.D., M.P., his works on agriculture, page 1166. A. D. 1790. Sinety, André Louis, Esprit, his work on agriculture,
page 1174. A. D. 1803.
Singer, Rev. William, D.D., his work on agricul- ture, page 1170. A. D. 1812.
Singing birds, 6792,; breeding and rearing, 6794; aviary, 6795.
Single hoe plough, 2502.
Skele ton of the sheep, 6498.
Skim milk, 6378.
Skin, diseases of, in horses, 5818.
Slaney, Robert A., Esq., his work on agriculture, page 1171. A. D. 1824.
Slaughtering animals, physiologically considered, 2048.
Slide for conveying mountain timber, 339.
Sligo, agricultural survey of, 7098.
Slimy flux, see Dysentery, 6267.
Slips of plants, to propagate by, 1618.
Slugs, to destroy, 6922.
Sluice, 4075.
Small, James, his treatise on ploughs,&c., page 1166. A. D. 1784.
Small’s plough(figured), 770.
Smith, Rev. John, i D., his work on agriculture, page 1167. A. D. 1798.
Smith or Smyth, Jone his work on agriculture, page 1163. A. D. 1670.
Smith, William, his works on irrigation, page 1169. A. D. 1806.
Smith, Rev. Samuel, his work on agriculture, page LON ACMI 313 el
Smut, a disease of plants, 1658.
Smut machine, 2648.
Snail, edible, 6843.
Snails and slugs, to destroy, 6922.
Snow, its influence in retaining heat, 2257.
Snow, theory of, 2309.
Soaper’ S waste, its theory as a manure, 2245.
Social habit of‘plants, its influence on their distri- bution, 1736.
Society of improvers in Scotland, their history, Fi7s
Soderini, Giovanvettorio, e Bernardo Davazati, their works on agriculture, page 1177: A. 1622,
Soil borer, 2428; of peat, 2430; draining auger, 2431.
Soiling with clover, 5004.
Soils, see Earths and Soils, 2054.
Soils, their influence on the distribution of vegeta- bles, 1711
Soils, their improvement by incineration or burn- ing, 2134.
Soils, their aeration or fallowing, 2124.
Soils, influence of the weather on, 2150; solar in- fluence, 2151; shelter, 2152; shacie, 2153.
Soils, how to discover by chemical analysis, 2083.
Soils of bad quality, 2099.
Soils, their use to vegetables, 2095.
Soils, infiuence of color on, 2108.
Soils, their pulverization, 2113.
Soils, how to discover their qualities mechanically, 2087.
Soils of excellent aiinee 2104; at Ormiston, at Mersea, 2104.
Solar rays, their influence on vegetation, 2259.
4]
GENERAL INDEX. 1291
Solomon isles, agriculture of, 1027.
Somersetshire, agricultural survey of, 7034; North- east district, 7035; Middle district, 1036; South- east district, 7037.
Somerville, Right Hon. sont Lord, his works on agriculture, page 1168. A. D. 1799.
Somerville, Robert, his etek on agriculture, page 1169. A. D. 1805.
Somerville plough, 24.92.
Soot, as a manure, 2204.
Soot, theory of its operation as a manure, 2242.
Sore"throat, 5781.
Sour crez 2m, 6372.
South America, agriculture of, 1201; Terra Firma, 1202; Peru, 1203; Chili, 1204; Paraguay, 1206; Brazil, 1207; Cayenne, 1215; Surinam, 1216; Amazonia, 1218; Patagonia, 1219.
South Americ: un islands, agric ulture of, 1220.
Sowing, 2912; broadcast, 2913.
Sowing among the Romans, 131.
Sowing of plantations considered, 3645.
Spade, 2376.
Spade of the Bushmans of Africa, 1113.
Spadoni, pale his works on agriculture, page 1178.
A. D. 1810. a a‘agriculture of, 688; Moors, 689; sugar-canes the Moors, 690;: climate, 695; surface, 696; Sail 697; landed property, 608; agricultural pro- duc ts, 700; olive, 706; vine, 707; sugar-cane, 708; cotton, 711; rotations of crops, 712; live stock, 713; merino sheep, 714; agricultural im- plements, 723; oper rations, 724; forests, 726.
Spanish or Merino sheep, 6407.
Spaying, the operation‘of castré ating the females of different kinds of animals, as sows, heifers, mares, &c. in order to prevent any future conception, and promote their fattening. It is performed by cutting them in the mid flank, on the left side, with a sharp knife or lancet, in order to extirpate or cut off the parts destined for conception, and then stitching up the wound, anointing the part with tars alve, keeping the animal warm for two or three days. The usual way is to make the in- cision in a sloping manner, two inches anda half long, that the fore-finger may be put in towards the back, to feel for the ovaries, which are two kernels as big as acorns, one on each side of the uterus, one of which being drawn to the wound, the cord or string is cut, and thus both taken out, 6162.
Speed, Adam, his works on agriculture, page 1162. A. D. 1626.
Spergula arvensis(figured), spurry, 475.
Sphynges or hawk moths, 68°
Spider, common, 6914; red spider, 6913.
Splints and bone spavins, 5838.
Splitting, 2921.
Spring fly, 6899.
Springs, to collect, 412
Spurry, culture of, 5079. age
Spurry(figured),‘Spergula arvensis, culture of, in Flanders, 475.
Stable, 2662 5 farm stables in Scotland, 2667; horse hammels, 2675.
Stacey, Rev. Henry Peter, LL.B., F.L.S., his{work on agriculture, page 1168. A. D. 1800.
Stack borer, 2412
Stack covers, 2750.
Stack funnels, 2749.
Stack guard or cover(figured), 3047.
Stack stands of stone and iron, 2747.
Stack yard, 2744.
Stacking stage, 3048.:
Stacking hay, 3044; hay stacks of Middlesex, 3046.
Stacking wood for fuel, 2969.
Stacking corn, 3035; rules, 3036; unsheaved corn, 38041;~ sheaved corn, 3042.
Staffor a, Marquess of, his improvements in Shrop- shire, 7010.
Stafford, Marquess of, his improvements in Suther- land, 7070.
Stafford shire, agricultural survey of, 7011.
Stag deer, Cervus elephas, 6617,
Staggers in horses, 5761.
Staggers, daisey, or turning in cattle,
Staggers, gid, or*turnsick in sheep, 6524,
Stair, Earl of, an active improver, 775.
Sta inds for corn, 2745; for hay, 2748.
Starch, fre what plants obtained, and how manu. factured, 1374, 1875; uses, 5 13(6;4377,
Statistics of British Ee 6923,
5270.
Se SEP
Se
ee
=. ea) j
TIT ELTON CoS SI eS
1222‘(GENERAL INDEX,
Steaming machines, 2651; steamers on a grand scale, 2652; economical steaming and washing machines, 2653, 2654; boiling machines, 2655; baking ovens, 2656.
Steaming house, 2705.
Steel-yard, 2465,
Steindel, A. H. Von, his work on agriculture, page 1176. A. D. 1800.
Stevenson, W., Esq., his work on agriculture, page 1169. A. D. 1809.
Steward, see Manager.
Stillingfleet, Benjamin, his works on agriculture, page 1164. A. D. 1759.
Stipa tenacissima, the esparto rush, 701.
Stirlingshire, agricultural survey of, 7058.
Stirring with the grubber and other pronged imple- ments, 3019.
Stirring the soil among the Romans, 139.
Stocking of farms; see Farms.
Stomach staggers, 5795.
Stomach, inflammation of, in sheep, 6510.
Stone ingnas his works on agriculture, page 1166,
. 1785.
Stone and gravel in horses, 5817.
Stone walls, different sorts of, 2831 3 see Fences.
Store sheep husbandry, 6450.
Strain in the shoulders of horses, 5828; in the whirl- bone, 5830; in the stifle, 5832; in the back sinews, 5833; of the leg, 5834; of the fetlock and coffin joints, 5835.
Strangehopes, Samuel, his work on agriculture, page 1163, A. D. 1663.
Strangles, vives, or ives, 5774.
Strangury, or suppression of urine, 5815.
Strata of England(figured), 2056.
Straw, to truss, 2951,
Straw rope making, 2947.
Straw plait, best grasses for, 5193.
Straw house, 2706.
Straw-yard, 2751.
Strawberries, culture of, in Midlothian, 7047.
Strickland, H., Esq., his work on agriculture, page 1170. A. D. 1812.
Stud and mud, houses built of frame work filled in with clay and straw mixed instead of brick- work, 7038.
Stumpf, G., his work on ,agriculture,‘page 1176. A. D. 1794.
Sturdy in horses, 5799.
Sturdy in sheep, 6524.
Styles, 2870; see Gates.
Substances obtained from plants; see Vegetable Pro- ducts.
Subterraneous irrigation, 4124.
Suckers of plants, to propagate by, 1620.
Suckow, G. Adf. his work on agriculture, page 1176. AS Delis:
Suffolk, agricultural survey of, 7002.
Suffolk cattle, 6117.
Sugar and indigo, attempt to cultivate in Italy, 58.
Sugar cane, culture of, by the ancient Moors, 690.
Sugar cane, its culture in Spain, 708.
Sugar cane, its culture in Egypt, 1056.
Sugar cane, culture of; in Jamaica, 1187. d j
Sugar cane, its culture and manufacture in Hin-
dustan, 882. Sugar, from what plants obtained, and how manu- factured, 1372; different uses of sugar, 1373. Sugar from beet root, manufacture of, in Flanders, 470.
Sugar plants of Austria, 617.
Sumatra, agriculture of, 103.
Sun flower, its culture as an oil plant, 5477.
Surfaces, preparation of, for irrigation, 4096,
Surfeit in horses, 5818.
Surgery in cattle, 6272. a
Surinam, agriculture of, 1216; principal products, PALE
Surrey, agricultural survey of, 6993.
Sussex and Herefordshire cattle, 6114.
Sussex, agricultural survey of, 6994.
Sutherland, agricultural survey of, 7070.
Swan, Anas olor, 6752; varieties or species, 6753; rearing, 6754; feathers and down, 6755.
Swayne, G., his work on grasses, page 1166. A.D. 1790.
Sweden and Norway, agriculture of, 665; climate, 666; surface, 6673; soil, 669; landed property, 670; cottages, 671; agricultural produce, 674; tar, 678; berries, 680; live stock, 681; imple- ments and operations, 682; harvesting, 683.
Sweeping, 2898.
yh neck, 5782,
Swinbourne, R., his farmer’s account
1170. A. D. 1819. peo weaee
Swine, 6530; varieties, 6538; breeding and rearing, 6561; fattening, 6570; curing pork and bacon, 6576; diseases, 6581.
Swine of France, 396.
Pwaing, mode of breeding and rearing in Mexico,
63.
Swine of Paraguay(figured), 1207.
Swine of Hindustan, 902.
Swine, wild, Lady Salisbury’s breed of, 6997.
Swing ploughs, 2479.
Swiss cantons, present state of agriculture in, 327.
Switzer, Stephen, his work on agriculture, page 1163, A. D, 1718.
Switzerland, state of landed property in, 328.
Switzerland, agriculture of, its present state, 326.
Syrian goat, 6584.
Systematic botany, study of, 1266; glossology, 1266; phytography, 1269; taxonomy, 1275.
Tagbelt in sheep, 6517.
Tag sheep; see Hog sheep.
Tanners’ spent bark, how to convert to manure, 2178.
Tannin, from what plants obtained, and in what proportions, 1393; its utility, 1394.
Tar, from what plants obtained, and how manufac- tured and used, 1429.
Tare, its culture, 4795; varieties, 4796; soil, 4799; sowing, 4801; reaping, 4806; produce, 4809; ap- plication, 4811.
Tarello, Camillo, his works on agriculture, page 7 ACID lei7 2s
Targioni,'Tozzetti, his works on agriculture, page 1178. A. D. 1809.
Targioni, Luigi, his works on agriculture, page 1177. A. D. 1802.
Tatham, William, his works on agriculture, page 1168. A. D. 1798.
Taxonomy, or the classification of plants, 1275.
Tea plant, culture of, in China, 961; gathering the leaves, 962; various species grown as tea plants, 962; curing and sorting the leaves, 963; sorts of black and green tea, 964; select sorts of tea, 965 5 Chinese substitutes for tea, 966.
Tea districts of China, 960.
Teazle, or fuller’s thistle, its culture, 5339.
Teeth, diseases of, 5636. 5779.
Teeth of horses, as indicative of age, 5956.
Temperature, its influence on the distribution of vegetables, 1690.
Tench, 6803.
Tenures of landed property, 3144; in England, 5145; Scotland, 3157; Ireland, 3163.
Terra Firma, agriculture of, 1202.
Territorial property, its Kinds and tenures, 3144 5 its valuation, 3165.
Tessier, Henri Alexandre, his works on agricul- ture, page 1173, A. D. 1791.
Tetanus, or locked jaw in horses, 5763.
Tetanus, or locked jaw in cattle, 6271.
Thaer, Alb. his works on agriculture, page 1176. A. D. 1798.
Thaive, a ewe in the second year, 6413,
Thatching, 2948; with straw, 2949; stubble, 2950; reed, 2953.
Thatching knife, 2411.
The Hebrides, agricultural survey of, 7073.
The fox, 6848; mole, 6854; mouse, 6859; rat, 6855; polecat, 6851; weasel, 6852; badger, 6853.
Theress, Theodore, his work on agriculture, page 1176. A. D. 1808.
Thessaly and Albania, agriculture of, 736.
Thibet, agriculture of, 1006.
Thick wind, or pneumonia, 5786.
Thierat, his work on agriculture, page 1172. A. D.
1763. Thiery, P.J., his work on agriculture, page 1175. A. D. 1822.
Thinning, 2905.
Thirlstane store farm, 6451.
Thistle hoe, or hoe scythe, 2549.
Thistle pincers, 2594.
Thompson, Robert, his work on agriculture, page 1168. A. D. 1802.
Oui. Threshin Threshit Threshin Threshir Threshil Threshil Threshi Throat, Thunde
Tibbs, 1 AD
Tighe, D.
Timber,
tains Timber,
price, Time bi Tippera Tithes i Tobace Tobace Tobacec Tobacei Tobace Tollard
A.D, Tonguit Tool ho Topoera
see th Torpidit
1890, Townsey cultu Trades, Trainin, Tramel, of lea legs of them Traps fo Tr atmay
F accom 5
resent; ueSeNt Slate, O,
ve stOlogy, 135; my. 1%"’
Thomson, Rev. John, D.D., his work on agriculture, page 1168. A. D. 1800.
Thoroughpin or blood spavin, 5841.
Thouin, M. André, le Chevalier de, his work on agriculture, page 1174. A. D. 1812.
Thread and dying plants, substitutes for, 5389,
Three wheeled cart, 2618.
Threshing machines, history of, 2625; machine by Menzies, 2627; Dumblane, 2628; Elderton, Smart, 2629; Meikle, 2630; improvements on the thresh- ing machine of Meikle, 2631; mode of yoking, 2632; winnowing machines, 2633; advantages of threshing machines, 2634; Meikle’s two horse machine, 2638; Meikle’s water threshing machine, 2640; Meikle’s machine for water or horses, 2641; Meikle’s machine for wind or horses, 2642; Mei- kle’s machine for steam, 2643; portable machines, 2644; Weir’s two horse power portable machine, 2645; machines by Lester on the rubbing princi- ple, 2646; by Forrest, on the rubbing and scutch- ing principle combined, 2647.
Threshing machine, Meikle’s, in Hertfordshire, 6997.
Threshing by the flail, 2961; whipping out, 2965.
Threshing among the Carthaginians, 136.
Threshing machine, history of its introduction, 777.
Threshing among the Romans, 135.
Threshing machine for a manual power, 2453.
Threshing mill barns, 2697.
Threshing floors, to form, 2691.
Throat, diseases of the, 5781.
Thunder, theory of, 2322.
Tibbs, Thomas, his work on agriculture, page 1169. A. D. 1808.
Tighe, William, his work on agriculture, page 1168. A. D. 1802.
Tillage implements, 2478. Tillage of China, 989.
Tillet, du, his work on agriculture, page 1171. A. D. 1755.
Timber, its conveyance in Switzerland by a moun- tain slide, 339; by floating, 340.
Timber, its valuation, 3763; disposal by sale, 3769; price, 3768.
‘Time book, form of, 3140.
Tipperary, agricultural survey of, 7090._j
Tithes in Ireland, 836.
Tobacco, its culture in Hindustan, 886.
‘Tobacco, its culture at the Cape, 1098.
Tobacco, its culture and manufacture, 5505.°°
Tobacco, culture of, in Yorkshire, 7021.
Tobacco, culture of, in Roxburghshire, 7050.
Tollard, Claude, his work on agriculture, page 1174. A. D. 1805.
Tonquin, agriculture of, 945.
Tool house, 2708.
Topographical survey of agriculture in Britain, 6989; (see the different counties.)
Torpidity of animals, 1974.
Tortoise, common, 6819; mud tortoise, 6820.’
Tortoise of Hungary, 624.
Towne, L.,, his Farmer’s Guide, page 1170. A. D. 1820.
Townsend, Rey. Horatio, M.A., his work on agri- culture, page 1170. A. D. 1810.
Tradesman’s yard in the farmery, 2753.
‘Training of horses, 5984.
‘Tramel, an instrument or device, made sometimes of leather, but more usually of ropes, fitted to the legs of horses to regulate their motion, and teach them to amble, 5997.
Traps for vermin, 2475.
Tratmann, Cp., his work on agriculture, page 1176. A. D. 1809.
Treads or over-reach on the feet of horses, 5859.
Des their products, how used or disposed of, 3734
Trees, table of, for different soils, 3639.
Trees, diseased or injured, their treatment, 3724.
Trees, management of, by the Romans, 145.
Trees, leaves of, used as fodder for cattle in France, 492.
Trees, their importance to a landed estate, 3627.
Trench in irrigation, 4081.
Trench drain in irrigation, 4082.
Trenching, 2890.
‘Trenching or mining plough, 2497.
Trenching plough, 2497.
Trentham estates, improvements on, 7011; charities at, 7011.
aan Alexandrinum, the clover of Egypt, 1051.
GENERAL INDEX. 1223
Trother, his work on agriculture, page 1173. A. D. 1773.
Trotter, James, his work on agriculture, page 1170. A. D. 1812. Trotting of horses, 5991. Trout, 6811. Trowel, Samuel, his work on agriculture, page 1164. . 1739.
are Tuber cibarium(figured), of Hungary, 310.
Trunk, in irrigation, 4076.
Truster, Rev, John, LL.D., his works on agricul- ture, page 1166. A. D. 1780.
Trussing hay or straw, 2950.
Tuke, John, his work on agriculture, page 1168. A. D. 1800.
Tull, ee) his work on agriculture, page 1164:
1731.
A,
Tull’s system of culture, history of, 756.
Tunis, agriculture of, 1068.
Tupputi, D., his work on agriculture, page 1178. A. D. 1808.
Turbilly, Louis Francois Henri de Menon, Mar- quit de, his works on agriculture, page 1172. A. D,
760.
Turf spade, 2378.
Turkey, Meleagris gallipavo, 6724; varieties, 6724= breeding, 6726; fattening, 6728; feathers, 6729.
Turkies, American, 7014.
Turn of water in irrigation, 4089.
Turner, Nieholas, his essay on draining, page 1166. A. D. 1784.
Turning or staggers in cattle, 6270.
Turnip, its culture, 4876; varieties, 4878; soil, 4885; sowing, 4889; summary of turnip culture, 4894> taking the crop and applying it, 4895; produce, 4907; to raise seed, 4909; diseases, 4913.
Turnip, history of, in Northumberland, 7024.
Turnip chopper, 2456.
Turnip drills, 2555.
Turnip roller, 2473.
Turnip tray, 2440.
Turnip hoeing, 3024.
Turnip, culture of, in Flanders, 464.
Turnip barrow drill, 2472.
Turnip slicer, 2455.
Turnips and clover, their introduction as agricultu.
ral plants in England, 235.
Turnips, their introduction to Surrey, 6993.
Turnsick or sturdy, 5769.
Turnsick in sheep, 6524.
Turn-wrest swing plough, 44.93.
Tusser, Thomas, his works on agriculture, page 1166. A. D. 1557.
Tweeddale, agricultural survey of, 7052,
Tyrone, agricultural survey of, 7102.
U. z;
United States, agriculture of, 1130; climate, 1130 j season, 1131; surface, 1132; soil, 1133; landed property, 1134; dividing and selling lands, 1135; price, 1136; lands not yet cultivated, 1138; prac- tice of new settlers, 1139; political circumstances, 1141; agricultural products, 1142; live stock, 1143; operations, 1144; civil circumstances, 1146; domestics, 1147; emigration, 1148.
United States as compared with Van Dieman’s land, 1149.
Upas, or poison tree of Java, 936.
Urinarium, 2743.
Urinary organs of horses, diseases of, 5812.
Urine, bloody, or strangury, 5815.
Urine, cisterns of, Flemish farmeries, 434.
Urine, incontinence of, 5815.
Urine drink used in veterinary practice, 5905. Urine, suppression of, 5815.
Orine, theory of its operation as a manure, 2191.
iV:
Valerian, 5525.
Valerian, culture of, in Derbyshire, 7014. Valisneria spiralis, singular economy of, 1591. Vallée, Alexandre, his work on agriculture, page 1177. A. D. 1803.
Valuation of trees and plantations, 3089. 3763. Valuation, purchase, and transfer of landed pro-
Tripoli, agriculture of, 1067.
4
perty, 3143. 5’ Valuing Jabor and materials, 3083; farming stock,
ea TT ES
=
994
3086; leases, 3094; landed property, 3099; mines and minerals, 3105,
Vancouver, Charles, his work on agriculture, page 1169. A. D. 1807.: Vanderstreten, F., his work on agriculture, page
1170. A. D. 1816.
Van Diemen’s land, agriculture of, 1029.
Van Diemen’s land as compared with the United States, 1149.
Varenne de Feuille, P. C., his works on agriculture, page 1173. A. D. 1789.
Varlo, C., Esq., his work on agriculture, page 1165. A. D. 1774.
Varro, M. Terentius, his works on agriculture, 46.
Vegetable anatomy, 1278; external structure, 1279; internal structure, 1311.
Vegetable chemistry, 1365; compound products, 1369; simple. products, 1484.
Vegetable culture as derived from the study of the nature of vegetables, 1786.
Vegetable geography and history, 1687; geographi- cal distribution, 1688; physical distribution, 1689; civil distribution, 1727; picturesque distribution, 1756; systematic distribution,}1740; economical distribution, 1747; arithmetical distribution, 1758; distribution of the British flora, 1759.
Vegetable kingdom, study of, with a view to agri- culture, 1264; systematic botany, 1266; vegetable anatomy, 1278; vegetable chemistry, 1365; func-
GENERAL
tions of vegetables, 1485; vegetable pathology,
1638; vegetable geography and history, 1687; principles of vegetable culture, 1786.
Vegetable life, its character, 1623; counteraction of chemical affinity, 1623; excitability, 1624.
Vegetable nutrition, 1511; introsusception, 1512; ascent of the sap, 1513; motion of the sap, 1514; elaboration of the sap, 1523; descent of the sap when elaborated into proper juice, 1533.
Vegetable oils, 1407; fixed oils, 1408; fat oils, 1409; drying oils, 1414; volatile oils, 1419.
Vegetable physiology, or the functions of plants, 1485; germination of the seed, 1486; food of the vegetating plant, 1495; process of nutrition, 1511; development or growth, 1537; sexuality, 1589;
the species, 1606; checks to propagation, 1622;
a
Jegetable products, 1369; gum, 1369; sugar, 1372;
starch, 1374 salop, 1375; gluten, 1378; albumen,
1318; fibrina, 1381; extract, 1382; coloring mat-
ter, 1388; tannin, 1393; bitter principle, 1395; narcotic principle, 1396; acids, 1397; oils, 1407; wax, 1420; resin, 1427; rosin, 1428; pitch and tar, 1429; gum resins, 1446; myrrh, 1455; assa- fetida, 1456; balsams, 1457; camphor, 1463; caoutchouc, or India rubber, 1464; cork, 1465; wood, 1466; charcoal, 1468; sap, 1469; juices, 1470; virtues, 1471; ashes, 1472; alkalies, 1474; earths, 1476; other substances, 1483.
Vegetable poisons, 5794. a
Vegetables employed in human economy, their dis- tribution, 1747; bread corns, 1748; edible roots, 1749; oleraceous herbs, 1750; fruits, 1751; fruits of the East Indies, 1752; of China, 1753; of Africa, 1753; of South America, 1754; flowers, 1756; timber, 1757. i:
Vegetables of various kinds cultivated in China, 981.
Vegetables, their systematic distribution, 1740; plants of visible sexes, 1741; sexual parts indis- tinct, 1742; monocotyledonee, 1743; dicotyledo- ne, 1744; natural orders of Jussieu, 1745; uni- versal plants, 1746.
Vegetables, their natural decay or death, 1681; temporary organs, 1682; leaves, 1683; flowers, 1684; fruit, 1685; permanent organs, 1686. uss!
Vegetables, their diseases and casualties, 1638; wounds and accidents, 1639; diseases, 1652; na- tural decay, 1681.:
Vegetables, principles of preserving for future use, 1797.
Vegetables, their propagation, 1606; by seeds, 1608; by gems, 1613; bulbs, 1614; buds, 1615; leaves, 1616; runners, 1617; slips, 1618; layers, 1619; suckers, 1620; grafting and budding, 1621; causes limiting propagation, 1622.
Vegetables, their growth or development of parts,
1537; elementary organs, 1538; composite organs,
1540; annual shoots, 1541; root, 1542; pith, 1545;
_
wood, 1544; perennials, 1545; circulation of
juices, 1550; decomposite organs, 1551; anoma- lies of vegetable development, 1559. Vegetables as indicating the nature of the soils they
INDEX.
grow on, 2072; argillaceous, 2074; calcareous,
2075 5 siliceous, 2076; ferrugineous, 2077; peaty,
2078; saline, 2079; aquatic, 2080; very dry, 2081.
Vegetables, their sexuality, 1589; economy of aqua- tics, 1591.
Vegetation as influenced by the atmosphere, 2265; water, 2266; carbonic acid gas, 2270; oxygen and azote, 2274; gravity of the atmosphere, 2279; temperature, 2283; vapor, 2288; clouds, 2989 dew, 2297; rain, 2300; frost, 2306; hail, 23083 snow, 2309; ice, 2311; wind, 2313; thunder, 2322- lightning, 2328,:
Vegetation as influenced by weather, 2245; heat and light, 2246; electricity, 2260; water, 2263;
_solar rays, 2259.
Vegeto-animal matter, a term applied to one of the principal constituent parts of the farina or flour of some vegetable seeds. It is found in the largest proportion in grain, especially wheat, ex- isting in a state of mechanical mixture with mu- cilage or starch.
Vermueden, Sir C., his work on draining land, page 1163. A. D. 1642.
Veterinary operations on horses, 5861.
Veterinary pharmacopeia, 5879.
Villa of the Romans, 75; its division, 81.
Villages, their establishment on estates, 3573; Bride- kirk, 5575; village seaport, 5577.
Villages of Switzerland, 336.
Villeneuve, Comte Louis de, his work on agriculture, page 1175. A. D. 1819.
Vine, its culture in France, 407.
Vine, culture of, in Lombardy, 274; in Tuscany, 290,
Vine, culture of, in Austria, 614.
Vine, culture of, in Saxony, 597.
Vine, its culture in Spain, 707.
Vine, culture of, in Prussia, 579.
Vine, culture of, at the Cape of Good Hope, 1094.
Vine, culture of, in Madeira, 1123.
Vine, its culture in Switzerland, 337.
Vinet, Elie, his work on agriculture, page 1171. AY DP 1607-
Vineyards of Savoy, 361.
Vineyards of the Jews, 33.
Virgil, his poems respecting agriculture, 47.
Virgil, plough of, 112.
Virgilian husbandry, a term made use of by some authors to express that sort of husbandry, the
orecepts of which are so beautifully delivered in Jirgi’s Georgics. Formerly the husbandry in this country was Virgilian, as is shewn by the method of paring and burning the surface, of raf- tering or cross ploughing, and of the care in destroy- ing weeds, upon the same principle, and by much the same means. In those parts along the south- ern coast, where the Romans principally inha- bited, not only the practice, but the expressions, are in many respect the same with those of the ancient Romans; many of the terms used by the ploughmen being of Latin origin; and the same with those used by those people on the like occa- sions. Tull, who has established a new method of husbandry, observes, that it is upon the whole so contradictory to this old plan, that it may be called the antivirgilian husbandry, and that no practice can be worse than the Virgilian, 47. 112.
Virtues of plants, physiologically considered, 1471.
Vives, ives, or strangles, 5774.
Viviparous animals, 1938.
W.
Waggon of the Cape farmers, 1106.
Waggons, 2619; Gloucestershire waggon, 2621; Berkshire, 2622; Norfolk, 2623; Rood’s patent waggon, 2624.
Wales, agriculture of, from the fifth to the seven- teenth century, 197.
Wales, agricultural survey of, 7043; North Wales, 7044; South Wales, 7049. sy Walker, W., his_essay_on draining land, page 1170.
A. D. 1813.
Walking as a movement of the horse, 5990.
Wall, Richard, his dissertation on breeding horses, page 1165. A. D. 1768.
Wallflower, culture of, 5082.‘i
Walls, their influence in producing heat, 2256,
Walls, see Fences.
Walnut trees in Savoy, 359.
Warbles, 5820.
Ware, in irrigation, 4074.
\ \ i \ \
GENE
Wark, Dr. David, his work on agriculture, page 1164. A. D. 1761.
Warp, a slimy deposit let fall upon land by the sea tides in particular situations. The term is also sometimes applied to the ooze or slimy matter thrown up by the sea, 2148.
Warping, theory of its effects on soils, 2148.
Warping,#117; history and theory,"44 18; effects, 4119; season, 4121.
Warrens, rabbit, extent, stocking,&c., 6593.
Warts, 5821.
Warwickshire, agricultural survey of, 7012.
Wash, medicines used by veterinary practitioners, 5919.
Washing of sheep, 6441.
WW‘ashington, General George, his works on agricul- ture, page 1168. A. D. 1800.
Wasp, bee, and ant insects, 6904.
Waste lands, to improve,“41! 59; mountainous and hilly grounds, 4160; rocky surfac es, 4163; woody wastes, 4172; moors, 4181; peat mosses, bogs and morasses, 4183; marshes, 4197; downs and shore lands, 4203.
Water, its component parts, 2263; state of, in the atmosphere, 2266.
Water meadows of the Romans, 142.
Water meadows of Orcheston, 7031.
Water, to procure for live stock, 4127
Water, boring for, 4148.
Water, its decomposition by plants, 1532.
Water, its influence on the distribution of veget- ables, 1702.
Water, as an article of vegetable food, 1510.
Water for farm yard and domestic purposes, 4157.
Water melon(figured), of Egypt, 1057.
Water, to filtrate, 4158,
Waterford, agric ultural survey of, 7088.
Watering, 2911.
Watering arable lands, 4124.
Watering land by machinery, 4111; by sea water, 4112.
Watering machine for roads, 3494
Watery head in sheep, 6524.
Wax, from what plants obtained, manufactured, and used, 1420; butter of cacao, 1422; butter of cocoa, 1423; butter of nutmeg, 1424; tallow of croton, 1425; wax of myrtle, 1426.
Wax tree of the Chinese, 969.
Ww Seine a foal, 5977
Weasel, to destroy, 6852.
Weather and climate, their influence on veget- ation, 2245.
Weather, art of prognosticating, 2331; by the moon, 2334; barometer, 2340; hygrometer, 2354; pluviometer, 2360; thermometer, 2365; prece- dent, 2367.
Weather of Britain, study of, 2369,
Lee F. Bd., his work on agriculture, page 1176.
D. 1803.
Weider sheep, acastrated male, 6413
Weeding tools, 2593; pincers, or thistle drawers, 2394.
Weeding among the Romans, 139.
Weeding, 2904.
Weeds or plants relative weeds, rennial weeds, 55
Weighing mac Wns 2461; Weir’s, 2463; for sacks, 2464.
Weighing cage, 2461.
Weir’s improved cultivator, 25
Weir’s expanding bean dr il,
Weir’s manuring one row ee drill, 2560.
Weir’s improved hay or corn rake, 2 506.
Weld, or dyers’ wood, its culture and use, 5377. Wells, 4140; digging, 4141; steining, 4142; use
of the auger in well‘digging, 4144; raising water from, 41
Wells of China, 987.
Wells of Persia, Be.
Nelsh cattle, 61
West coast of ea ic ca, agriculture of, 1077.
West India islands, agriculture of, 1172; Cuba, 1173; Jamaica, 1174; other West India islands, 1200.
West Lothian, or Linlithgowshire, agricultural survey of, 7059.
West Riding of Yorkshire, agricultural survey of, 7020.
Western, C. C. Esq., M. P., his work on agriculture, page 171. A. D. 1824.
Westmeath, agricultural survey of, 70895.
Westmoreland, agricultural survey of, 7026
injurious in agriculture, 5538; re absolute weeds, 5540; pe-
9)
RAL INDEX. 1I25
Weston, Richard, Esq., his works on agriculture page 1165. A. D. 1769. 3
Wexford, agricultural survey of, 7078.
Wheat, culture of, 4599; species and varieties, 4601; soils, 4612; sowing, 4626; dibbling, 4630; har- vesting, 4636; produce, 4641; uses, 4644.
Wheat, culture of,in Flande rs, 454.
Wheat, culture of, in Egypt, 1053.
Wheat, dibbling of, in Norfolk, 7003.
Wheel barrow Sa 5, 2449,
Wheel ploughs, 2506; Scotch plough with wheels, 2507; Wilkie’s single horse wheel plough, 2 508 5 Beverston plough, 2512; Hampshire plough, 251. 3 Norfolk wheel plough, 2516; paring plough, 2517; draining ploughs, 2518.
Wheels, relatively to the wear of roads, 3474.
Whey, 6380.
Whim, a flow moss so called, improvement of, 7052.
Whin, or furze, culture of, 5076.
WwW hinstone,; 3 3390.
Whipping out grain, 2965.
Whirlbone strains, 5830.
White, Stephen, M. A., his work on bees, page 1164 ALD 156:
White, Rev. Andrew, and Duncan Macfarlane, De their work on agriculture, page 1170. A. D
811.
White beet, culture of, in Flanders, 469,
White beet, or mangold wiirzel, culture of, 4‘
Wicket gates, 2869; see Gates.
Wicklow, agricultural survey of, 7077.
Wiegaud, J., his work on agriculture, page 1176.
AMD 1162s Wight, Andrew, his work on agriculture, page 1165. A. D. 1778
Wild boar, 6531.
Wild breed of cattle, 6130.
Wild men and women of Malacca, 938.
Wild pine apple, a hedge plant of the West Indies, 1196.
Wildman, Thomas, his treatise on bees, page 1165. A. D. 1768. Wilkie’s horse hoe and drill plough, 25 Wilkie’s horse hoe and drill harrow, 2543, Wilkie’s wheel plough, 2508. Willey, Andrew, professional turnip sower in Northumberland, 7024. Williams, T. W., his farmer’s law book, page 1170. A. D. 1819. Williamson, Captain ena, his work on agricul- ture, page 1170. A. D. 1810. Wiltshire, agricultural survey of, 7030; South Wiltshire, 7331; North W iltshire, 7 1032. Wind, theory of, 9313. WwW ind broken in pneumonia, 5789. Wind colic in sheep, 6511. Winnowing corn among the Romans, 137. Winnowing machine, 9459, Winter, George, his w york on agriculture, page 1166. Ave reli Sic Wire worm, or crane fly, Tipula, 6907. 6921. Visset Robert, Esq., his treatise on hemp, page 1169. A. D. 1804 Woad, culture of, in Flanders, 483. Woburn dairy, 6999, fig. 775. Wood or w oody fibre, physiologically considered, 1466. Wood, its culture and management, 5364. Wood louse, Oniscus, 6919. Woodlands, 3627. 3629. Woodlands and forests of Flanders Woods and forests in Switzerland, 33° Woods and plantations of Dumbartonshire, 7057. Woods and plantations, judicious management_of, in Derbyshire, 7014. Woods and plantations of Cheshire, 7028. Woods and plantations of Aberdeenshire, 7066. Woods and plantations of Perthshire, 7063. Woodward, or land reeve, 4276. Woody wastes, to improve, 4172. Wool, its nature and properties, 1815. Nool shears, 2409. Wore estershire, agricultural survey of, 7007. Working horne a cattle, 6125. Working classes, amelioration of, in Sutherland, 7070. Working classes, education of, in Devonshire, 7038. Worlidge, John, his work on agriculture, page 1169. A. D. 1669. Worm tribes injurious in agriculture, 6921; slug, 6922; snail, 6922. Worm under the horn, a disease in sheep, 6524.
)
92 0.
) Worms, common, to destroy, 6922,
a a a
1226 GENERAL INDEX.
Worms in horses, 5809.
Worms in sheep, 6527.
Worms subjected to cultivation, 6821; leech, 6845; edible snail, 6843,
Worms in use as food by the Chinese, 944.
Wornalls or puckeridge in cattle, 6274.
Wounds and accidents of vegetables, 1639; inci- sions, 1640; boring, 1641; girdling, 1642; frac- ture, 1643; pruning, 1644; grafting, 1645; filling, 1646; destruction of buds, 1647; of leaves, 1648; decortication, 1649.
Wounds in horses, treatment of, 5862.
Wright, Sir James, Bart., his work on agriculture, page 1167. A. D. 1796.
Wright, Rev. Thomas, his work on agriculture page 1166. A. D. 1789.
3
2 ene
Yam, Dioscorea sativa, culture of, 1193.
Yarrow, culture of, in Derbyshire, 7014.
Yellows, or liver disease, 5810.
Yellows in cattle, 6268; hot, 6261.
Yeoman, a term applied to the first or highest de- gree of plebeians in this country. The yeomen are properly freeholders, and such as cultivate
their own lands. This useful and important class of society has been within these few years con- siderably lessened, 7172.
Yoking draught animals, 2997.
Yorkshire, agricultural survey of, 7019.
Young, Arthur, F.R.S., his works on agriculture, page 1164. A. D. 1767.
Young, David, his work on agriculture, page 1166. A. D. 1786.
Yvart, A. Victor, his works on agriculture, page 1175. A. D. 1819.
Z.
Zea mays, or India corn, its culture, 4734.
Zetland and Orkney cattle, 6123.
Zehmens, Capt. H. Adj. Von., his work on agricul- ture, page 1176. A. D. 1796.
Zeigerus, Antoine, his work on agriculture, page 1175.- A. D. 1738.
Zizania aquatica(figured), or Canadian millet, its culture, 4732.
Zizyphus lotus, culture of, in Tripoli, 1067.
Zizyphus paliurus(figured), a hedge plant in Italy 265.
Zoology, 1801; see Animals.
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THE END.
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