| L | ÿ C£CT:] SE Le y LL 4(à. T a. EC pe 20 IMBILICAL VESSELS,: Cr: ILE Ag: j U for 1l I S LE L'ILE dt will Li ment( THE UMBILICAL VESSELS OF. SEEDS AND BUDS. C for 1ts t y- Q sance” RE 4 pee 2 re 4 Se, 4 To 1. 1. Seeds&re_. al Of spring like eges. Some feeds and eggs contain wo kinds|| o@ nourifbment, Jeeds and fpauwm À Jfb contain but one kind of nourifh- lei Ÿ (l’ 7.. A.. e o| ment. 2. Air-bag in Ep£s, tn Jome fruits; not in feeds, ner in Jpawn. vitell 3- Veffels tmprope rly called umbilicel; tbofe pr roperly called umbilical confift of ab-| clufl Jorbents, and a placental ar{ery+. ein. Seed embryon and chick Levin their till: growib by tbe ation of their abforbents. 4. Seminal roots RG Grew, and chorion man 1 J 7. chick of Molpighi, are re, Re Ogans. 5. În wbat the chick differs from Ga ; ae tbe feed-embryon. Nothing is found in Jeeds fimiler to tbe yolk of the exg. IX. 1. Buds| and bulbs are a paternel 0 GE Pring; exaëtly refemble their parents. Have um- PE bilical veffels, in wbich tbe Jap-juice riles 1n the bring. Why the bark is then(TION eafily feparated from the aiburnum. 3- Sugar in tbe Jep-juice exiffs in tbe albur- ace! #um, and in roots. Dry rot of timber owing to fermentation. WW by lower Branches j Arft pullulate. à. Sap afcends not by capiilary attraéion, but by the irritative wh énotons, of abforbent veffels. of vegetable irritability. A0 for bent vef- fan ai fels fometines aff as capillary fyphons, and as capillary tubes.: ose vel ne: got Sels coalefce. W. by trees do not bled in Jumimer. 6. Umbilicol v els of buds ie e; RS. e| an thofe of feeds. Pofféfs air- vefleis like thofe of the chick. Buds, lite‘ess. ipar a ate
from the parent; their umbilical véffels improperly called placental ones, as the,| pr
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convey nutriment; bence Dlants become dwa: fs if the cotyledons of the feed are de- jet us Birch-trees die if fineared witb oil or Pich. 7. Refervoir of rubriment 1 n tbe alburnum of trees, and in the roots Of biennial plants. Experiment of boiling ton: : alburnum and fe menting the liquor. As buds are formed at midfummer, they d may then be tranfblanted by inoculation, but in tb, Joring muft be in: erafted, and à grow by inofcu lation Po veÿels, like inflamed parts f animals. 8. A paufe in: vege cation at midjummer. New umbilical Veffels af in autumn, and the bark fepa- 1 cafily as in fpring. Honey-der, Sap-juice riles in winter occafionelly both in EVEF= tm
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