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20 AGRICULTURAL SURVEY

amply ſecured by various contrivances, in preventing the|(f eq 2dmiſſion of the ſprings into the deep working. nortl

The number of works twenty-ſix. The owners of the merli freehold from whence the coal is raiſed generally receive an| Th eighth of the groſs receipt of fale; but, to encourage the(nd ti proprietors to greater depths of working, have occaſionally he ext complied with a proportionable reduction of this quota, on| Boys: account of the increaſed expences in working; whereby they id have derived a profit from coal, which otherwiſe would have adopt been irrecoverably loſt, Some, through ignorance and ſub- 1e p bornnels, have withheld this conceſſion, and thereby incurred is e the lois. M

Average price of coal five-pence per buſhel at the pit, a (nine gallons meaſure.) n

The Southern diſtri is on a more limited fcale of work- de ing. The ſtrata of coal form an inclination of the plane i from eighteen to thirty inches in the yard; in ſome the| plane is annihilated, and they deſcend in a perpendicular e direction.‘There are in number twenty-five; in thickneſs|| from ſix inches to ſeven feet; ſeldom worked under eighteen| À inches; in depth from thirty to ſixty fathoms at the preſent| A working. By the ſteam-engines, which are now ereding Äs in this diſtrict, a much greater depth will be attained. Pro- E fits in the aggregate of working very trifling, if any, awing: to the conſumption of timber, and the expence of drawing Le water. The coal of various quality; ſome nearly equal to Y 4 that of the northern diſtri; but the greateſt part leſs firm, E. 4 of ſhorter grain, and leſs calculated for diſtant carriage; but 2 free to burn, wholly diveſted of ſulphureous fench, and du- 4 rable. The ſmall coal excellent for the forge, and when Z

reduced to a cinder, called cote, by a proceſs of very ancient uſage, it furniſhes a fuel for drying malt, which, from its purity and total excmption from ſmoke, cannot be excelled,

49 3 # y

— Ags,

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