AS) Of the Coulter.

turn them to the furrow, and thus the ploughis expoſedto two contrary ſtrains, the coulcer turning it to the land, and the ſock turning it to the furrow. Al- though theſe ſtrains may be made to balance each other, they cauſe an ad- ditional reſiſtance to the plough, and labour to the cattle. Alſo, when the ſpace between the points of the coulterc and ſock is conſiderable, no roots which are between them can bc cut by the fea- ther, but they muſt be torn by the clod, or left behind. There is alſo a piece of the ground, at the corner of each furrow-ſlice, which, not being cut, is broken of, and not raiſed up, and this is the corner, which it is moſt neceílary to raiſe, being the new ſoil. It fre-

guently happens too, that, by not cut-

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