Of the Coulter. E57 acing on the plough, tending to change its direction. This mult be op- poſed by the continual influence of the pioughman, or by the form of ſome c- ther part of the plough, which fhall give it a contrary tendency. The firſt method is evidently improper. The ſe- cond is no leſ? ſo, becauſe, though theſe contrary tendencies may balance each other, they both increaſe the la- bour of the cattle. It may be objeâted to this reaſoning, that by making the land ſide of the coulter in the ſame plane with the land ſide of the plough, or parallel to it, the coulter itſelf will be preſſed in towards the land, by the reſiſtance of îts furrow fide. This is true, but 1s, in. general, compenſated by the firmneſs of the ground on the

land