a Wil n the ſock.

more

ed at

Of te Coulter. 42 Tock may, at the ſame time, receive a fhock from the ſame, or another ſtone. The chance of theſe ſhocks is therefore double; and if the ſtone is ſtruck by both at once, ît is not turned alide, as it would be if ſtruck only by onc of them, but muſt be carried forward be- fore the plough, through the firm ground. For all theſe reaſons, the con- ſtruction is fill preferable; but, as the

coulter is liable to theſe ſhocks, I have

ſtrengthened it by a ſtay of iron, repre-

ſented by HF, fig. 1. This is on the land ſide of the coulter, and turns on 2 bolt through the coulter at F, and paſles through the cye of a bolt I, which paſ: íes through the beam. The upper part, H I of the ſtay is ſcrewed, and the nur which turns on it ſupports the ſtay, and

lle