Farm. _Since it is so difficult to bring our strong Land into Tilth, after it has rested, that it cannot be speedily done by a Plough without a Coulter, or by one with a Coulter, in wet Weather or dry, nor with a Breast-plough, without a certain Expence, and an uncertain Success, the Spade is too chargeable a Tillage for the Field: It seems to me, upon the Whole, that we are Losers by this_ inaratæ gratia terræ, _unless we could contrive some other Method of reducing it sooner, and with less Charge, into Tilth; for I observe, that, when we sow it upon the Back, the Corn and Grass (or Couch), coming both together, exhaust the Ground so much, that by that time we can (which is about Three Years) reduce the great Lumps to a tolerable Fineness, it grows full of Grass and Weeds (which we call Foul), and loses that Fertility we expected it should acquire by Rest, becoming, in our Terms, both out of Tilth, and out of Heart._ _Resp._ If you know all this to be true, and that without a Coulter you cannot break it up at all; and that with one Coulter you cannot any way cut the Furrow small enough, or less than Ten Inches broad; why do not you cut it with Four Coulters, which will reduce the same Furrow into Four equal Parts, of Two Inches and an half each in Breadth, and of the Depth of the Staple, tho’ that should be Two Spit, or Sixteen Inches deep? Farm. _How can that be done?_ _Resp._ Every jot as easily as with one Coulter: For, before the Furrow is raised by the Share, it lies fast, and makes a sufficient Resistance equally against the Edges of all the Coulters; tho’, after it be raised and loose, it yields and recedes every way, except downwards; so that it cannot be cut by any Edge, but such as attacks it perpendicularly from above, as that of the Spade does. Farm. _This seems to me reasonable; and, having very lately heard talk of this Plough, I would gladly know more of it._