Chap. XIX. Tbe Fcur-coulterd Plough. 293 

 Box C, turning round both therein, and in the 

 Wheels ; the Two Crow-ftaves D, D, faftened into 

 the Box perpendicularly, and having in each Two 

 Rows of Holes, whereby to raiie or link the Beam, 

 by pinning up or down the Pillow E, to increafe or 

 diminifh the Depth of the Furrow ; the Gallows F, 

 thro' which the Crow-ftaves pafs at top, by Mortifes, 

 into which they are pinned ; G the Wilds with its 

 Links and Crooks of Iron, whereby the whole Plough 

 is drawn ; H the Two-chain, which faftens the 

 Plough-tail to the Plough-head, by the Collar I at one 

 End, and by the other End pafllng thro' a Hole in the 

 Middle of the Box, is pinned in by the Stake K ; 

 L the Bridle-chain, one End whereof is faftened to the 

 Beam by a Pin, and the other End to the Top of the 

 Stake, which Stake is held up to the left Crow-ftafF, 

 by the With M, palling round it above, and under 

 the End of the Gallows below ; or inftead of this 

 With, by a Piece of Cord, and fometimes by the 

 End of the Bridle-chain, when that is long enough. 



The Plough-tail confifts of the Beam N : the Coul- 

 ter O; the Share P •, and the Sheat Q^ the Hinder- 

 Jfheat R, pafting thro 5 the Beam near its End-, S the 

 fhort Handle, faftened to the Top of the Hinder- 

 fheat by a Pin, and to the Top of the Sheat by an- 

 other Pin -, T the Drock which belongs to the right 

 Side of the Plough-tail, and whereto the Ground- 

 wrift V is faften'd ; as is the Earth-board, whofe 

 Fore-part W is feen before the Sheat; and alfo the 

 long Handle X, whofe Fore-part Y appears before the 

 Sheat, and is faften'd to the Drock by a Pin at a 9 the 

 other End of which Pin goes into the Beam. Z is 

 the double Retch, which holds up the Sheat, arid 

 pafTes through the Beam to be faften'd by its Screws 

 and Nuts at b and c. 



But without intrenching much farther upon the 

 common Piough-wrighi's Art, whole Trade is his 

 Living, I'll haften to fhew the necellary Difference 



U 3 there 



