Chap. XXI. Of the Wheat-Brill 55 ? 



Thefe Beams muft be fet at fuch a Diftance from 

 one another, that the Shares may be Fifteen Inches 

 afunder from the Infide of one to the Outfide of the 

 other. 



To try whether all thefe Sheats and Shares are truly- 

 placed, fetthe Plough upon a level Surface; and then, 

 if they be right, the Fore-fhare will touch the Surface 

 by its Point and Tail, and likewife the hinder Sheats 

 will do the fame ;'• except that fome Workmen will 

 have it, that the Plough goes better, when the Tails 

 of the hinder Sheats are a Barley-corn's Thicknefs 

 higher than their Points ; and then their Tails will 

 want fo much of touching the Surface. 



The Shares muft be all of them parallel to the 

 Beams, and confequently to one another. 



The Chanel made by the fore Share and Sheat for 

 the middle Row, being at equal Diftance between the 

 Two hinder Sheats, is covered by them, they raifing 

 the Mould over the Seed from each Side of this 

 Chanel. 



The Harrow I is drawn by the Beams, to which 

 it is fattened to their Infides ztd and e, having each a 

 fmali Iron Pin, paffing thro' each End of the Legs of 

 the Harrow, and thro' the Beams -, each having a Nut 

 on the Outfides of the Beams, and being fquare in 

 the Beams, that they may not turn therein to loofen 

 their Nuts ; but are round near their Heads, that the 

 Harrow may eafily move thereon. 



The round Ends of the Legs of the Harrow are 

 put thro' its Head I, at the round Holes / and g - 9 

 and pinned in behind it, to the end that either Tine 

 of the Harrow may defcend at the fame time that the 

 other riles, where the Ground is uneven. 



The Two wooden Tines K and L are pinned in 

 above the Head, and have each of them a Shoulder 

 underneath. They ftand Hoping •, fo that if they take 

 hold of any Clods, they do not drive them before 

 them, but rife over them, They are of a convenient 



Length, 



