400 Of the Hoe-Plough, &c. Chap. XXIII. 



But, inftead of turning the Plank, it would be 

 better to have a Fourth Hole in the Beam, ftanding 

 as near to the hinder Hole as H doth to the fore 

 Hole ; to anfwer which Fourth Hole, there may be 

 Two Holes in the Plank, one at each Side of the hin- 

 der Hole of every Syftem at proper Diftances, to fet 

 the Plough ftill at more different Angles with the 

 Plank ; and thefe, I believe, will be more conveni- 

 ent for the Purpofe than the different Holes in the 

 fore Part of the Plank, it being eafier to remove the 

 hinder Screw than the fore Screw; becaufe if the 

 Plank and Limbers are not held up by fomebody, 

 whilft the fore Pin is out, their Weight will wrench 

 out the hinder Hole of the Plank by that Screw; but 

 whilft the hinder Screw is out, there is no need of hold- 

 ing up the Plank, becaufe its Weight, bearing upon 

 the Beam, cannot injure the foremoft Hole, whilft the 

 Limbers bear upon the Horfe. Upon this account, 

 I wonder we had not made the Holes, for changing 

 the Pofition of the Beam, at the hinder Part of the 

 Plank rather than the fore Part; which convinces me, 

 that new Inftruments are feidom perfect in the Be- 

 ginning. 



We can alfo alter the Standing of the Beam, by 

 cutting away the Wood on one Side of an Hole, and 

 placing a Wedge on the oppofite Side of the Pin. 



The Holder may make fome Alteration in the 

 Going of the Plough by the Handles. 



The Reafon we never fet the Beam on the right 

 Half of the Plank is, that the Plough always turns 

 its Furrow towards the Right-hand ; and the ftrait 

 Side of the Share and the Coulter never go fo near 

 to a Row on the Right-hand, by the Breadth of Two 

 Furrows, as it does to a Row on the Left-hand. 



If by the Drawing of the fore Horfe or Horfes, 

 the Plough fhould bear too hard upon the Thiller, it 

 may be helped by making a Row of Holes near the 

 hinder Side of the Plank, for the Draw-pin, inftead 



of 



