TREATING OF CONTRIVANCE 



you would have the level run, or at least where you 

 think by your eye it fall most conveniently, to make 

 it contain it self, and the more easy to be levelled: 

 also set up several stakes in the intervals and cross- 

 wayes through the plot from opposite angles, and 

 by viewing betwixt the f oresaid nails every way, 

 marke all the stakes level ; but if you cannot see 

 themarkesof this supposed level which are on these 

 corner stakes, seeing there may be some below the 

 ground, little hills, or some such obstructions lying 

 in the way, then measure equally upon each of them, 

 so f arr as you think convenient for getting your 

 sight, and mind to take down the same again after 

 viewing. 



When all is marked with this supposed level, go 

 over it, and note narrowly how it will agree, and 

 so, as your reason shall teach you to alter, you may 

 take up one end or let down the other, or both, till 

 you bring it to such a proportion, as to do its own 

 business it self. Or you may work more exactly 

 thus : 



Suppose youhaveabordure,or middle of awalke, 

 with sixteen stakes driven therein at twenty foot 

 distance, all marked with a supposed level, and 

 ten of these markes above ground, and six under 



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