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moved, and hardly ever thrown upon the 

 fiirface to wither; but clean, {hallow, 

 ploughing diflodges, and deftroys them 

 much more efFedlually. Nay hand-hoeing 

 is allowed by every body, to do more tO" 

 wards cleaning land than a ploughing. 

 And even the pernicious pra6tice of burn^ 

 baking, which I have juft fpoken of, ef- 

 fectually cleans land, though it only goes 

 two inches deep. This feems to {hew, 

 that very deep ploughing is by no means 

 neceifary, towards cleaning land; and it 

 muft be univerfally allowed, that the 

 longer we keep our manure within three, 

 or four, inches of the furface, the better; 

 efpecially upon a light foil, from which 

 jt js apt to fink, and efcapc too foon. 



With refpcd: to the fort of plough 

 which merits preference, there is none 

 which can, perhaps, be univcrfally re- 

 commended. 3ut upon all fandy, or 



Joamv- 



