C 274 ] 



About fcwcn years fince I made a comparative 

 experiment of this kind on a field of ten acres, the 

 foil of which was equal as poflible in goodnefs. 

 The one half of this field I left, after ploughing, 

 in its rough ftate, the furface being covered with 

 large hard clods. The other half I made as fine 

 as poflible by harrowing with ox harrows, and 

 beating in pieces the hardeft and largefl clods 

 which the harrow would not break. 



In the fpring, the part I had harrowed was much 

 finer, without any additional labour, than I could 

 render the other (which was left in its rough ftate) 

 by repeated harrowings ; for the rain and the froft 

 not having penetrated the middle of the large 

 clods, they had received no benefit therefrom, 

 and were as hard as bricks, being only lefTened 

 in fize. 



I fowed the whole field with barley the laft 

 week in April, and threw nine pounds of broad 

 clover in with it. On harvefting it, I kept the 

 crops feparate: The part left rough produced 

 twenty-four bufhels per acre; the other thirty- 

 one; the Jatter by much the fineft fample. The 

 crop of clover next year was equally in favour of 

 the method I am recommending-* being heavier by 

 near half a ton per acre. 



The, 



