PRACTICAL TREATISE 



O F 



HUSBANDRY. 



PART IV. 



Of the Injlruments peculiar to^ or ufeful in, the 

 NEW HUSBANDRY. 



CHAP. I. 

 Of PLOUGHS. 



~'X'r^3 -^^ 



N our account of the experiments in 1750, we 

 advifed, fays M. Duhamel, making the lirft 

 trials of the new hulbandry, on fmall pieces of 

 ground, in order to acquire by degrees a know- 

 ledge of many circumftances, which, though 

 they may feem of little confequence, are, in re- 

 ality, of great importance. If thofe experiments 

 had been made at once on large tradts of land,_ 



any bad fuccefs at firft fetting out, might have difcouragcd people 



from making farther trials. 



We 



