MANURE. 45 



use but one, which is drawn by oxen ; but in 

 England three or four of these are frequently 

 chained together, and drawn by two OP more 

 horses ; they produce a great effect in cutting, 

 crumbling, and levelling the clods, which are 

 also, in some cases, further broken down by 

 the action of a ponderous wooden roller. 



But the utmost skill in the performance of 

 these mechanical processes will not ensure a 

 good return, unless the master's management 

 be also good. As the husbandman needs food 

 and rest, so does the soil, where the kind of 

 produce called a crop is expected. The food 

 of land is MANURE ; its rest is laying it down 

 either for feeding, or A FALLOW. 



Manure consists of various animal, vegetable, 

 and mineral substances, selected according to 

 the soil and the intended crop. With respect 

 to animals, there is no part of them which does 



