THE PRODUCE NOT IN PROPORTION TO THE MANURE. 203 



Produce, per Saxon acre, of the fields dressed with farm-yard 

 manure. 



Increase fiy farm-yard manure over unmanured plots. (See p. 186.) 



Here, again, what strikes us first is that the returns 

 from all the fields were different from one another, and 

 that apparently they did not bear the most remote rela- 

 tion to the quantity of manure applied. 



Nothing can be more certain than the fact that a 

 field, exhausted by cultivation, will yield larger returns 

 if dressed with farm-yard manure than if unmanured : 



* The clover crop failed from excessive wet. 



