188 



DR. DAUBENY ON THE ROTATION OF CROPS, ETC. 



The following diagram may convey a clearer idea of the differences in the amount 

 of the crops, and the relation between the permanent and shifting one. 



Potatoes. 



140 

 130 

 120 



no 



100 



90 



Permanent " 

 Shifting... - 

 80 



70 

 60 

 50 

 40 

 



>lbs. 



