194 



DR. DAUBENY ON THE ROTATION OF CROPS, ETC. 



Year. 



Permanent crop. Dried in the sun. 



Shifting crop. Dried in the sun. 



1836. 



1837. 



1838. 



1839. 



1840. 



1841. 



1842. 



1843. 



1844. 



No. 17. 

 46-5 



27-75 



34-0 

 34-0 

 20-5 

 33-3 

 23-7 

 30-0 

 21-5 



Average of nine years . . 30*13 



Average of first five years 32*55 



Average of last four years 27*12 



Maximum in one year . 46*50 



Minimum in one year . . 20*50 



After Trifolium pratense. 

 52*5 



After Brassica Rapa. 

 22*5 



After Brassica Rapa, 

 32*5 



After Hordeum sativum. 

 42*5 



None. 



None. 



After Beta vulgaris. 

 53*0 



After Polygonum fagopyrum. 

 39*5 



After Brassica Rapa. 

 37*6 



Average of four years . . 30*0 

 Maximum in one year . . 52*5 

 Minimum in one year . . 22*5 



