124 



mVTCH EXPEKIMEXT STATION. 



[Jan. 



Effect of Leguminous Crops upon the Folloiving Crop (^Pounds'). 



1 Dry beans and straw. 



Curve shotving liclation of Average No-nitrogen to Average Nitrogen 

 Plots, the Latter being considered in Each Year 100. 



[Per cent, average no-nitrogen to avei'age nitrogen.] 



