I50 



I have pleasure in acknowledging the valuable assistance rendered 

 by Messrs. N. B. Keeney & Son, bean and pea specialists, of Le Roy, 

 N. Y. ; the cooperation of the Bureau of Plant Industr}- , Depart- 

 ment of Agriculture, Washington, D. C, and the Storrs Agricul- 

 tural Experiment Station of Connecticut ; and finally, the painstaking 

 manner in which the author of the pamphlet carried to a satis- 

 factory conclusion the investigation itself. 



JOHN CRAIG. 



