Bui. 108, U. S. Dept. of Agriculture. 



Plate VII. 



Fig. 1.— Effect of Salicylic Aldehyde on Cowpeas in the Field. 



Cowpeas 

 Untreated Salicylic aldehyde 



Fig. 2.— Yield of Cowpeas, Vine and Pod, on Check Plot b and on Salicylic 

 Aldehyde Treated Plot. 



