Bui. 51, Bureau of Entomology, U, S. Dept. of Agriculture. 



Plate XXIII. 



Gin Tests. Cotton Grown by Cultural Methods. 



Fig. 91, Testing passage of weevils through gin: a, Seed collection; 6, mote collection; 

 fig. 92, gin breast opened, showing spaces through which weevils pass with seed: fig. 

 93, cotton field yielding one bale per acre, grown by cultural methods in weevil ter- 

 ritory — (original). 



