Bu;. 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: b, mote collection; 

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

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

 ritory — (original). 



