SOME RULES FOR POISONING 

 THE COTTON BOLL WEEVIL 



B. R. COAD and T. P. CASSIDY 



LTNITED STATES DEPARTMENT OF AGRICULTLTIE 

 DEPARTMENT CIRCULAR 162 



Contribution from the Bureau of Entomology 

 L. O. HOWARD, Chief 



Washington, D. C. January, 1021. 



WASHINGTON- : GOVERNMENT PRINTING OFFICE : 1921 



