Issued October 10, 1907. 



U. S. DEPARTMENT OF AGRICULTURE 



BIOLOGICAL SURVEY— BULLETIN No. 29 



C. HART MERRIAM, Chief 



THE RELATION OF BIRDS TO THE 

 COTTON BOLL WEEVIL 



BY 



ARTHUR H. HOWELL 



ASSISTANT BIOLOGIST, BIOLOGICAL SURVEY 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1907 



