U. S. DFPARTMFNT OF AGRICULTURE. 



BUREAU OF ENTOMOLOGY BULLETIN No. 59. 



L. O. HOWARD, Entomologist and Chief of Bureau. 



I 



PROLIFEKATION 



AS A FACTOR IN THE NATURAL CONTROL 



<)K ruK 



MEXICAN (^OTTON IU)TJ. WEEVIL. 



W. K. HTNDS, Ph. D., 



T„ rh.n;,.' ,.r <\,/h,n Ilo/l UWril I .,1 /, 



Issued August 27, lOOfi. 



WASHINGTON: 



GOVERNMENT rKINTINC OKKI 



I '.mm; 



IC^lo^Xl 



