me. 5S. DEPARTMENT OF AGRICULTURE.  - 
* BUREAU OF ENTOMOLOGY—BULLETIN No. 59. 
L. O. HOWARD, Entomologist and Chief of Bureau. 
PROLIFERATION 
AS A FACTOR IN THE NATURAL CONTROL 
OF THE 
MEXICAN COTTON BOLL WEEVIL. 
BY 
Wok EB INDS,-Phy De, 
In Charge of Cotton Boll Weevil Laboratory. 
IssueD Avucust 27, 1906. 
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WASHINGTON: 
GOVERNMENT PRINTING OFFICE 
1906. 
