U.S) DEPARTMENT OF AGRICULTURE, 
BUREAU OF ENTOMOLOGY—BULLETIN No. 91. 
L. O. HCWARD, Entomologis: and Chief of Bureau. 
THE IMPORTATION INTO THE UNITED STATES 
OF THE PARASITES OF THE GIPSY MOTH 
AND THE BROWN-TAIL MOTH: 
A REPORT OF PROGRESS, WITH SOME CONSIDERATION OF 
PREVIOUS AND CONCURRENT EFFORTS OF THIS KIND. 
BY 
Ee OS TOWARD, 
Chief, Lurecu of Entomology, 
AND 
W. F. FISKE, 
* In Charge, Gipsy Moth Parasite Laboratory, 
Melrose Iiijhiands, Mass. 
Issuep Juty 29, 1911. 
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WASHINGTON : 
GOVERNMENT PRINTING OFFICE 
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