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1 
“§ 
‘ 
BUREAU OF ENTOMOLOGY—BULLETIN No. 91. 
L. Oo. HOWARD, Entomologist and Chief of Bureau. 
--_-:U.S. DEPARTMENT OF AGRICULTURE, 
~ 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 
~ L. O. HOWARD, CB 
fs ES ee 
Chief, Bureau of Entomology, vi S 
R a @ RY ~ ¥ 
4 AUGS Sh 
AND 
W. F, FISKE, 
In Charge, Gipsy Moth Parasite Laborator 
Melrose Highlands, Mass. 
IssteD JuLy 29, 1911. 
alsin 
aint 
AN atti? Po eae 
slate? 
WE _ 
WTS - 
~~ 
Wiitessss>” 
WASHINGTON : 
GOVERNMENT PRINTING OFFICE. 
1911. 
U 3, Departinent of Agsicales 
Nan Oe tA. 
aed ened ae: AP Ne nai OL oil 
