- LIBRARY 
8C4TE PLANT BOARD 
library 
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THE INSECT PEST SURVEY 
BULLETIN 
Volume 21 March 1, 1941 Number 1 
BUREAU OF 
ENTOMOLOGY AND PLANT QUARANTINE 
U N I T ED S T A T E S 
department of agriculture 
AND 
THE STATE ENTOMOLOGICAL 
AGENCIES COOPERATING 
