DEPARTMENT OF THE INTERIOR. 
TJ. S. GEOLOGICAL AND GEOGRArHICAL SUKVET OF THE TERRITORIES. 
F. V. HAYDEN, IN CHARGE. 
BULLETIN 
OF 
THE UNITED STATES " 
EiNTOMOLOGICAL COMMISSION 
DESTRUCTION OF THE YOUNG OR UNFLEDGED LOCUSTS. 
]sro. 1. 
WASHINGTON . 
GOVERNMENT PRINTING OFFICE. 
1 8 7 7. 
