DEPARTMENT OF THE INTERIOR. 
SECOND REPORT 
OF THE 
UNITED STATES 
ENTOMOLOGICAL COMMISSION 
FOR 
THE YEARS 1878 AND 1879, 
RELATING TO THE 
ROOKY MOUNTAIN LOCUST, 
AND THE 
WESTERN CRICKET 
AND TREATING OF 
THE BEST MEANS OF SUBDUING THE LOCUST IN ITS PERMANENT BREEDING 
GROUNDS, WITH A VIEW OF PREVENTING ITS MIGRATIONS INTO THE 
MORE FERTILE PORTIONS OF THE TRANS-MISSISSIPPI COUNTRY, 
IN PURSUANCE OF APPROPRIATIONS MADE BY 
CONGRESS FOR THIS PURPOSE, 
WITH 
MAPS AND ILLUSTRATIONS. 
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WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1880. 
