LETTER OF SUBMITTAL. 
United States Department of Agriculture, 
Division of Entomology, 
Washington, I). C, March 28, 1891. 
Sir: I have the honor to submit for publication Bulletin No. 25 of 
this Division, being 1 a consideration of a few of the commoner and more 
destructive locusts of the United States, together with the best remedies 
to be used against them. 
Kespectfully, 
C. V. Riley, 
Entomologist. 
ITon. J. M. Eusk, 
Secretary of Agriculture. 
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