Map I. 
MIDDIE WESTERN SECTION 
MAP <» a portion of WESTERN XOKTII AMERICA 
S H OWING THE DISTRIBUTION OF VEGETATION WITH 
REFERENCE TO THE MULTIPLICATION OFAND MEANS OF SUBDUING THE 
ROCKY MOUNTAIN LOCUST. 
Prep'ared under the direction of the U.S. Entomological Coin mission 
By Henry Gannett E.M. 
la?!). 
WHITE 
RIVER 
w ^::;! ; ; i ' ; >lateau 
LORADO 
Probable Breeding Grounds 
Grass -covered. Easily burned. 
Pore si Land. Sage Land and semi - desert . Desert. 
Not easery burned, 
