MAP oka portion of WESTERN NORTH AMERICA 
SHOWING THE DISTRIBUTION OF VEGETATION WITH 
REFERENCE TO THE MULTIPLICATION OF AND MEANS OF SUBDUING THE 
ROCKY MOUNTAIN LOCUST. 
Prepared underthe direction of the U.S.Eiitcjimdlogical Com mission 
By Henry (laimelt E.Njf. 
1879. Map I. 
SOUTH EASTERN SECTION 
