﻿MAP 
  op 
  a 
  portion 
  op 
  WESTERN 
  NORTH 
  AMERICA 
  

  

  SHOWING 
  THE 
  DISTRIBUTION 
  OF 
  VEGETATION 
  WITH 
  

   REFERENCE 
  TO 
  THE 
  MULTIPLICATION 
  OF 
  AND 
  MEANS 
  OF 
  SUBDUING 
  THE 
  

   ROCKY 
  MOUNTAIN 
  LOCUST. 
  

   Prepared 
  under 
  the 
  direct 
  ion 
  of 
  the 
  U.S. 
  Entomological 
  Commission 
  

   By 
  Henry 
  Gaimett 
  E.M. 
  

  

  J 
  

  

  Probable 
  Breeding 
  Grounds 
  

  

  (trass 
  -covered. 
  Ktisilv 
  burned. 
  

  

  Forest 
  Land. 
  Sage 
  I 
  and 
  and 
  semi- 
  desert 
  . 
  Desert. 
  

  

  Not 
  easely 
  "burned. 
  

  

  