﻿MAP 
  

  

  OWING 
  THE 
  DISTRIBUTION 
  

  

  of 
  the 
  

  

  OI]S 
  T 
  WORM 
  

  

  (ISOSOMA 
  HORDED 
  

   A.S.PACK.AR1J 
  Jk. 
  

  

  rea 
  most 
  devastated 
  

   Limits 
  of 
  Wheat 
  culti- 
  

   ation 
  in 
  eastern 
  U. 
  S. 
  

  

  Scale 
  of 
  StatuW 
  :Miles 
  

   SO 
  100 
  150 
  200 
  2S0 
  aUU 
  KO 
  40O 
  

  

  Eus^ell 
  i; 
  SUutbers.X.Y. 
  

  

  