OUTLINE OF WORK AGAINST CHINCH BUG. 15 
In comparing the First Annual Report of Dr. Snow for 1891 with 
the last one for 1896, we find statements which would lead us to 
believe that the artificial distribution of the disease had at least the 
hinch bugs sent out in 1910 by the University of 
(Original. ) 
sted area. 
Kansas to the different counties in the infe 
Fic. 1.—Map of Kansas showing the number of packages of diseased ec 
effect of increasing the amount of Sporotrichum, even if we doubted 
its first introduction into Kansas in the nineties. 
In the report of 1891 we read: 
It must be remembered that these contagious diseases of the chinch bug are 
naturally present in certain  ortions of the Mississippi basin during every 
10944°—Bull. 107—11 2 
