UNIVERSITY OF WISCONSIN 
COLLEGE OF AGRICULTURE 
 
MADISON. WISCONSiN 
DEPARTMENT OF ECONOMIC ENTOMOLOGY 
February 12, 1940 
 
Professor Aldo Leopold 
Old Entomology Building 
Dear Professor Leopold: 
I am enclosing a copy of my manuscript entitled, "Effeot of 
Arsenic as used in Poisoning Grasshoppers upon Pheasants". This is 
an extra copy which you may retain if you wish. After you have had 
an opportunity to read it, I would appreciate having a discussion with 
you on this work. 
This paper was presented at the A.A.A.*S. meetings at Columbus, 
Ohio, in December and will, I believe, be printed in the Journal of 
Economic Entomology during the next few months. Mr. W. F. Grimmer has 
seen this manuscript and wishes to republish the major portion of it in 
the conservation bulletin. 
Very truly yours. 
 
H. Lilly 
 
V