UNITED STATES DEPARTMENT OF AGRICULTURE 
FO REST SERVICE 
CENTRAL STATES FOREST EXPERIMENT STATION 
ADDRESS REPLY TO 
DIRECTOR                                            OHIO STATE UNIVERSITY

AND REFER TO                                                 COLUMBUS, OHIO

R - CS 
Z                                                     X&y 5, 1951 
Mr. Aldo Leopold, 
Game Survey, 
404 University Ave. 
Madison, Wis. 
Dear Leopolds 
McCarthy has referred your correspondence of April 28 to me 
for an answer. I know of no specific references giving information 
on the success or failure in using trees or other tgetation as 
snowbreaks along roads or railroads. It is my impression that the 
agricultural experiment stations of Montana, South Dakota, and 
Wyoming are more active than others in experimenting with various 
kinds of trees for windbreak purposes. I am endeavoring to secure 
copies of such publications as they have issued and in case I find 
any references to such use of tree growth, I shall inform you of it. 
The copy of "A Game Survey of the North Central States" is 
received. I am very much impressed by the sise of the report which 
you have made on this territory. Although I have not yet had a 
chance to read it, I am looking forward with a great deal of antici- 
pation to reading it at my first opportunity. 
Again thanking you, I am 
Very truly yours, 
L. F. Kellogg 
Associatb Silviculturi st