THE STATE COLLEGE OF" WASHINGTON                    U') 
PULLMAN, WASHINGTON 
Augrt 5, 1942 
Lear Mr. Leopold, 
The letter which I wrote to Doctor  radley was aoout the 
mice population experiment. One of the problems I face is 
finding some way to measure the animals on the experimental 
and control areas. Weight fluctuates and is so bound up 
with so many factors as to be rough at oest. Several 
yeasr ago Loctor Bradley suggested zomp poopibilities anr I wantP4 
Qcyy- fntthpr cr-. 
OC,' of the ideas that see.,s feasible ic activity measurement. 
Several ye;-ars ago a paper in the Journal of Mammialogy gave 
a method for studying activity on areas by use of electrical 
contacts and recording drams. Dice at Michigan studied activity 
by using a trea4-wheel hooked up to a recording drum. 
I agree that Elton's book is a darn good job. The thing that 
struck me first was his relegating Dice's very great work on 
census techniques to an inferior place. As I remember the 
passage, Dice's work was passed over as merely an elaboration 
of an linglishmsn's method. The latter's work (as cited) came 
out several years after Dices and wasa two page note. It 
didn't strike me as a fair way of treating Dice's work. 
I don't know whether or not I mentioned it, out I received a 
boost inalary tnis year. 
Yocom's thesis on the Hungarian in the Palouse Region of 
Washington has been accepted by Icological Monographs, and it 
will appear in the April 1943 number. It is a darn good paper. 
I would call it a better Master's thesis on the Hun than 
teatter's was a Doctor's thesis,...jist for comparison. 
Y ur    cerely, 
Leonard Wing