January 9, 1946 
 
 
 
Dr. Ross G. Harriasn, Chainmian 
National oe3oarch Council 
vlashiington, D.C. 
 
Dear Doctor Harrison: 
 
            Aldo Leopold, Chairiaan of the Co:Xnittee on Aircraft 
vs. *;ilderness Areas has asked that Yie accept hlj .resignation 
from the a~sigrment, duclu to an overburaen of work. 
            I have uritten to Ulaus  UrLO askifng hia to take 
over the Chairmn-ship of the Cittee. 
 
            Do you approve this appointment? 
 
                              Very truly yours, 
 
 
 
                              Robert F. Gris, Chair. n 
 
                              Division zf Biology and Agriculture