TELEPFFHE, ExEcuTivE 8100 
 
 
    CAnLE ADDRtSS 
NARECO, WVashingtor'. D. C. 
 
 
      NATIONAL RESEARCH COUNCIL 
      2101 CONSTITUTION AVENUE, WASHINGTON 25, D. C. 
 
         Established in 1916 by the National Academy of Sciences under its
Congressional 
             Charter and organized with the cooperation of the National Scientific

                    and Technical Societies of the United States 
                          10 April 1946 
 
 
 
 
 
 
Dr. Robert F. Griggs 
 
Division of Biology and Agriculture 
 
Dear Dr. Griggs: 
 
 
           Dr. Harrison has approved 
William J. P. Aberg as a member of 
craft vs. Wilderness. 
 
 
the appointment of Mr. 
the Committee on Air- 
 
 
Sincerely yours,