SECRETARY'S REPORT IX 



Institute of Social Anthropology. — G. M. Foster, Jr., Director^', Gordok 



R. WiLLET, Acting Director. 

 River Basin Surveys. — Frank H. H. Roberts, Jr., Director. 



INTERNATIONAL EXCHANGE SERVICE 



Chief. — D. G. Williams. 



NATIONAL ZOOLOGICAL PARK 



Director. — William M. Mann. 

 Assistant Director. — Ernest P. Walker. 

 Head Keeper. — Frank 0. Lowe. 



ASTROPHYSICAL OBSERVATORY 



Director. — Loyal B. Aldrich. 



Assistant librarian. — Marjorie R. Kunze. 



Division of Astrophysical Research: 



Chief. — William H. Hoover. 



Instrument makers. — Andrev? Kramer, D. G. Talbert, J. H. Harrison. 



Research associate. — Charles G. Abbot. 

 Division of Radiation and Organisms: 



Chief.— R. B. Withrow. 



Plant physiologist. — Leonard Price. 



Biological aide {botany). — V. B. Elstad. 



NATIONAL AIR MUSEUM 

 Advisory Board: 



Alexander Wetmore, Chairman. 



Lt. Gen. K. B. Wolfe, U. S. Air Force. 



Rear Adm. A. M. Pride, U. S. Navy. 



Grover Loening. 



William B. Stout. 

 Assistant to the Secretary for the National Air Museum. — Carl W. Mitman. 

 Curator. — P. E. Career. 



Associate curators. — S. L. Beers, R. C. Strobell, W. M. Male. 

 Exhibits preparator. — S. L. Potter. 



CANAL ZONE BIOLOGICAL AREA 



Resident Manager. — James Zetek. 



' In absentia as of Jane 30, 1960. 



