Committees for the Meetings 
American Association for the Advancement of Science Planning 
Committee 
Chairman: 
Gitsert F. Wuite, President, Haverford College; United States mem- 
ber of the UNESCO Advisory Committee on Arid Zone Research 
Watiace W. Arwoop, Jr., Director of the International Division, 
National Academy of Sciences—National Research Council 
Joun A. BEeHNKE, Associate Administrative Secretary, American As- 
sociation for the Advancement of Science 
Peter C. DutsBerG, Southwestern Irrigated Cotton Growers Associa- 
tion and Desert Products Company; Chairman of the Committee 
on Desert and Arid Zone Research of the Southwestern and Rocky 
Mountain Division of the AAAS 
Gove Hampipce, Regional Representative, Food and Agriculture 
Organization of the United Nations 
GeorceE R. Puixitps, Soil Conservationist, Soil Conservation Service, 
U. S. Department of Agriculture 
Water M. Rupotpu, Assistant to the Science Advisor, Office of the 
Science Advisor, U. S. Department of State 
Exvin C. Straxman, Emeritus Professor of Plant Pathology, University 
of Minnesota, St. Paul, Minnesota 
E. C. Sunpertin, Deputy Director, National Science Foundation 
Hersert Tuo, Chief Climatologist, U. S. Weather Bureau 
Dart Wo tre, Executive Officer, American Association for the Ad- 
vancement of Science, ex officio 
Conference Committee 
Chairman: 
Gitsert F. Wuire, President, Haverford College, Haverford, Pennsyl- 
vania 
Georces AusBeEert, Chef du Service des Sols de l’Office de la Recherche 
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