PRESIDENT’S SCIENCE ADVISORY COMMITTEE 
Chairman 
Dr. DonaLp F. Hornie 
Special Assistant to the President for Science and Technology 
Vice Chairman 
Dr. HERBERT F. York, JR. 
Professor of Physics 
University of California, San Diego 
Dr. Ivan L. BENNETT, JR. 
Johns Hopkins Hospital 
Dr. Lewis M. BRANSCOMB 
Chairman 
Joint Institute for Laboratory Astro- 
physics 
Dr. MELVIN CALVIN 
Professor of Chemistry 
University of California, Berkeley 
Dr. SIDNEY D. DRELL 
Stanford Linear Accelerator Center 
Dr. Marvin L. GOLDBERGER 
Professor of Physics 
Palmer Physical Laboratory 
Princeton University 
Dr. PHILIP HANDLER 
Chairman 
Department of Biochemistry 
Duke University Medical Center 
Mr. WILLIAM R. HEWLETT 
President 
Hewlett-Packard Company 
Dr. FRANKLIN A. LONG 
Vice President for Research and Ad- 
vanced Studies 
Cornell University 
Dr. Gorpon J. F. MACDONALD 
Chairman, Department of Planetary 
and Space Physics 
Institute of Geophysics and Planetary 
Physics 
University of California, Los Angeles 
Dr. WILLIAM D. McELRoy 
Chairman 
Department of Biology 
The Johns Hopkins University 
Dr. GEORGE HE. PAKE 
Provost 
Washington University 
Dr. JOHN R. PIERCE 
Executive Director, Research 
Communications Sciences Division 
Bell Telephone Laboratories 
Dr. KENNETH §8. PITZER 
President 
Rice University 
Dr. FREDERICK SEITZ 
President 
National Academy of Sciences 
Dr. CHARLES P. SLICHTER 
Department of Physics 
University of Illinois 
Dr. CHARLES H. TOWNES 
Provost 
Massachusetts Institute of Technology 
III 
