James D.Ebert, Chairman, Carnegie Institution of Washington

Robert W.Berliner, Yale University School of Medicine

Frederick H.Bormann, Yale University

Theodore H.Bullock, University of California, San Diego

Robert H.Burris, University of Wisconsin

Donald S.Frederickson (ex officio), National Academy of Sciences

George K.Hirst, Public Health Research Institute of the City of New York, Inc.

Henry S.Kaplan, Stanford University Medical Center

Donald Kennedy, Stanford University

George B.Koelle, University of Pennsylvania School of Medicine

Estella Leopold, U.S. Geological Survey, Denver

Paul A.Marks, College of Physicians and Surgeons, Columbia University

Maclyn McCarty, Rockefeller University

Ray D.Owen, California Institute of Technology

Elizabeth S.Russell, The Jackson Laboratory, Bar Harbor

Nevin S.Scrimshaw, Massachusetts Institute of Technology

Emil L.Smith, University of California School of Medicine, Los Angeles

George F.Sprague, University of Illinois, Urbana

Kenneth V.Thimann, University of California, Santa Cruz

H.Garrison Wilkes, University of Massachusetts-Boston

James B.Wyngaarden, Duke University Medical Center

Thomas J.Kennedy, Jr., Executive Director

John Redmond, Jr., Staff Officer