AAAS officers, committees, and representatives for 1973.

David Blackwell (1972), University of California, Berkeley Richard H. Bolt (1972), Bolt Beranek and Newman, Inc., Cambridge, Massachusetts Lewis M. Branscomb (1973), National Bureau of Standards, Washington, D.C. Barry Commoner (1974), Washington University, St. Louis, Missouri Caryl P. Haskins (1974), Carnegie Institution of Washington, Washington, D.C. Phyllis V. Parkins (1973), BioSciences -Information Service, Philadelphia, Pennsylvania Leonard M. Rieser (1971), Dartmouth College, Hanover, New Hampshire Kenneth V. Thimann (1971), University of California, Santa Cruz William T. Golden, ex officio, 40 Wall Street, New York William Bevan, ex officio, AAAS