PHILLIP A. GRIFFITHS (Chair), Director,

Institute for Advanced Study

BRUCE M. ALBERTS,* President,

National Academy of Sciences

WILLIAM F. BRINKMAN, Vice President,

Physical Sciences Research, AT&T Bell Laboratories

DAVID R. CHALLONER, Vice President of Health Affairs,

University of Florida

ELLIS B. COWLING, University Distinguished Professor At-Large,

North Carolina State University

GERALD P. DINNEEN, Retired Vice President,

Science and Technology, Honeywell, Inc.

ALEXANDER H. FLAX, Consultant,

Potomac, Maryland

RALPH E. GOMORY, President,

Alfred P. Sloan Foundation

M.R.C. GREENWOOD, Dean,

Graduate Studies, and

Vice Provost,

Academic Outreach, University of California, Davis

RUBY P. HEARN, Vice President,

The Robert Wood Johnson Foundation

MARIAN KOSHLAND, Professor of Immunology,

Department of Molecular and Cell Biology, University of California, Berkeley

THOMAS D. LARSON, Consultant,

Lemont, Pennsylvania

HAROLD LIEBOWITZ,* President,

National Academy of Engineering

DANIEL L. McFADDEN, Director,

Department of Economics, University of California, Berkeley

MARY J. OSBORN, Head,

Department of Microbiology, University of Connecticut Health Center

KENNETH I. SHINE,* President,

Institute of Medicine

MORRIS TANENBAUM, Vice President,

National Academy of Engineering

WILLIAM JULIUS WILSON, Lucy Flower University Professor of Sociology and Public Policy,

University of Chicago

LAWRENCE E. McCRAY, Executive Director