NOTICE: The National Academy of Sciences was established in 1863 by Act of Congress as a private, nonprofit, self-governing membership corporation for the furtherance of science and technology for the general welfare. The terms of its charter require the National Academy of Sciences to advise the federal government upon request within its fields of competence. Under this corporate charter, the National Academy of Engineering and the Institute of Medicine were established in 1964 and 1970, respectively.
The Committee on Science, Engineering, and Public Policy is a joint committee of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. It includes members of the councils of all three bodies.
Library of Congress Catalog Card Number 82–62183
International Standard Book Number 0-309-03332-2
NATIONAL ACADEMY PRESS
2101 Constitution Avenue, N.W. Washington, D.C. 20418
Printed in the United States of America
First Printing, October 1982
Second Printing, October 1982
Third Printing, November 1982
Fourth Printing, April 1983
Fifth Printing, January 1984