MAY 4 1972 2101 CONSTITUTION AVENUE CABLE ADDRESS: NARECO WASHINGTON, D.C. 20418 WASHINGTON, D. c. NATIONAL ACADEMY OF SCIENCES NATIONAL RESEARCH COUNCIL OF THE UNITED STATES OF AMERICA SPACE SCIENCE BOARD May 2, 1972 Dr. Joshua Lederberg Genetics Department School of Medicine Stanford University Stanford, California 94305 Dear Dr. Lederberg: We are revising the organization and structure of the Space Science Board to make it more representative of the tasks and duties which the Board performs, and to provide the regular rotation of advisory group membership which has become a stated policy of the National Academy of Sciences. Hence, it seems appropriate now to drop the designation of yourself and other persons who have for some time been as- sociated with the Board as "Consultants" to the Board. The Nation has surely benefited from the substantial efforts and wisdom you and your fellow Consultants have pro- vided as former members of the Board in guiding our national Space program. On behalf of the Board I wish to express our warm thanks and appreciation. While the official title "Consultant" is being dropped, we hope that the Board may still on occasion enlist your assistance. Sincerely, _ fo C a } eucerws - Charles H. Townes Chairman CHT: kh