CENTER FOR FAMILY PLANNING PROGRAM DEVELOPMENT The Technical Assistance Division of Planned Parenthood-World Population 066 Fifth Avenue, New York, N.Y. 10019 (212) 752-2100 Planned Parenthood World Population Chairman Jerome H. Holland, Ph.D. Chairman Executive Committee Joseph D. Beasley, M.D. President Alan F. Guttmacher, M.D. Chief Executive Officer Paul H. Todd, Jr. CENTER FOR FAMILY PLANNING PROGRAM DEVELOPMENT Director Frederick S. Jaffe NATIONAL ADVISORY COUNCIL Chairman Joseph D. Beasley, M.D. Gerald S. Bernstein, M.D. Lisle C. Carter, Jr. Elizabeth B. Connell, M.D. Leslie Corsa, Jr., M.D. James R. Dumpson John G. Feild Raymond Fink, Ph.D. Moye W. Freymann, M.D. Jack R. Goldberg, Ed.D. William Gorham Murray Grant, M.D. Donald Harting, M.D. Louis M. Hellman, M.D. John L. S. Holloman, Jr., M.D. Bruce Jessup, M.D. Guy R. Justis W. Newton Long, M.D. Norman V. Lourie Joseph P Martin, M.D. Frank W. Notestein Edward O'Rourke, M.D. Alvin H. Pelavin Gordon W. Perkin, M.D. Nora Piore William H. Robinson Seymour L. Romney, M.D. George Rosen, M.D. Donald P. Swartz, M.D. Howard C. Taylor, Jr., M.D. Christopher Tietze, M.D. Marta Valle D Richard Wenner Charles F. Westoff, Ph.D. Samuel M. Wishik, M.D. Alonzo S. Yerby, M.D. Professor Joshua Lederberg Department of Genetics School of Medicine Stanford University Stanford, California Dear Dr. Lederberg: April 7, 1970 Thank you for sending a copy of your March 21 column and for its evidence of your interest in the report on the Tydings hearings! We'll be pleased to keep you on the Perspectives list. FSJ/rb cc: CFPPD Senior Staff Alan F. Guttmacher Al Perez John Robbins a C sieeve Frederick S. satel) / Director / j