STATE OF CALIFORNIA— RESOURCES AGENCY RONALD REAGAN, Governor AIR RESOURCES BOARD 1108 FOURTEENTH STREET SACRAMENTO 95814 Board Members December 16 ' 1970 A. J. HAAGEN-SMIT, Ph.D., Chairman DAVID S. ADAMS JOSEPH F. BOYLE, M.D. MRS, CHARLES EDWARD CHAPEL ROBERT C. COZENS JERRY W. FIELDER JOHN G. HOLMES WILLARD F. LIBBY, Ph.D. Dr. Joshua Lederberg SOHN G. MILES Professor of Genetics LOUIS F, SAYLOR, M.D. : WALTER R. SCHMID Stanford Medical School GERAID A. SHEARIN Palo Alto, California JAMES G, STEARNS e HAROLD SULLIVAN Executive Officer JOHN A. MAGA Dear Dr. Lederberg: I would like to express my appreciation and thanks for your testimony on air guality standards for lead before the recent meeting of the Air Resources Board. I realize this required a special effort on your part because of your busy schedule. Your statement was objective, unemotional, and well-delivered. It was a major factor in tipping the balance towards adoption of the standards. Thank you again and best wishes for a happy holiday and prosperous New Year. A. d. cc: Dr. Rodney Beard