ee 1018 LIST OF PARTICIPANTS National Institutes of Health Bethesda, Md. LINDENBAUM, Arthur Division of Biological and Medical Research Argonne National Laboratory Argonne, Ill. ROSARIO, Ben Northwestern University Medical School Chicago, II, *RUGH, Roberts Radiclogical Research Laboratory Columbia Univ orsity New York, N. Y. MAWHINNEY,B.8. Radiation Research Laboratory University of Iowa Iowa City, Iowa SHARP, Joseph C, Division of Laboratories and Research New York State Department of Health Albany, N. Y. MAY, Harold Argonne National Laboratory Argonne, Ill. SNYDER, Walter Health Physics Division Oak Ridge National Laboratory Oak Ridge, Tenn. MAYES, Mary G. Southwestern Radiological Health STANNARD, J. N, School of Medicine and Dentistry University of Rochester Rochester, N. Y. MINAMISAWA, Takeru National Institute of Radiological Sciences Chiba-Shi, Japan TAMPLIN,A. R. NOAH,R. F. van der SMISSEN, E. Southwestern Radiological Health Laboratory U.S. Public Health Service Las Vegas, Nev. Laboratory Public Health Service Las Vegas, Nev. U. S. Department of Agriculture Riverton, Wyo, PALMITER,C. C. Federal Radiation Council Washington, D. C. Lawrence Radiation Laboratory University of California Livermore, Calif. WILSON, William U.S, Air Force Kirtland Air Force Base Albuquerque, N. Mex, ROBERTS, Joan M. University of Detroit Detroit, Mich. ROBISON,William L, Lawrence Radiation Laboratory University of California Livermore, Calif, * YAMAZAKI, J. N, “ University of Californla—Los Angeles Medical Center Los Angeles, Callf, Battelle-Northwest Laboratory AMSTER, Robert L. BAIR, W. J. CATT,D. L. CLARKE, W. Jd. CRAIG, D. K. CROSS, F, T. *Session chairman. DILLEY, J. V. FOSTER,R. F. FRAZIER,M, E. HESS,J. 0. HONSTEAD,J. F, HORSTMAN,V. G. HOWARD, E. B, HUNGATE, F. P. KILLINGSTAD, N. Kay KORNBERG, H. A. MANZEL,D. B. PARK, J. F.