LIST OF THOSE ATTENDING OR PARTICIPATING IN THE SYMPOSIUM I qyy ADAMS, M. H., New York University College of Medicine, New York ALLEN, PAUL J., University of Wisconsin, Madison, Wisconsin ALTENBURC, EDGAR J., The Rice Institute, Houston, Texas ANDERSON, THOMAS F., University of Pennsylvania, Philadelphia, Pennsylvania ARBOGAST, RACHEL, Carnegie Institution of Washington, Cold Spring Harbor, New York ASHESHOV, IGOR N., University of Western Ontario, London, Ontario AVERY, OSWALD T., Hospital of the Rockefeller Institute for Medical Research, New York BAILEY, WILLIAM, JR., Vanderbilt University, Nashville, Tennessee BATY, WILTON E., Huntington High School, Huntington, New York BEDWELL, EVELYN M. P., Strangeways Research Laboratory, Cambridge, England - BERNHEIMER, ALAN W., New York University College of Medicine, New York BERNTON, HORACE W., Harvard University, Cambridge, Massachusetts BERTIU, J., National Public Health Service, Santiago, Chile BODENSTEIN, DIETRICH, Edgewood Arsenal, Maryland BONNER, DAVID, School of Biological Sciences, Stanford University, California. Present address: Osbom Botanical Laboratory, Yale University, New Haven, Connecticut - BROWN, GEORGE B., Sloan-Kettering Institute for Cancer Research, New York - BRYSON, VERNON, Biological Laboratory, Cold Spring Harbor, New York BUNTING, MARY I., Bethany, Connecticut BURKHOLDER, PAUL R., Yale University, New Haven, Connecticut BUSCHKE, WILLIAM H., Johns Hopkins Hospital, Baltimore, Maryland BUSH, M. T., Vanderbilt University School of Medicine, Nashville, Tennessee CARLSON, J. GORDON, National Institute of Health, Bethesda, Maryland CASON, LOUISE, Medical College of Alabama, Birmingham, Alabama CLAUDE, ALBERT, The Rockefeller Institute for Medical Research, New York - COHEN, SEYMOUR S., University of Pennsylvania, Philadelphia, Pennsylvania _ * CORNMAN, IVOR, Sloan-Kettering Institute for Cancer Research, New York +d - DAVIS, BERNARD D., United States Public Health Service, The Rockefeller Institute for Medical Research, New York DELBR~~CK, MAX, Vanderbilt University, Nashville, Tennessee DEMEREC, M., Carnegie Institution of Washington, and Biological Laboratory, Cold Spring Harbor, New York DE TOMASI, J. A., Cold Spring Harbor, New York DIENES, L., Massachusetts General Hospital, Boston, Massachusetts DIPPELL, RUTH, Indiana University, Bloomington, Indiana - DOERMANN, A. H., Vanderbilt University, Nashville, Tennessee DUBOS, RENE J., The Rockefeller Institute for Medical Research, New York DULANEY, E. L., Merck & Company, Rahway, New Jersey DUBASH, J., Memorial Hospital, New York DURYEE, WILLIAM R., National Research Council, Washington, D.C. EMERSON, RALPH, University of California, Berkeley, California EMMONS, C. W., Division of Infectious Diseases, National Institute of Health, Bethesda, Maryland EPHRUSSI, BORIS, University of Paris, Paris, France FANO, U., Carnegie Institution of Washington, Cold Spring Harbor, New York FOSTER, RUTH, University of Texas, Austin, Texas o FRIEDENWALD, JONAS S., Johns Hopkins Hospital, Baltimore, Maryland [ vii ] . . . VII1 LIST OF PARTICIPANTS FROLAY, ALEXANDER, Chas. Pfizer & Company, Brooklyn, New York GABY, W. L., Bristol Laboratories, Syracuse, New York GAFFRON, HANS, University of Chicago, Chicago, Illinois GAsI&, G., Biological Institute, National University of Chile, Santiago, Chile GEY, GEORGE O., Johns Hopkins Hospital, Baltimore, Maryland -GILEs, NORMAN H., JR., Yale University, New Haven, Connecticut - GLASS, BENTLEY, Goucher College, Baltimore, Maryland GOPAL-AYENGER, A., Barnard Skin & Cancer Hospital, St. Louis, Missouri HAGFORS, BIRGIT, Washington University, St. Louis, Missouri -HASKINS, CARYL P., Haskins Laboratories, New York HERRIOTT, ROGER M., The Rockefeller Institute for Medical Research, Princeton, New Jersey HERSHEY, A. D., Washington University School of Medicine, St. Louis, Missouri HOLLAENDER, A., Industrial Hygiene Research Laboratory, National Institute of Health, Bethesda, Maryland - HOTCHKISS, ROLLIN D., The Rockefeller Institute for Medical Research, New York ) HUTNER, S. H., Haskins Laboratories, New York JOHNSON, GARTH, Ortho Research Foundation, Linden, New Jersey JOHNSON, T., Dominion Rust Research Laboratory, Winnipeg, Canada KAHN, MARTIN D., Washington University, St. Louis, Missouri KAUFMANN, B. P., Carnegie Institution of Washington, Cold Spring Harbor, New York KAUFFMANN, F., State Serum Institute, Copenhagen, Denmark KIDD, JOHN G., Department of Pathology, Cornell University Medical College, and New York Hospital, New York KIMBALL, R. F., Johns Hopkins Hospital, Baltimore, Maryland - KLEIN, MORTON, University of Pennsylvania, Philadelphia, Pennsylvania (fl ) rev. 5 KRAMER, M. D., Washington University, St. Louis, Missouri KUFFERBERG, AL- B., Ortho Research Foundation, Linden, New Jersey LATARJET, RAYMOND, Institut Pasteur, Paris, France LEDERBERG, JOSHUA, Osborn Botanical Laboratory, Yale University, New Haven, Connecticut LEW, MILTON, New York University College of Medicine,#New York LINDEGREN, CARL C., The Henry Shaw School of Botany, Washington University, St. Louis, Missouri LINDEGREN, GERTRUDE, The Henry Shaw School of Botany, Washington University, St. Louis, Missouri LURIA, S. E., Carnegie Institution of Washington, Cold Spring Harbor, New York, and Indiana Univer- sity, Bloomington, Indiana LWOFF, ANDRE, Institut Pasteur, Paris, France MCCLINTOCK, BARBARA, Carnegie Institution of Washington, Cold Spring Harbor, New York MACDOWELL, E. CARLETON~ Carnegie Institution of Washington, Cold Spring Harbor, New York MARGARETTEN, PHYLLIS, Perth Amboy, New Jersey v MAYR, ERNST, The American Museum of Natural History, New York MCCARTY, MACLYN, Hospital of the Rockefeller Institute for Medical Research, New York MCCORMICK, NANCY, Carnegie Institution of Washington, Cold Spring Harbor, New York MELLON, RALPH, Western Pennsylvania Hospital, Pittsburgh, Pennsylvania MICHAELIS, L., The Rockefeller Institute for Medical Research, New York MILLER, ELIZABETH, The Rockefeller Institute for Medical Research, New York -MILLER, J. J., Dominion Laboratory of Plant Pathology, St. Catherines, Ontario, Canada MILLER, RICHARD A., Carnegie Institution of Washington, Cold Spring Harbor, New York MONOD, J., Institut Pasteur, Paris, France MUIR, ROBERT D., Bristol Laboratories, Syracuse, New York ORMSBEE, RICHARD A., Memorial Hospital, New York - PAPPENHEIMER, A. M., JR., New York University, New York LIST OF PARTICIPANTS ix -PERKINS, DAVID D., Columbia University, New York FILLIPS, FAITH, Vanderbilt University, Nashville, Tennessee PIRIE, N. W., Rothamsted Experimental Station, Harpenden, England FPITTENDRIGH, C. S., Columbia University, New York PLOUGH, HAROLD H., Amherst College, Amherst, Massachusetts PONTECORVO, GTJIDO, Department of Genetics, The University, Glasgow, Scotland PREER, JOHN R., Indiana University, Bloomington, Indiana RACKER, E., New York University, New York RANTIEN, JOHN B., Chas. Pfizer & Company, Brooklyn, New York RASETTI, F., Lava1 University, Quebec, Canada REESE, ELWYN T., J. T. Baker Chemical Company, Phillipsburg, New Jersey REINER, JOHN M., Washington University, St. Louis, Missouri RHOADES, M. M., Columbia University, New York RICHARDS, OSCAR W., Research Division, American Optical Company, Buffalo, New York /RIs, HANS, The Rockefeller Institute for Medical Research, New York RYAN, FRANCIS J., Columbia University, New York SCHNEIDER, HOWARD, The Rockefeller Institute for Medical Research, New York SCHNEIDER, LILLIAN K., Columbia University, New York - SHAPIRO, ARTHUR, 30 Schermerhorn Street, Brooklyn, New York SIGURGEIRSSON, THORB JORN, The Rockefeller Institute for Medical Research, Princeton, New Jersey SKOOG, FOLKE, Washington University, St. Louis, Missouri SONNEBORN, T. M., Indiana University, Bloomington, Indiana SPIEGELMAN, S., Department of Bacteriology, Washington University School of Medicine, St. Louis, Missouri STANLEY, W. M., The Rockefeller Institute for Medical Research, Princeton, New Jersq STARR, MORTIMER P., Brooklyn College, Brooklyn, New York STARR, PHOEBE B., Stanford University, California -,STEINITZ, LOTTI, Heyden Chemical Company, Brooklyn, New York STEPHENS, S. G., Carnegie Institution of Washington, Cold Spring Harbor, New York STERN, CURT, University of Rochester, Rochester, New York STOCK, C. C., Memorial Hospital, New York STFCEISINGER, GEORGE, Cornell University, Ithaca, New York SUSSMAN, H., Washington University, St. Louis, Missouri SWANSON, C. P., Johns Hopkins University, Baltimore, Maryland SWANSTRON, MARMA, Biological Laboratory, Cold Spring Harbor, New York TATUM, E. L., Osborn Botanical Laboratory, Yale University, New Haven, Connecticut TAYLOR, HARRIET E., The Rockefeller Institute for Medical Research, New York TAYLOR, PATSEY J., Carnegie Institution of Washington, Cold Spring Harbor, New York TREXLER, P. C., University of Notre Dame, Notre Dame, Indiana VAN NIEL, C. B., Hopkins Marine Station, Stanford University, Pacific Grove, California WHITE, M. J. D., University College, London, England - WITKIN, EVELYN M., Carnegie Institution of Washington, Cold Spring Harbor, New York WOLLMAN, S. H., Sloan-Kettering Institute for Cancer Research, New York WOODRUFF, H. B., Merck Company, Inc., Rahway, New Jersey ZAMENHOFF, S., Columbia University, New York ZELLE, MAX', National Institute of Health, Bethesda, Maryland ZIMMER, ESTHER M., Stanford University, California