Members of Symposium 
H. Koprowski 
Director, The Wistar Institute Philadelphia, Professor of Microbiology, 
Graduate School of Arts and Sciences; Professor of Research Medicine, 
University of Pennsylvania, since 1957. 
Research Assistant, Department of Experimental Pathology, University 
of Warsaw, 1937-39; Staff, Yellow Fever Research Service, Rio de 
Janeiro, 1941-44; Staff and Assistant Director, Viral and Rickettsial 
Research Division, Lederle Laboratories, Pearl River, N.Y., 1944-57. 
President, New York Academy of Sciences, 1959. Alvarenga Prize of 
College of Physicians of Philadelphia, 1959. Consultant: World Health 
Organization. 
Publications on virus infections, cancer, immune reactions and cellular 
transformations. 
J. LEDERBERG 
Professor of Genetics and Biology, School of Medicine, Stanford Univer- 
sity, Palo Alto, since 1959. 
Assistant Prof. of Genetics, University of Wisconsin, 1947-50; Assoc. 
Prof., 1950-54, Prof., 1954. Organized Department of Medical Genetics, 
1957, Chairman, 1957-58. Visiting Prof. of Bacteriology, University of 
California, Berkeley, 1950; Fulbright Visiting Prof. of Bacteriology, 
Melbourne University, 1957. Organized Department of Genetics, Stan- 
ford University Medical School and was appointed Professor and 
Executive Head, 1959. Awarded Nobel Prize for Medicine, 1958. 
Publications on microbial genetics, immunology and exobiology. 
F. A. LIPMANN 
Member and Professor of Rockefeller Institute, New York, since 1957. 
Research Assistant Kaiser Wilhelm Institute, Berlin and Heidelberg, 
1927-31; Research Fellow, Rockefeller Institute for Medical Research, 
New York, 1931-32; Research Associate, Biological Institute of Carlsberg 
Foundation, Copenhagen, 1932-39; Research Associate, Department of 
Biochemistry, Cornell Medical School, New York, 1939-41; Head, 
Biochemical Research Laboratory, Massachusetts General Hospital, 
Boston, 1941-57; Associate, Harvard Medical School, 1946-49; Professor 
of Biological Chemistry, 1949-57. Member of National Academy of 
Sciences (Washington); Fellow Danish Royal Academy of Sciences; 
Foreign Member Royal Society (London) 1962. 
Publications on metabolic energy conversions, discovery and identifica- 
tion of coenzyme A as group carrier in carboxylic acid metabolism, 
sulphate activation, and protein synthesis. 
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