American Association for the Advancement of Science (1963-64); American Philosophical Society (1964); American Physical Society (1955); Ashby, Eric (1962); Associated Universities (1947, 1949, 1951); Bainbridge, K[enneth] T. (1954); Barker, E.F. (1955); Bohr, Aage (1957); Boyer, M.B. (1952); Bradbury, N[orris] E. (1950-51); Bragg, W[illiam] L. (1957); Breit, Gregory (1955); Bretscher, E. (1956); Bronk, Detlev W. (1956-57); Brookhaven National Laboratory (1948, 1953, 1955); Carbide and Carbon Chemicals Corp. (1948); Carnegie Institute of Techonology (1957); Clare College. Cambridge University (1962); Condon, Edward U. (1952, 1955); Darrow, Karl K. (1964); Dean, Gordon (1952); de Groot, S.R. (1954); Deser, Stanley (1963); E.I. duPont de Nemours & Co. (1950, 1963-64); Eden, Richard J. (1962); Fox, J.G. (1957); W.H. Freeman and Co. Publishers (1957); Georgia Institute of Technology (1957); B.F. Goodrich Co. (1955); Goucher College (1957); Gravity Research Foundation (1957); Green, Louis C. (1955); Grünbaum, [?] ([1964]); John Simon Guggenheim Memorial Foundation (1949-50, 1955); Haverford College (1954-55); Infeld, Leopold (1956); International Congress on Theoretical Physics (1956); Jackson, Henry M. (1957); Kaplan, Joseph (1953); Kaufmann, Bill (1957); Kemmer, N. (1957); Kinsey, E.L. (1955); Lawrence Radiation Laboratoy (1963); Leachman, R.B. (1957); Life (1957); Los Alamos Scientific Laboratory (1957); McGraw-Hill Book Co. (1955); Mark, Carson (1955); Marshak, R[obert] E. (1957); Moe, Henry Allen (1949-50, 1955); Monsanto Chemical Co. (1948); National Academy of Sciences (1956-57); National Aeronautics and Space Administration (1964); National Science Foundation (1952-53, 1956, 1962-63); Neighborhood Goals in a Rapidly Changing World (1957); Nishina, Yoshic (1964); Oak Ridge National Laboratory (1956, 1964); Polvani, Giovanni (1955); Princeton University (1948-50, 1952-54, 1956-57, 1963); Ramo, Simon (1957); Ramo-Wooldridge Corp. (1957); Seeger, Raymond J. (1952); Shenstone, Allen G. (1950, 1952-54); Smyth, Henry DeWolf (1950); Snell, Arthur H. (1956); Springer-Verlag (1954-55); Strong, Philip G. (1964); Sutton, Richard M. (1954-55); Tait Institute of Mathematical Physics (1957); Tata Institute of Fundamental Research (1957); Teller, Edward (1950); Temple University (1964); United Kingdom Atomic Energy Authority (1956); United States. Atomic Energy Commission (1947-50, 1952, 1955-1956, 1964); United States. Office of Naval Research (1948-49); University of California (Los Angeles) (1955); University of London (1957); Van Vleck, J.H. (1957); von Kármán, Theodore (1957); Waterman, Alan T. (1953, 1962); Watson, W.W. (1955); Weil, George L. (1949); Weinberg, Alvin M. (1964); Wheeler, Janette (1950-51); Wheelon, Albert D. (1964); Wigner, Eugene (1955); Woodrow, R[aymond] J. (1951-52).