Second session deals mainly with science policy and science advising in the United States and Europe after World War II. Vice-president of International Union of Pure and Applied Physics (IUPAP), 1951-1954; chairman of U.S. NATO subcommittee (Henry Jackson); work for establishment of the NATO Science Council; U.S. delegate to the NATO Parliamentarians, Paris 1957. Discussion of his concern about scientific manpower; postwar Europe (Holland, France) leads to awareness of need for a national defense research laboratory in U.S.