Early training as a physicist; quartz-fibre electrometer; high-voltage installations, above 200 kilovolts; high-voltage accelerator, especially Van de Graaff machines; cloud chamber; fission 1939; reminiscences of Niels Bohr; leaving Europe 1939; war work at National Bureau of Standards 1940; rocket work 1940’s; post-war rehabilitation of laboratory facilities; technological improvements after the war; learning nuclear physics after the war; nuclear spin; development of shell model; rotational model 1952; gamma-ray detection; changes in research styles; research plans for the present (1967).
