The New World, 1939

Acheson Administration agreed agreement Alamos amendment American Army Arthur Compton barrier Baruch Board bomb Briggs British Bush and Conant Byrnes calutrons chain reaction Chicago Churchill civilian Combined Policy Committee Compton conference Conference of Berlin construction decision discussion draft du Pont effort engineering Fermi fissionable material gaseous-diffusion Government graphite Groves Groves's Hanford Harrison implosion international control isotope July June Lawrence legislation Lilienthal Los Alamos Manhattan District Manhattan project May-Johnson bill McMahon bill MD History meeting memorandum ment Metallurgical Laboratory mittee neutrons Newman nuclear Oak Ridge operation Oppenheimer OSRD patent Patterson physicists pile pilot plant plutonium Pont possible President production proposed Roosevelt Russian scientific scientists Seaborg Secretary Senate Soviet Soviet Union staff Stimson Stone & Webster suggested Szilard tank technical thorium thought tion Truman United Nations uranium 235 Urey Vandenberg Wallace Washington week White House