Correspondence, drafts of writings, notes for speeches, laboratory and other notes, articles, book file, scientific papers, memoranda, reports, minutes, financial papers, biographical data, family papers, diagrams of instruments, press releases, clippings, printed matter, photographs, and other papers, chiefly 1932-1955. The collection primarily relates to Bush's role as coordinator of the scientific community for defense efforts during and after World War II when he served as chairman of the National Defense Research Committee and director of its succesor, the Office of Scientific Research Committee and director of its successor, the Office of Scientific Research and Development, where he supervised the Manhattan Project and other programs. Other topics include the organization of scientists for research, government scientific programs, the military establishment, the operation of the Office of Scientific Research and Development, relations of foundations and government to research programs of large corporations, administration of the Carnegie Institution of Washington, of which Bush was president, administration of large universities, scientific research and the democratic process, the issue of government contracts and parents, patent reform, the development of computers, the use of heat as energy, and medical reseach. Other agencies represented include the National Advisory Committee for Aeronautics, Joint Committee on New Weapons of the Joint Chiefs of Staff, National Science Foundation, National Research Council, and National Academy of Sciences. Bush's corporate and academic affiliations are documented by files on American Telephone and Telegraph Company, Merck & Co., Johns Hopkins University, Massachusetts Institute of Technology and Tufts University. Also represented are the Brookings Institution, Carnegie Institution of Washington, Franklin Institute, Metals and Controls Corporation, Smithsonian Institution, and U. S. Patent Office. Also documented are Bush's views on the interrelationship between science and government, technological influences on postwar U. S.-Soviet relations, international control of nuclear energy, and the loyallty controversies during the McCarthy era. he served as chairman of the Nationalific programs, the military establishment, the operation of the Office of Scientific Research and Development, relations of foundations and government to research programs of large corporations, adminstration of the Carnegie Institution of Washington, of which Bush was president, administration of large universities, scientific research and the democratic process, the issue of government contracts and patents, patent reform, the development of computers, the use of heat as energy, and medical research. Correspondents include Dean Acheson, H. H. Arnold, Bernard Baruch, Omar Nelson Bradley, Niels Henrik David Bohr, Robert A. Choate, K. T. Compton, James B. Conant, Bradley Dewey, Charles Dollard, Allen Dulles, Dwight David Eisenhower, Abraham Flexner, James Forrestal, Felix Frankfurter, J. William Fulbright, W. W. Garth, James M. Gavin, Leslie R. Groves, Alfred M. Gruenther, W. Averell Harriman, Caryl Parker Haskins, Herbert Hoover, D. C. Josephs, James Rhyne Killian, R. C. Leffingwell, David E. Lilienthal, Charles A. Lindbergh, Henry Cabot Lodge, Archibald MacLeish, F. Alexander Magoan, George C. Marshall, J. Robert Oppenheimer, Robert Porter Patterson, Don Krasher Price, Redfield Proctor, Palmer Cosslett Putnam, A. Newton Richards, Nelson A. Rockefeller, Elihu Root, Oscar M. Ruebhausen, John T. Rule, Leverett Saltonstall, Orville J. Schell, Leslie Earl Simon, Carl Spaatz, Edward R. Stettinius, Lewis L. Strauss, W. H. Trimble, Harry S. Truman, Tracy S. Voorhees, Warren Weaver, Bethune Webster, Carole L. Wilson, Robert E. Wilson, and Oswald Veblen.