Correspondence, speeches, writings, reports, travel diaries, autobiographical material, Pritchett's book entitled What is Religion? (1906), and other papers relating to Pritchett's career in science and education. Documents his activities with the Carnegie Foundation for the Advancement of Teaching, Massachusetts Charles River Basin Commission, Santa Barbara Relief Fund Committee, formation of the U.S. Bureau of Standards, and the Franklin Fund. Subjects include education, medical education, racial matters, political affairs, and Woodrow Wilson. Correspondents include Charles Francis Adams, Samuel Bowles, Nicholas Murray Butler, Andrew Carnegie, Charles Gates Dawes, Charles William Eliot, Samuel S. Hall, Herbert Hoover, Walter A. Jessup, Frederick P. Keppel, William S. Learned, Gladys Noon, Margaret Rabitte, Alfred Zantzinger Reed, Theodore Roosevelt, Elihu Root, Elihu Root, Jr., W.B. Storey, William H. Taft, Booker T. Washington, Woodrow Wilson, and Owen Wister.