Survey of Conditions of the Indians in the U.S. Part 26 hearings before the United States Senate Committee on Indian Affairs, Subcommittee on S. Res. 79, Seventy-First Congress, second session and Seventy-First Congress, third session and Seventy-Second Congress, first session, on Jan. 31, Dec. 5, 10, 1930, Jan. 22, 1931, June 30, 1932