Administration and use of public lands. Part 7, Washington, D.C. June 15, 16, and 21, 1943 : hearings before a subcommittee of the Committee on Public Lands and Surveys, United States Senate, Seventy-eighth Congress, first session pursuant to S. Res. 241 (76th Congress--extended by S. Res. 39, 78th Congress), a resolution authorizing the Committee on Public Lands and Surveys to make a full and complete investigation with respect to the administration and use of public lands