Section, act Mar. 1, 1893, ch. 183, 21, 27 Stat. 510; 1946 Reorg. Plan No. 3, 403, eff. July 16, 1946, 11 F.R. 7876, 60 Stat. 1100, authorized the commission to use any of the public lands, etc., of the United States, and the withdrawal of lands, etc., required from sale or entry.