Sec. 1, 30 Stat. 35, as amended ( 16 U.S.C. 551 ); sec. 1, 33 Stat. 628 ( 16 U.S.C. 472 ); sec. 32, 50 Stat. 525, as amended ( 7 U.S.C. 1011 ); sec. 19, 64 Stat. 88 ( 16 U.S.C. 5801 ); Title IV, Pub. L. 94, 90 Stat. 2771 ( 43 U.S.C. 1751, et seq.); 92 Stat. 1803 ( 43 U.S.C. 1901 )