Based on 44 U.S. Code, 1964 ed., § 260 (Jan. 12, 1895, ch. 23, § 73, 28 Stat. 614; Mar. 2, 1895, ch. 189, § 1, 28 Stat. 960; June 11, 1896, ch. 420, § 1, 29 Stat. 453; June 4, 1897, ch. 2, § 1, 30 Stat. 61;
Geological Survey redesignated United States Geological Survey by provision of title I of Pub. L. 102–154, set out as a note under section 31 of Title 43, Public Lands.