21 U.S.C. §§ 176 to 185 Pub. L. 91-513, title III, §1101(a)(2), (9), Oct. 27, 1970, 84 Stat. 1291, 1292 Section 176, acts Feb. 9, 1909, ch. 100, §2(g), 35 Stat. 614; Jan. 17, 1914, ch. 9, 38 Stat. 275; May 26, 1922, ch. 202 §1, 42 Stat. 596; June 7, 1924, ch. 352, 43 Stat. 657, covered liability of masters of vessels and persons in charge of railroad cars and other vehicles used to carry narcotic drugs. Section 176a, act Feb. 9, 1909, ch. 100, §2(h), as added July 18, 1956, ch. 629, title I, §106