Section, acts Mar. 2, 1917, ch. 145, § 47, 39 Stat. 967; May 17, 1932, ch. 190, 47 Stat. 158, which related to fees and mileage of jurors and witnesses, was superseded by sections 1821, 1824, 1825, and 1871 of Title 28, Judiciary and Judicial Procedure.