A prior section 7 of act July 2, 1890, ch. 647, 26 Stat. 210, related to suits by persons injured by acts in violation of sections 1 to 7 of this title and was classified as a note under section 15 of this title, prior to repeal by act July 7, 1955, ch. 283, § 3, 69 Stat. 283, effective six months after