[Committee hearings], serial, 86th Congress. 17. Federal conflict of interest legislation, hearings before antitrust subcommittee (subcommittee no. 5), 86th Congress, 2d session, on H.R. 1900, H.R. 2156, H.R. 2157, H.R. 7556, and H.R. 10575, Feb. 17-Mar. 3, 1960.