Legislation affecting sections 7, 11, and 15 of the Clayton Act : hearings before the Subcommittee on Antitrust and Monopoly of the Committee on the Judiciary, United States Senate, Eighty-fifth Congress, second session pursuant to S. Res. 231, on S. 198, a bill to amend the Clayton Act, as amended, by requiring prior notification of corporate mergers, and for other purposes : S. 721, a bill to amend section 11 of the Clayton Act to provide for the more expeditious enforcement of cease and desist orders issued thereunder, and for other purposes : S. 722, a bill to amend the Clayton Act to prohibit certain bank mergers and provide for more effective enforcement thereof, and for other purposes : S. 3479, a bill to amend section 11 of the Clayton Act to invest 'the Federal Trade Commission with jurisdiction to issue .preliminary injunctions in the enforcement of section 7 of the Clayton Act under certain circumstances, and for other purposes, April 1, 2, 24,25, and May 7, 1958.