HEARINGS BEFORE A SUBCOMMITTEE OF THE COMMITTEE ON INTERSTATE COMMERCE UNITED STATES SENATE SEVENTY-FIRST CONGRESS SECOND SESSION ON S. 563 A BILL TO AMEND SECTION 4 OF THE May 14, 15, 16, 19, 20, 21, 22, 27, 28, 29, and June 3, 1930 Printed for the use of the Committee on Interstate Commerce |