HEARINGS BEFORE THE COMMITTEE ON INTERSTATE COMMERCE UNITED STATES SENATE SIXTY-FOURTH CONGRESS SECOND SESSION ON THE TENTATIVE BILL TO AMEND AN ACT ENTITLED "AN ACT PROVIDING FOR MEDIATION, CONCILIATION, AND ARBITRATION IN CONTROVERSIES BETWEEN CERTAIN EMPLOYERS AND THEIR EMPLOYEES," APPROVED JULY 15, 1913, AND THE TENTATIVE BILL TO AUTHORIZE THE PRESIDENT OF THE UNITED STATES JANUARY 2, 1917 WASHINGTON |