Government Investigation of Railway Disputes: Hearings Before the Committee ... 64th Congress, 2d 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 in Certain Emergencies to Take Possession of Railroad, Telephone, and Telegraph Lines, and for Other Purposes; January 2, 1917