Strikes and lockouts. Proposed antistrike legislation, hearing before subcommittee on S. 4204, to prohibit interference with commerce, and S. 4210, to amend act to provide for termination of Federal control of railroads and systems of transportation, to provide for settlement of disputes between carriers and their employees, to further amend act to regulate commerce, as amended, and for other purposes, May 20, 21, 1920.