Merchant marine act, 1936, hearings, 74th Congress, 2d session, on S. 3500, to develop strong American merchant marine, to promote commerce of United States, to aid national defense, and for other purposes, S. 4110, to further development and maintenance of adequate and well-balanced American merchant marine, to provide for separation of regulatory functions of Government over shipping from Government's business interests in ships and shipping, to regulate wages and working conditions of American seamen, to repeal certain former legislation, and for other purposes, and S. 4111, to provide for building up strong American merchant marine, Mar. 9 and 10, 1936.