Railroads. Investigation of railroads, holding companies, and affiliated companies, hearings before subcommittee, 75th Congress, 2d [3d] session, pursuant to S. lies. 71 (74th Congress), authorizing investigation of interstate railroads and affiliates with respect to financing, reorganizations, mergers, and certain other matters, Mar. 16-Apr. 1, 1938; Associations related to railroads, legislative activities, activities to influence public opinion, financial support, policies on private car lines, policies on freight rate divisions.