Propaganda. Investigation of un-American propaganda activities in United States, hearings, 75th Congress, 3d session, on H. Res. 282, Sept. 15-17, 1938, at New York, Sept. 28-Oct. 6, 1938, at Washington, D. C., Oct. 11-13, 1938, at Detroit, Mich., Oct. 17-22, 1938, at Washington, D. C.