[Committee hearings] serial, 85th Congress. 10. Mailing of obscene matter, hearings before subcommittee no. 1, 85th Congress, 2d session on H. R. 2542, H. R. 3033, H. R. 3498, H. R. 3663, H. R. 6239, H. R. 7829, and H. R. 10353, Jan. 27 and 30, 1958.