Violations of free speech and rights of labor. Part 57, Open-shop activities: Los Angeles Clearing House Association; Los Angeles Chamber of Commerce; Southern Californians, Inc.; the Neutral Thousands, Inc., Los Angeles, California, January 22, 1940 : hearings before a subcommittee of the Committee on Education and Labor, United States Senate, Seventy-sixth Congress, third session pursuant to S. Res. 266 (74th Congress), a resolution to investigate violations of the right of free speech and assembly and interference with the right of labor to organize and bargain collectively.