PUBLIC LAWS-CH. 753-AUG. 2 , 1946 Investigations oW propaganda activities. "11. Mineral land laws and claims and entries thereunder. "12. Geological survey. "13. Mining schools and experimental stations. "14. Petroleum conservation on the public lands and conservation of the radium supply in the United States. "15. Relations of the United States with the Indians and the Indian tribes. "16. Measures relating to the care, education, and management of Indians, including the care and allotment of Indian lands and general and special measures relating to claims which are paid out of Indian funds. "(o) Committee on Public Works. "1. Flood control and improvement of rivers and harbors. "2. Public works for the benefit of navigation, including bridges and dams (other than international bridges and dams). "3. Water power. "4. Oil and other pollution of navigable waters. "5. Public buildings and occupied or improved grounds of the United States generally. "6. Measures relating to the purchase of sites and construction of post offices, customhouses, Federal courthouses, and Government build- ings within the District of Columbia. "7. Measures relating to the Capitol Building and the Senate and House Office Buildings. "8. Measures relating to the construction or reconstruction, mainte- nance, and care of the buildings and grounds of the Botanic Gardens, the Library of Congress, and the Smithsonian Institution. "9. Public reservations and parks within the District of Columbia, including Rock Creek Park and the Zoological Park. "10. Measures relating to the construction or maintenance of roads and post roads, other than appropriations therefor; but it shall not be in order for any bill providing general legislation in relation to roads to contain any provision for any specific road, nor for any bill in relation to a specific road to embrace a provision in relation to any other specific road. "(p) Committee on Rules. ". The rules, joint rules, and order of business of the House. "2. Recesses and final adjournments of Congress. "() (1) Committee on Un-American Activities. ) Un-American activities. "(2) The Committee on Un-American Activities, as a whole or by subcommittee, is authorized to make from time to time investiga- tions of (i) the extent, character and objects of un-American propa- ganda activities in the United States, (ii) the diffusion within the United States of subversive and un-American propaganda that is instigated from foreign countries or of a domestic origin and attacks the principle of the form of government as guaranteed by our Con- stitution, and (iii) all other questions in relation thereto that would aid Congress in any necessary remedial legislation. "The Committee on Un-American Activities shall report to the House (or to the Clerk of the House if the House is not in session) the results of any such investigation, together with such recom- mendations as it deems advisable. "For the purpose of any such investigation, the Committee on Un- American Activities, or any subcommittee thereof, is authorized to sit and act at such times and places within the United States, whether or not the House is sitting, has recessed, or has adjourned, to hold such hearings, to require the attendance of such witnesses and the production of such books, papers, and documents, and to take such testimony, as it deems necessary. Subpenas may be issued under the 828 [60 STAT.