56 STAT.] 77TH CONG. , 2D SESS.-CH. 524 -JULY 25, 1942 ment; traveling expenses, including attendance at meetings of organi- zations concerned with the purposes of this appropriation; mainte- nance, repair, and operation of passenger-carrying automobiles; purchase of special wearing apparel or equipment for the protection of employees while engaged in their work; purchase in the District of Columbia and elsewhere of other items otherwise properly charge- able to the appropriation "Contingent expenses, Department of the Interior"; $540,000: Provided, That section 3709, Revised Statutes, shall not apply to any purchase or service rendered under this appro- priation when the aggregate amount involved does not exceed $300: Provided further, That the Secretary of the Interior, through the Director of the Bureau of Mines, is hereby authorized to carry out projects hereunder in cooperation with other departments or agencies of the Federal Government, the District of Columbia, States, Terri- tories, insular possessions, with other organizations or individuals, and with foreign countries and the political subdivisions thereof. Reduction of zinc concentrates with methane gas (national defense): For all necessary expenses, without regard to section 3709 of the Revised Statutes, for pilot tests on the reduction of zinc concentrates to metal with methane gas, including laboratory research, mainte- nance and operation of pilot plant; procurement of necessary material and ores; purchase or lease of land or buildings; construction and equipment of buildings to house pilot plant, including engagement by contract or otherwise, at such rates of compensation as the Secre- tary of the Interior may determine, of engineers, architects, or firms or corporations thereof necessary therefor; supplies and equipment; traveling expenses; not to exceed $10,000 for personal services in the District of Columbia; not to exceed $500 for printing and binding; purchase (not to exceed $1,850) including exchange, operation main- tenance, and repair of passenger-carrying automobiles; special wear- ing apparel and equipment for the protection of employees while employed; and the purchase in the District of Columbia and elsewhere of other items otherwise properly chargeable to the appropriation, "Contingent expenses, Department of the Interior"; fiscal year 1943, $350,000, to remain available until expended: Provided, That the Secretary of the Interior is authorized to accept lands, buildings, equipment, and other contributions from public or private sources for the purposes hereof, and to carry out projects in cooperation with other agencies, Federal, State, or private. NATIONAL PARK SERVICE Recreational resources of Denison Dam and Reservoir project, Texas and Oklahoma: For the completion of a survey, investigation, and plan for the utilization of the recreational resources of the Denison Dam Reservoir in accordance with the Act approved June 23, 1936 (49 Stat. 1894), fiscal year 1943, $10,000. Salaries and expenses, National Capital parks: For an additional amount, fiscal year 1943, including the objects specified under this head in the Interior Department Appropriation Act, 1943 (Public Law 645, Seventy-seventh Congress), $15,000. DEPARTMENT OF JUSTICE FEDERAL BUREAU OF INVESTIGATION Salaries and expenses, detection and prosecution of crimes (emer- gency): For an additional amount for salaries and expenses, during the national emergency, in the detection and prosecution of crimes against the United States, to be supplemental to the appropriation 717 Automobiles. Contingent ex- penses. Ante, p. 509. ProisO. 41U.8.C.i6. Cooperation with other agencies. Pilot tests. 41 U. .C..& Engagement of e-n gineers, etc. Automobils. Ante, p. M09. Proviso. Contributions. Anpk, p. M 16U. .C.I.Ik- 17n. Ante, p. 583.
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