for personal services in the District of Columbia) shall be made available to the Geological Survey to carry out the purposes of Pros. this appropriation: Provided, That the Secretary of the Interior, acting through the Directors of the Bureau of Mines and the Geolo- gical Survey, is hereby authorized to accept buildings, equipment, and other contributions from public or private sources offering to cooperate in carrying out the purposes of this appropriation, and to carry out the projects in cooperation with other departments or agencies of the Federal Government, States and State agencies, and 41U. .s. O. other organizations: Provided further, That section 3709 of the Revised Statutes shall not be construed to apply to this appropriation; Chromium produc- Beneficiation of chromite and production of electrolytic chromium ion. (national defense): For all necessary expenses, without regard to 41U.. ..§5 section 3709 of the Revised Statutes, for the conduct of investiga- tions and development of methods for the recovery of or prepara- tion of high-grade chromite and electrolytic chromium from domestic chromite minerals, including laboratory research; main- tenance and operation of pilot plants; procurement of necessary materials and ores for metallurgical tests; purchase or lease of land; construction and equipment of buildings to house pilot plants, includ- ing employment by contract or otherwise at such rates of compensa- tion as the Secretary of the Interior may determine of engineers, architects, or firms or corporations thereof necessary to design and construct the buildings and pilot plants; supplies and equipment; travel expenses; not to exceed $500 for printing and binding; pur- chase in the District of Columbia and elsewhere of other items other- Ane, p. 509. wise properly chargeable to the appropriation "Contingent expenses, Department of the Interior"; books of reference and periodicals; and special wearing apparel and equipment for the protection of . employees while employed; $75,000, to be immediately available: Contibutions. Provided, That the Secretary of the Interior, through the Director of the Bureau of Mines, is hereby authorized to accept buildings, equipment, and other contributions from public or private sources for the purposes hereof, and to operate said plants in cooperation with other agencies, Federal, State, or private; plants and research. Magnesium pilot plants and research (national defense): For all 41U.S. C. 5. necessary expenses, without regard to section 3709 of the Revised Statutes, for the conduct of investigations and development of methods for the recovery of magnesium from domestic raw materials, including naturally occurring brines, salt deposits, dolomite, mag- nesite, and brucite, by hydrometallurgy, direct reduction, and elec- trolytic methods, including laboratory research; maintenance and operation of pilot plants; procurement of necessary materials and ores for metallurgical tests; purchase or lease of land; construction and equipment of buildings to house pilot plants, including employ- ment by contract or otherwise at such rates of compensation as the Secretary of the Interior may determine of engineers, architects, or firms or corporations thereof necessary to design and construct the buildings and pilot plants; supplies and equipment; travel expenses; not to exceed $12,000 for personal services in the District of Colum- bia; not to exceed $1,000 for printing and binding; purchase in the A District of Columbia and elsewhere of other items otherwise prop- A p. 609. erly chargeable to the appropriation "Contingent expenses, Depart- ment of the Interior"; books of reference and periodicals; special wearing apparel and equipment for protection of employees while employed; and the purchase (including exchange), operation, mainte- nance, and repair of three passenger-carrying automobiles; $549,825, Contributions. to be immediately available: Provided, That the Secretary of the Interior, through the Director of the Bureau of Mines, is authorized 546 [56 STAT. PUBLIC LAWS-CH. 473-JULY 2, 1942
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