59 STAT.] 79TH CONG., 1ST SESS. -CH. 262-JULY 3, 1945 continued available until June 30, 1946, and the limitation on the amount available for personal services in the District of Columbia from the entire amount appropriated under this head is hereby increased from $100,000 to $110,000. Manganese beneficiation pilot plants and research (national defense): For all necessary expenses, without regard to section 3709, Revised Statutes, of investigations and development of methods of beneficiat- ing and smelting domestic manganese ores, including ore dressing, hydrometallurgy, pyrometallurgy, and for the production of metallic manganese by electrolytic or other methods, including all necessary preliminary and supplemental laboratory research; maintenance and operation of pilot plants; procurement of necessary materials and ores for metallurgical tests: supplies and equipment; travel expenses; per- sonal services in the District of Columbia (not to exceed $16,000); printing and binding (not to exceed $1,000); purchase in the District of Columbia and elsewhere of furniture and equipment, stationery and supplies; operation, maintenance, and repair of motor-propelled passenger-carrying vehicles; purchase of special wearing apparel or equipment for the protection of employees while engaged in their work, $450,000: Provided, That the Secretary, acting through the Director of the Bureau of Mines, is hereby authorized to accept build- ings, equipment, and other contributions from public or private sources offering to cooperate in carrying out the purpose of this appro- priation, and to operate such plants in cooperation with other depart- ments or agencies of the Federal Government, States, and State agen- cies, and other organizations. Production of alumina from low-grade bauxite, aluminum clays and alunite (national defense): For all expenses necessary, without regard to section 3709, Revised Statutes, to the conduct of investi- gations and research on processes for production of alumina from siliceous bauxites, aluminum clays and alunite, including all neces- sary laboratory research; maintenance and operation of small sub- commercial plants; procurement of necessary materials and ores; construction and equipment of buildings to house testing and sub- commercial plant units; not to exceed $30,000 for temporary employ- ment of engineers, architects, or firms or corporations thereof, by contract or otherwise, without regard to the civil-service and classi- fication laws, that are necessary to design and construct the buildings and plant units; purchase of supplies and equipment; travel expenses; not to exceed $29,200 for personal services in the District of Colum- bia; purchase of furniture and equipment, stationery and supplies; purchase of special wearing apparel or equipment for protection of employees engaged in their work, $650,000. Investigation of bauxite and alunite ores and aluminum clay depos- its (national defense): For all necessary expenses, without regard to section 3709, Revised Statutes, of investigations, including laboratory research and procurement of materials therefor, concerning the extent, mode of occurrence, and quality of bauxite and alunite ores and aluminum clays in order to determine domestic sources or supply; to explore and develop on public lands and, with the consent of owners, on private lands, deposits of such ores and clays, including geologic studies and geophysical prospecting; construction, mainte- nance, and repair of necessary camp buildings and mining structures and appurtenances; including not to exceed $40,000 for personal serv- ices in the District of Columbia; operation, maintenance, and repair of motor-propelled passenger-carrying vehicles; printing and bind- ing; purchase of such wearing apparel and equipment as may be required for the protection of employees while engaged in their work; and other items otherwise properly chargeable to the appro- priation "Contingent expenses, Department of the Interior", $50,000. 349 Manganese benefi- ciation pilot plants and research. 41U.S.C. 5. Contributions. Alumina. Production from low-grade bauxite, etc. 41 U. S.C. 15. Temporary employ- mont. Personal serviea. 41. S.C.i AUt, p. 31A
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