PUBLIC LAWS-CH. 337-JULY 25, 1947 meetings and conferences held for promoting safety and health in the coal-mining industry; $1,625,000. Testing fuel: For expenses necessary to conduct inquiries and scientific and technologic investigations concerning the mining, prepa- ration, treatment, and use of mineral fuels, and for investigation of mineral fuels belonging to or for the use of the United States, with a Recommendations view to their most efficient utilization; to recommend to various agencies. departments such changes in selection and use of fuel as may result in greater economy, and, upon request of the Director of the Bureau of the Budget, to investigate the fuel-burning equipment in use by or proposed for any of the departments, establishments, or institutions of the United States in the District of Columbia; $400,000, of which not to exceed $93,500 may be expended for personal services in the District of Columbia. Anthracite investigations: For expenses necessary to conduct inquiries and scientific and technologic investigations concerning the mining, preparation, treatment, and use of anthracite coals; including items otherwise properly chargeable to the appropriation "Contingent expenses, Department of the Interior"; and not to exceed $7,500 for personal services in the District of Columbia, $105,000. Anthracite Research Laboratory: For the construction and equip- ment of an anthracite research laboratory at Schuylkill Haven, Pennsylvania, including not to exceed $25,000 for employment by contract, or otherwise, at such rates of compensation as the Secretary may determine, of engineers, architects, or firms or corporations thereof necessary to design and construct said laboratory; and the purchase, maintenance, and operation of not to exceed one passenger automobile, $450,000. Synthetic liquid fuels: For expenses, without regard to section 3709, 41U. .C. 5. Revised Statutes, as amended, necessary to carry into effect the Act authorizing the construction and operation of demonstration plants to produce synthetic liquid fuels from coal, oil shales, agricultural and 58 Stat. iG. forestry products, and so forth, approved April 5, 1944 (30 U. S . C . 321-325), including construction and acquirement of camp and labora- tory buildings and equipment, personal services in the District of Columbia (not exceeding $100,000); purchase of not to exceed two passenger motor vehicles; printing and binding; and purchase in the District of Columbia and elsewhere of items otherwise properly chargeable to the appropriation "Contingent expenses, Department of the Interior", $3,000,000, to remain available until expended: Transportation. Provided, That these funds may be utilized to provide transportation between the proposed plants and related facilities and communities that provide adequate living accommodations of persons engaged in the operation and maintenance of these plants; and for transportation to and from schools of pupils who are dependents of such persons: Pooling of equip- Provided further, That pursuant to agreements approved by the Secretary, the transportation equipment available to the Bureau of Mines may be pooled with that of school districts and other local or Federal agencies for use in transporting persons engaged in operation and maintenance of these plants, pupils who are dependents of such persons, and other pupils, and in the interest of economy the expenses of operating such equipment may be shared. Mineral mining investigations: For scientific and technologic inves- tigations concerning the mining, preparation, treatment, and utiliza- tion of ores and mineral substances, other than fuels, with a view to improving health conditions and increasing safety, efficiency, and economy in the mining, quarrying, metallurgical, and other mineral industries; including all equipment, supplies, expenses of travel, and not to exceed $40,000 for personal services in the District of 480 [61 STAT.