7 STAT.] 78Tm CONG., 1ST SESS. -CH. 215-JULY 12, 1948 any particular tract or tracts of land: Provided further, That not Allowances for liv- to exceed $25,000 of the appropriations available for salaries and g q aroa expenses of officers and employees of the Department permanently stationed in foreign countries may be used for payment of allow- ances for living quarters, including heat, fuel, and light, as author- ized by the Act approved June 26, 1930 (5 U. S . C . 118a) : Provided 4 stat. 818. further, That with the approval of the Secretary, employees of the etc., inadvance. the Department stationed abroad may enter into leases for official quarters, for periods not exceeding one year, and may pay rent, telephone, subscriptions to publications, and other charges incident to the conduct of their offices and the discharge of their duties, in advance, in any foreign country where custom or practice requires payment in advance: Provided further, That no part of gEmfptese predics the funds appropriated by this Act shall be used for the payment cotton. of any officer or employee of the Department who, as such officer or employee, or on behalf of the Department or any division, commission, or bureau thereof, issues, or causes to be issued, any prediction, oral or written, or forecast, except as to damage threat- ened or caused by insects and pests, with respect to future prices of cotton or the trend of same: Provided further, That no part of the Laboratory investi funds appropriated by this Act shall be used for laboratory investi- tio gations to determine the possibly harmful effects on human beings of spray insecticides on fruits and vegetables: Provided further, Puohase oftwine. That, except to provide materials required in or incident to research or experimental work where no suitable domestic product is avail- able, no part of the funds appropriated by this Act shall be expended in the purchase of twine manufactured from commodities or materials produced outside of the United States: WORKING CAPITAL FUND For the establishment of a working capital fund, $400,000, without fiscal year limitation, for the payment of salaries and other expenses necessary to the maintenance and operation of (1) central duplicat- ing, photographic, and tabulating services, (2) a central motor-trans- port service for the maintenance, repair, and operation of motor- transport vehicles and other equipment, (3) a central supply service for the purchase, storage, handling, issuance, packing, or shipping of stationery, supplies, equipment, blank forms, and miscellaneous mate- rials, for which stocks thereof, not to exceed $200,000 in value (except for the value of blank forms) at the close of any fiscal year, may be maintained sufficient to meet, in whole or in part, requirements of the bureaus and offices of the Department in the city of Washington and elsewhere, and (4) such other services as the Secretary, with the approval of the Director of the Bureau of the Budget, determines may be performed more advantageously as central services; said fund to be reimbursed from applicable funds of bureaus, offices, and agencies for which services are performed on the basis of rates which shall include estimated or actual charges for personal services, materials, equip- ment (including maintenance, repairs, and depreciation) and other expenses: Provided That such central services shall, to the fullest extent practicable, be used to make unnecessary the maintenance of separate like services in the bureaus, offices, and agencies of the depart- ment: Providedfurther, That a separate schedule of expenditures and reimbursements, and a statement of the current assets and liabilities of the working capital fund as of the close of the last completed fiscal year, shall be included in the annual Budget. Total, Office of the Secretary, $1,898,184. Central services. Fund for operation and maintenance. Reimbursement Use of service. Accountng. 393
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