PUBLIC LAWS-CH 175--APR. 22, 1944 grounds, including mechanical and electrical equipment, but not the repair thereof, operated by the Post Office Department including the Washington Post Office and the Customhouse Building in the District of Columbia, and for the transportation of articles and Personal services, supplies authorized herein, $6,000,000: Provided, That the foregoing limitation. appropriation shall not be available for personal services except for work done by contract, or for temporary job labor under exigency not exceeding at one time the sum of $100 at any one building: Telephone service Provided further, That the Postmaster General is authorized to con- tract for telephone service in public buildings under his administra- tion by means of telephone switchboards or equivalent telephone switching equipment jointly serving in each case two or more governmental activities, where he determines that joint service is economical and in the interest of the Government, and to secure reim- bursement for the cost of such joint service from available appro- priations for telephone expenses of the bureaus and offices receiving the-same . Furniture, carpets, and safes, public buildings: For the procure- ment, including transportation, of furniture, carpets, safes, safe and vault protective devices, and repairs of same, for use in public build- ings which are now, or may hereafter be, operated by the Post Office P nal servies, Department, $550,000: Provided, That excepting expenditures for labor for or incidental to the moving of equipment from or into public buildings, the foregoing appropriation shall not be used for personal services except for work done under contract or for temporary job labor under exigency and not exceeding at one time the sum of $100 tUe of tprent "rni- at any one building: Providedfurther, That all furniture now owned by the United States in other public buildings or in buildings rented by the United States shall be used, so far as practicable, whether or not it corresponds with the present regulation plan of furniture. Burnfea of tandards. Scientific investigations: In the disbursement of appropriations con- tained in this title for the field service of the Post Office Department the Postmaster General may transfer to the Bureau of Standards not to exceed $20,000 for scientific investigations in connection with the purchase of materials, equipment, and supplies necessary in the main- tenance and operation of the Postal Service. Deficieney appro Deficiency m postal revenues: If the revenues of the Post Office Department shall be insufficient to meet the appropriations made under title II of this Act, a sum equal to such deficiency in the revenues of such Department is hereby appropriated, to be paid out of any money in the Treasury not otherwise appropriated, to supply such deficiency in the revenues of the Post Office Department for the fiscal year ending June 30, 1945, and the sum needed may be advanced to the Post Office Department upon requisition of the Postmaster General. itation of title. This title may be cited as the "Post Office Department Appropria- tion Act, 1945". TITLE III-GENERAL PROVISIONS Persons advocating overthrow o .scn. SEC. 301. No part of any appropriation contained in this Act shall oovernment. be used to pay the salary or wages of any person who advocates, or who is a member of an organization that advocates, the overthrow of davt t he Government of the United States by force or violence: Provided, That for the purposes hereof an affidavit shall be considered prima facie evidence that the person making the affidavit does not advocate, and is not a member of an organization that advocates, the over- throw of the Government of the United States by force or violence: nty. Provided further,That any person who advocates, or who is a mem- [58 STAT.
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