54 STAT.] 76TH CONG. , 3D SESS. -CH. 343-JUNE 13, 1940 for military attaches: Provided further, That no part of the funds herein appropriated shall be available for construction of a per- manent nature of an additional building or an extension or addition to an existing building, the cost of which in any case exceeds $20,000: Provided further, That the monthly rental rate to be paid out of this appropriation for stabling any animal shall not exceed $15. CONSTRUCTION AND REPAIR OF HOSPITALS For construction and repair of hospitals at military posts already established and occupied, including all expenditures for construc- tion and repairs required at the Army and Navy Hospital at Hot Springs, Arkansas, and for the construction and repair of general hospitals and expenses incident thereto, and for additions needed to meet the requirements of increased garrisons, and for temporary hospitals in standing camps and cantonments i for the alteration of permanent buildings at posts for use as hospitals, construction and repair of temporary hospital buildings at permanent posts, construc- tion and repair of temporary general hospitals, rental or purchase of grounds, and rental and alteration of buildings for use for hospital purposes in the District of Columbia and elsewhere, including neces- sary temporary quarters for hospital personnel, outbuildings, heating and laundry apparatus, plumbing, water and sewers, and electric work, cooking apparatus, and roads and walks for the same, $780,909. ARMY MEDICAL LIBRARY AND MUSEUM BUILDING For personal services and other necessary expenses incident to designing and preparing working drawings and specifications of a building to replace the present Army Medical Library and Museum, as authorized by the Act of June 15, 1938 (52 Stat. 684)., $130,000. The appropriations contained in this Act which are available for the procurement or manufacture of munitions of war of special or technical design may be used for the development and procurement of gages, dies, jigs, and other special aids and appliances, production studies, factory plans, and other production data, including specifi- cations and detailed drawings, in accordance with the provisions of sections 120 and 123 of the National Defense Act, as amended. Such appropriations may also be used for the purchase of letters patent, applications for letters patent, and licenses under letters patent and applications for letters patent that pertain to such equipment or material for which the appropriations are made. SIGNAL CORPS SIGNAL SERVICE OF TIIE ARMY Purchase, equipment, operation, and repair of military telegraph, telephone, radio cable, and signaling systems; signal equipment and stores, heliographs, signal lanterns, flags, and other necessary instru- ments; wind vanes, barometers, anemometers, thermometers, and other meteorological instruments; photographic and cinematographic work performed for the Army by the Signal Corps; motorcycles, motor-driven and other vehicles for technical and official purposes in connection with the construction, operation, and maintenance of com- munication or signaling systems, and supplies for their operation and maintenance; professional and scientific books of reference, pam- phlets, periodicals, newspapers, and maps for use of the Signal Corps and in the office of the Chief Signal Officer; telephone apparatus, in- cluding rental and payment for commercial, exchange, message, 363 Construction, limi- tation on cost. Stabling, rental rate. Post, pp. 602, 968. Constructionandre- pair of hospitals. Temporary hospi- tals. Post, p . 656. Replacement of present building. Gages, dies, jigs, etc., funds available. 39 Stat. 213, 215. 50U. S.. . 80, 78. Purchase, etc., of letters patent. Pos, pp. 602, 873, 968. Post, pp. 602, 603, 873, 968. Telegraph, etc., sys- tems. Vehicles Telephone appara- tus, etc.