PUBLIC LAWS-CH. 347-JUNE 11, 1938 construction, operation, and maintenance of communication or signal- ing systems, and supplies for their operation and maintenance- pro- fessional and scientific books of reference, pamphlets, periodicals, newspapers, and maps for use of the Signal Corps and in the office of the Chief Signal Officer; telephone apparatus, including rental and payment for commercial, exchange, message, trunk-line, long- distance, and leased-line telephone service at or connecting any post, camp, cantonment, depot, arsenal, headquarters, hospital, aviation Exception station, or other office or station of the Army, excepting the local telephone service for the various bureaus of the War Department in the District of Columbia, and toll messages pertaining to the office Rental o s. of the Secretary of War; electric time service; the rental of com- mercial telegraph lines and equipment, and their operation at or connecting any post, camp, cantonment, depot, arsenal, headquarters, hospital, aviation station, or other office or station of the Army, including payment for official individual telegraph messages trans- ctrial insta- mitted over commercial lines; electrical installations and mainte- nance thereof at military posts, cantonments, camps, and stations of the Army, fire control, and direction apparatus, and material for (iffla employees. Field Artillery; salaries of civilian employees, including those neces- sary as instructors at vocational schools; supplies, general repairs, reserve supplies, and other expenses connected with the collecting and transmitting of information for the Army by telegraph or other- ExpienSt in- wise; experimental investigation, research, purchase, and develop- ment, or improvements in apparatus, and maintenance of signaling and accessories thereto, including machines, instruments, and other equipment for laboratory and repair purposes; lease, alteration, and repair of such buildings required for storing or guarding Signal Corps supplies, equipment, and personnel when not otherwise pro- vided for, including the land therefor, the introduction of water electric light and power, sewerage, grading, roads and walks. and other equipment required, $8,035,200, and, in addition, $189,700 of atedontppropri- the appropriation "Signal Service of the Army, 1938", such amount 0stat. 454 . of such appropriation being hereby reappropriated, and of the total ftRaoa"qipment of such amounts not to exceed $1,102,500 shall be available for pay- ments under contracts for the procurement of radio equipment for airplanes under the authorization contained in the Appropriation Act for the Military Establishment for the fiscal year 1938. Air C o s. AIR CORPS Designated pur- poses. Airrat opertion etc. Landing, etc., run- ways. AIR CORPR, ARMY For creating, maintaining, and operating at established flying schools and balloon schools courses of instruction for officers, students, and enlisted men, including cost of equipment and supplies necessary for instruction, purchase of tools, equipment, materials, machines, textbooks, books of reference, scientific and professional papers, instruments, and materials for theoretical and practical instruction; for maintenance, repair, storage, and operation of airships, war balloons, and other aerial machines, including instruments, mate- rials, gas plants, hangars, and repair shops, and appliances of every sort and description necessary for the operation, construction, or equipment of all types of aircraft, and all necessary spare parts and equipment connected therewith and the establishment of landing and take-off runways; for purchase of supplies for securing, developing, printing, and reproducing photographs in connection with aerial photography; improvement, equipment, maintenance, and operation of plants for testing and experimental work, and procuring and introducing water, electric light and power, gas, and sewerage, including maintenance, operation, and repair of such utilities at [52 STAT.
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