srxrr-FIFTH CONGRESS. sees. 1. oa. 29. 1917. 187 omrrcn or THE cmmv SIGNAL ormcnn. 8*8¤**‘S°"i°°· Srcivai. Smzvrcn or THE ARMY: For expenses of the Signal Service §,g°§°;85_ of the Army, as follows: Purchase, equipment, and repair of field ’ ' electric telegraphs, radio installations, signal eqlpipments and stores, binocular glasses, telescopes, heliostats, and other necessary instruments, inc uding necessary meteorological instruments for use on target ranges; motorcycles and motor-driven vehicles used for technical and official purposes; professional and scientific books of reference, pamphlets, periodicals, newspapers, and mags, for_ use m W mu _ the office of the Chief Signal Officer; war balloons an a1rships and smpS“f'.,¢c_ °°‘“’ “"' accessories, including their maintenance and repair; telephone apparatus (exclusive of exchange service) and maintenance of the same; la electrical installations and maintenance at military mposts ; iire-control El"°°"°p “°s’°“" and direction ap aratus and material for Field Art' ery; maintenance and repair of military lines and cables, including salaries of civilian employees, supplies, general repairs, reserved supplies, and other ex nses connected with the duty of collecting and transmitting iniidermation for the Army by teleiaph or otherwise, $47 267,766: _ Provided, however, That not more t an $43,450,000 of the izoregoing Awami seam. appropriation shall be used for the purchase, manufacture, mam- ,m§§{°h°’°s· °*°·· tenance, o ration, and repair of airships and other aerial machines, buildings idi equipment and personnel, and other accessories neces- _ sary in the Aviation Section; and for the purchase, maintenance, “°"°"°*“°*°‘· repair, and operation of motor-propelled passenger and equipment carrying vehicles which ma be necessary for the Aviation Section: _ _ Provid further, That of the sum last above mentioned so much “‘ thereof as may be necess shall be available for paying and otherwise providing for such (iii-iycers of the OfHcers’ Reserve orps of the Aviation Section of the Signal Corps and such enlisted men of the Enlisted Reserve Corps of the Aviation Section of the Signal Corps as may be called into active service. _ S., wr vi m Provided further, That the Secretary of War is hereby authorized ,d.L,°i§,p.m,Ztc? ° to acqlprire, by purchase, donation, or by condemnation, such land sites t oughout the United States as are immediately necessary for the permanent establishment of aviation schools, aviation osts, and experimental aviation stations and proving grounds for the United States Army: Prowkied further, That not more than $9,000,000 of ¤£_°°p°°dm"°° °"°°1` the sum last above mentioned shall be made available for the urchase of land sites and for the improvement and preparation of iimd C t V I and waters contiguous thereto; or the construction, maintenance, b¤a°£g,Zi'§ `°° ° and repair of permanent barracks, quarters, stables storehouses, macgazines, administration buildings, hangars, sheds, shops, garages, an other tpermanent buildings necessary for the shelter of aviation troops, pu lic animals, stores and equipment, and for administration purposes; for the purchase of all equipment and material necessary mBlg§*z§;‘*°¤· °‘1“iP· or the installation, operation, and re air of all water, sewer, electric- ' light and electric-power systems; for iihe construction of roads, walks, and wharves; for the disposal of drainage; for the clearing, grading, rolling, seeding, dredging, and otherwise improving and preparing land and water sites; for rental and lease of grounds for aviation L°”“~ fields, camp sites, and other military aviation purposes; for rental and lease of buildings or portions of buildings for occupation by aviation troops, and for use as storehouses, offices, shops, garages, and for other military aviation purposes; for the purchase of office furniture °m°°s°°°H°°’°°°` and_ office equipment; ror the purchase and installation of special eguipment, suplplies, and accessories necessary for the establishment o experiment stations and proving grounds, aviation schools, and aviation posts; for the purchase of such textbooks, books of reference, scientific and professional papers, periodicals and magazines, and the