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 SEVENTY-FIRST CONGRESS. SESS. III. Cns. 326, 327 . 1931 . 1453 technical subjects connected with the work of the Hydrographic Office, $80,000. BRANCH HYDROGRAPHIC OF FIC ES For cont ingent expe nses o f bra nch h ydrogr aphic offic es at Bost on, New York, Philadelphia, Baltimore, Norfolk, Savannah, New Orleans, San Francisco, Portland (Oregon), Portland (Maine), Chicago, Cleveland, Detroit, Buffalo, Duluth, Sault Sainte Marie, Seattle, Panama, San Juan (Porto Rico), Los Angeles, Honolulu, and Galveston, including furniture, fuel, lights, works, and periodi- c als, relat ing to hydr ograp hy, ma rine meteor ology, nav igatio n, su r- veying oceanography, and terrestrial magnetism, stationery, miscel- laneous articles, rent and care of offices, care of time balls, car fare and ferria ge in visit ing merchan t vessels, f reight and express cha rges, telegrams, and other necessary expenses incurred in collecting the latest information for pilot charts, and for other purposes for which the offices were established, $19,020. For services of necessary employees at branch offices, $45,480. CONTINGENT AND MISC RLT ,ANEOUS EXP ENS ES, NAVAL OBSERVATORY Branch offices. Contingent expenses of, designated. Empl oyees. Naval Observatory. For professional and scientific books, books of reference eriodi- Library, apparatus, h repairs, miscellaneous cals, engravings, phtographs, and fixtures for the library ; for app a- supplies, etc. ratus and instruments, and for repairs of the same ; for repairs to buildings (including quarters), fixtures, and fences ; for cleaning, repair, and unkeep of grounds and roads ; furniture and furnishings for offices and quarters, gas, chemicals, paints, and stationery, includ- ing transmission of public documents through the Smithsonian exchange, foreign postage ; plants, seeds, and fertilizers ; for fuel, oil, grease, pipe, wire, and other materials needed for the maintenance and repair of boilers, engines, heating apparatus, electric lighting and power, and water supply ; purchase and maintenance of teams ; maintenance, repair, and operation of motor trucks and passenger automobiles, and of horse-drawn vehicles ; telegraph and telephone service ; and other absolutely necessary expenses, $42,500. For the purchase and installation of equipment, utilities, and appurtenances for astrographic and research work and moderniza- tion of the astronomical plant of the Naval Observatory, as author- ized by the Act approved June 11, 1930 (46 Stat ., p . 556), $50,000, and the Secretary of the Navy is authorized to enter into contracts or other obligations for this purpose at a cost in the aggregate not to exceed $160,000. Approved, February 28, 1931. vehicles, etc. Astronomical plant. Modernization, etc. Ante, p. 556. Contracts authorized. CHAP. 327 .-An Act To authorize alterations and repairs to certain naval Feb nary 50.1is31. vessels. [Public, No .746.j Be it enacted by the Senate and House of Representatives of the United States o f America in Congress assembled, That for the pur- pose of modernizing the United States ships New Mexico, Missis- sippi, and Idaho alterations and repairs to such vessels are hereby authorized at a total cost not to exceed the sum of $30,000,000, in all. The al terat ions to the capi tal sh ips h erein autho rized shal l be subject to the limitations prescribed in the treaty limiting naval armaments, ratified August 17, 1923. Approved, February 28, 1931. Battleships. App rop ria tio n ' an- thorized for moderniz- ing designated . Subject to tre aty limitations. Vol. 43, p. 1655. Post, pp. 1577,2858.

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