SIXTY·FOURTH CONGRESS. Sess. I. C11. 117. 1916. 115 For investigation of materials used in the construction of rails, ,u,j*'i_*:,*,*,‘g,?g0,*;,‘1‘**P¤*°°‘ wheels, axles and other railway equi ment, and the cause of their ` failure including personal services in the District of Columbia and in the field, $15,000. · _ For testi miscellaneous materials, such as varnish materials, soap ,,,gM'f§Q“““°°“’ ‘°“‘ materials, ihgks, and chemicals, including supplies for the Govern- ’ ment departments and independent establis ents, including personal services in the District of Columbia and in the field, as authorized by law, $20,000. R dj I For investigation and standardization of methods and instruments nouiieaiiaiiiiiilriiltliriuiiii employed in radio communication, including personal services in the District of Columbia and in the field, $10,000. hmmm I I To develop color standards and methods of manufacture and of m.¤ami¤,¤ai. °°°t color measurement, with special reference to their industrial use in standardization and specification of colorants such as dyestuifs, inks, and pigments, and other products, paint, paper, and textiles, in which color is a lpertinent (property, including personal services in the District of Co umbia an in the field, $10,000. To stud methods of measurement and technical processes used in &’ P'°"“°“ P'°°‘ the manugicture of pottery, brick, tile,_terra cotta, and other clay products, and the study of the properties of the_ materials used in that industry including personal services in the District of Columbia and in the field, $10,000. To determine experimentally important physical constants of ma- ,,E*,lf¤§'},§,{§,,',;,§§s *3 terials essential to the industries or in laboratory investigations, as lipiisltrm mmmis, authorized b law, such as the determination of the value of gravity, ° °' thermal conductivities of materials, mechanical equivalent of heat, metallurgical constants such as specific and latent heats of metals and alloys, the electrochemical equivalent of metals, the velocity of light; including data imhportant in the efficient planning of industrial processes, and in the e ective utilization of the pro erties of materials including personal services in the District of (liilumbia and in thiiffkildi d5’000. h d f d d rd h A MI, I * o eve op met 0 s o testin an stan a izin mac ines, motors, {fm"' °¥*¤ · tools, measrui instruments, gud other apparatgs and devices used mi mgm ms' in mechanicalfllrydraulic, and aeronautic emeerin ; for the comparative study of types of apparatus and methods oig operation, and or the establishment of stan ards of performance; for the accurate determination of fundamental physical constants involved in the proper execution of this work; and for the scientific experiments and investigations needed in solving the problems which may arise in connection therewith, especially in response to the requirements of aeronautics and aviation for information of a urely scientific nature, rncluding personal services in the District oi, Columbia and in the field, $10,000. _ _ CONTINGENT rzxrmrsns, DEPARTMENT or Commncn: For con- °'“°“'“°"‘ °""""‘ trngent and miscellaneous expenses of the oiHces and bureaus of the department, for which appropriations for contingent and miscellane- 0113 expenses are not specrlicall made, including fpurchase of professronal and scientific books, law books, books of re erence, periodicals, blank books, pamphlets, maps, newspapers (not exceeding $2,500); stationery, furniture and repairs to same, carpets, matting, oilcloth, lile cases, towels, ice, brooms, soap, sponges, uel, lighting and heatmg} Purchase, exchange, maintenance and care of horses, horsedrawn passengencarryrng vehicles, and motor—propelled trucks, and bicycles, to be used only for ofHcial purposes; freight and express Charges, postage to fore` countries, tele aph and telephone service, typewriters, a di maclhlines, and other Ebor-saving devices, including their repair ahd exchange; repairs to building occbrzpied by offices of the Secretary of Commerce; storage of documents onging to the
