SIXTY-EIGHTH CONGRESS. Sess. I. C11. 204. 1924. 23] Testing machines: For maintenance and operation of testing ma- , T°;“i*8 ¤¤¤¢hi¤¤S cliines, including personal services in connection therewith in the or P ysl°°l°°°Sm”s' District of Columbia and in the field, for the determination by the Bureau of Standards of the physical constants and the properties of materials as authorized by law, $39,460. Investigation of fire—resisting properties: For investigation of fire- ,,,Fi,§,§§§§§§§;“¤ bum resisting properties of building materials and conditions under which S i they may be most efficiently used, and for the standardization of types of appliances for fire prevention, including personal services in the District of Columbia and in the field, $29,000. Investigation of public-utility standards: For investigation of the ot1;ii3l?Ili:lr1i$§Ii?s.°t£'° standards of practice and methods of measurements of public utilities, such as gas, electric light, electric power, water, telephone, central station heating, and electric railway service, and the solution of the problems which arise in connection with standards in such service, including personal servicm in the District of Columbia and in the field, $105,000. _ Testing miscellaneous materials: For testing miscellaneous mate- ¤,'§§§2,’§§,,§,‘,§S°°1l“` rials, such as varnish materials, soap materials, inks, and chemicals, including supplies for the Government departments and independent establishments, including personal services in the District of Columbia and in the field, as authorized by law, $45,260. Radio research: For investigation and standardization of methods ,,§,’°‘§§,_ “°“d“‘d*“*‘ and instruments employed in radio communication, including personal services in the District of Columbia and in the field, $45,680. Color standardization: To develop color standards and methods sciseiiiliiiiiith g$.°r of manufacture and of color measurement, with special reference to their industrial use in standardization and specification of colorants such as d *estuffs, inks, and pigments, and other products, paint, paper, anti textiles, in which color is a pertinent property, including personal services in the District of Columbia and in the field, $10,000, WESITY p‘°°“°“ "’°‘* Investigation of clay products: To study methods of measurement and technical processes used in the manufacture of potte , 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, $30,000. Standardizing mechanical appliances: To develop methods of test- ¤uii»i:¤iii>li»iii3gsi°°* ing and standardizing machines, motors, tools, measuring instru- M h i I h _ ments, and other apparatus and devices used in mechanical, hydraulic, drauli:,aiiii agioéaulié and aeronautic engineerinv; for the comparative study of types of d°"’°°°•°‘°· apparatus and methods ofj operation, an for the establishment of standards 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 purely scientific nature, including personal services in the District of Columbia and in the field, $30,000. Investi ation of optical glass: For the investigation of the prob- t,§,{’°*°“l*‘]“’“"°"°" ' lems involved in the production of optical glass, including personal services in the District of Columbia and in the field, $25,000. Investigation of textiles: To investigate textiles, paper, leather, S,2`n P°*·°*°·· and rubber in order to develop standar s of quality and methods of measurement, including personal services in the District of Columbia and in the field, $27,000. _ _ S Sugar standardization: For the standardization and of mum s""“d“'°i‘° sugar-testing apparatus; the development of technical specifications for the various grades of sugars, with particular reference to urgent problems made pressing by conditions following the war, especially