SIXTY-EIGHTH CONGRESS. Sess. I. Ch. 264. 1924. 419 per mile for a motor cycle or seven cents per mile for an automobile used for necessary official business; Total, from Reclamation fund, $10,856},000. UNITED STATES GEOLOGICAL SURVEY. °°°'°‘·"°”‘ S“"°’· ssmxms. S“l“"°S‘ Director, and 0 For the Director of the Geological Survey and other personal P°*S°¤¤•=l· mw services in the District of Columbia in accordance with “The Classi- Hcation Act of 1923," $54,760. General expenses. GEINTERAL nxrnusrs. For every expenditure requisite for and incident to the authorized ¤¤iiv`i¢iii:r$i:il°u M work of the Geological Survey, including personal services in the ‘*”“""m‘ District of Columbia and in the Held, including not to exceed $10,000 for the purchase and exchange, and not to exceed $30,000 for the v°m°l ’°“” hire, maintenance, repair, and operation of motor-propelled and horse-drawn passenger-carrying vehicles for Held use only by geologists, topographers, enlgineers, and land classiHers, and the Geological L urvey is authorize to exchange unserviceable and worn-out passengencarrying and freight-carrying vehicles as part payment or new freight-carrying vehicles, and including not to exceed $5,000 for necewa traveling expenses of the Director and members of the Mmdmm u R Geological lSurvey‘ acting under his direction, for attendance upon meetings, em. °° meetings of technical, professional, and scientiHc societies when required in connection with the authorized work of the Geological Survey, to be expended under the regulations from time to time Eresicribed by the Secretary of the Interior, and under the following ea s: For topographic surveys in various portions of the United States, veisowmphic mp including lands in national forests, $500,000: Provided, That no Qegvtidiztion on mpgart of this appropriation shall be expended in cooperation with g@g¤m*°¤* with 'tates or munici alities except upon the basis of the State or munici- ' pality bearing all of the expense incident thereto in excess of such ali; amoémt asi is necessary for the Geological Survey to perform its s are o stan ard to o hic surveys; For geologic surveiysgiiilihe various portions of the United States, Gwwc Smm` $333,722, of which amount not to exceed $10000 may be used for work in volcanology in the Hawaiian Islands and not to exceed _ $15,000 for examination of arsenic·bearing ores, to be immediately A"°°l°`b°°"°' °'°°' available; cnemnea ma physi- For chemical and physical researches relating to the geology of muawaia. the United States, includin researches with a view of detennming, Pom,. mu geolo `cal conditions favorzile to the presence of deposits of potas ' salts,€40,000; Alaska miami re- For continuation of the investigation of the mineral resources of scum:. Alaska, $75,000, to be available immediately; wm, supply mm For gauging streams and determining the water supply of the tizsricns- United States, the investigation of underground currents and artesian wells, and the preparation of reports upon the best methods of _ utilizing the water resources, $170,000, of which $25,000 may be used ‘m°°"‘° w°m‘ to test the existence of artesian and other underground water supplies suitable for irrigation in the arid and semiarid regions by boring wells; Cmuing ,811,,5 ,0,, For the examination and classiHcation of lands requisite to the vnlm-sed Mmesmdsdctermination of their suitability for enlarged homesteads, stock- ”°°°l"°°°'°’°°” raising homesteads, public watering places, and stock driveways, or other uses, as required by the public and laws, $280,000; M For engraving and printing geologic maps, $110,000; ""