SIXTY-EIGHT H CONGRESS. Sess. II. Ch. 452. 1925. 1175 Provided, That section 192 of the Revised Statutes 1 Pf¤·*¤· to such purchase of newspapers from this approprigszioiillosiiniidplfiai ii£siii&$¢i$h19¤ibt°`¤i)fi? every other expense incident thereto, including supplies, equipment pl%€;lfi,$‘,,pe,,S,S expenses of travel and subsistence, purchase, exchange as part pay: ment for, maintenance, and operation of motor—propelled passengercarrying vehicles, and the construction, maintenance, and repair of necessary camp buildings and appurtenances thereto, $456,000, of S - . th D which amount not to exceed $56,200 may be expended for personal tricilvms m 6 isservices in the District of Columbia; For development of oil shale, including construction of necessary 0 ?,?,§{’“l°* °‘°·· d°'°1‘ plant; purchase, lease, or condemnation of necessary land for erec- D l tion of plant; purchase or mining of shale, operation of plant, and for all necessary expenses incident thereto, including clerical and technical assistance in the District of Columbia or elsewhere, to be immediately available, $90,000; _ For enforcement of the provisions of the Acts of February 25, i,,gE{‘£,'§§§€,}€8°]i.*c'?,l§’,EZ 1920, and October 2, 1917, relating to the mining of coal, phosphates, ml d°P°S“S· _ sodium, and potassium on the public domain, and for enforcement .mY§l‘2$}j p' “" V"' of the laws relating to the mining of minerals other than oil, oil shale, and natural gas, on Indian and public lands, and every other expense incident thereto, including supplies, equipment, expenses of travel and subsistence, purchase, exchange as part payment for, maintenance, and operation of motor-propelled passenger—carrying _ _ vehicles, $86,920; o which amount not to exceed $15,000 may be ,,§f""°“ “‘ “‘° Dl°‘ expended for personal services in the District of Columbia; Mm, . t For the employment of personal services and all other expenses stationslig °mmm°° in connection with the establishment, maintenance, and operation of $§°3’§’j‘§f’§g,_ mining experiment stations, authorized by the Act approved March 3, 1915, $200,000, of which amount not to exceed $15,000 may be expended for personal services in the District of Columbia; Pittsburgh, ra, as- For care and maintenance of buildings and grounds at Pittsburgh, °i°°' Pennsylvania, including personal services, the purchase, exchange E’P°°—‘“·_ as part payment for, operation, maintenance, and repair of passenger automobiles for official use, and all other expenses requisite for and incident thereto, including not to exceed $5,000 for additions and im rovements $65,000· Persgns employed durini the fiscal year 1926 in field work out- ¤e'i;1°Q‘i¤»°;`ir¤i,»§ya$1i·i¤°#i·$i side of the District of Coliumbia under the Bureau of Mines may ‘°°"’“‘° ""*“· be detailed temporarily for service in_the District of Columbia for purposes of preparing results of their field work; all persons so - detailed shall be paid in addition to their regular compensation only their actual traveling expenses or per diem in lieu of subsistence in p,,,,,,_ going to and returning therefrom: Provided, That nothing herein sag?§;*;;€sf°‘ ¤°¤=¤· shall prevent the payment to employees of the Bureau of Mines of their necessary expenses, or per diem in lieu of subsistence while on temporary detail in the District of Columbia, for puiéposes only of mneprons to be mae consultation or investigations on behalf of the Unite States. All "° °“‘· details made hereunder, and the purposes of each, -dllI`111g the preceding fiscal year shall be replorted in the annual estimates of appropriations to Congress at the beginning of each regular session thereof · . . The Secretary of the Treasury may detail medical officers of the Hg;°{§‘1§J$?.1"_ P“bh° Public Health Service for cooperative health, safety, or sanitation work with the Bureau of Mines, and the compensation and expenses of the officers so detailed may be paid from the applicable appropriations made herein for the Bureau of Mines; _ ,,§d‘§°’“‘“°‘“ ‘“°’ Government fuel yards: For the purchase and transportation of mggrchase gtilruei. fuel; storing and handling of fuel in yards; maintenance and operation of yards and equipment, including motor-propelled passengercarrying vehicles for inspectors, purchase of equipment, rentals,