144 8 74TH C ONGRESS . SESS. II . CH. 489. JUNE 4, 193 6. shall be available for the purchase of motor-propelled passenger- carrying vehicles necessary for carrying out the provisions of said Act, including the replacement of not to exceed one such vehicle for use in the administrative work of the Bureau of Public Roads in the Depreciat ion on en- District of Columbia : Provided further, That, during the fiscal ear gineering, etc., equip- ment. 1937, whenev er perfo rming a uthorize d engin eering o r other service s in connection with the survey, construction, and maintenance, or im- provement of roads for other Government agencies the charge for such services may include depreciation on engineering and road- building equipment used, and the amounts received on account of such charges shall be credited to the appropriation concerned : Pro- Wa rehous e mai nte- vided further, That during the fiscal year 1937 the appropriations for the work of the Bureau of Public Roads shall be available for meeting the expenses of warehouse maintenance and the procure- ment, care, and handling of supplies, materials, and equipment stored therein for distribution to projects under the supervision of the Bur eau of Public Roads, a nd for sale and distri bution to other Reimb ursing cost of Government activities, the cost of such supplies and materials or material, etc_ the value of such equipment (including the cost of transportation and handling), to be reimbursed to appropriations current at the time additional supplies, materials, or equipment are procured, from the appropriation chargeable with the cost or value of such supplies, ti Laboratorre construe- materials, or equipment : Provided further, That not to exceed Vol. 42, p. 212; U. S. $500,000 from the administrative funds authorized by the Act C.,p. 959 . Vol. 46, p. 805; Ante, approved November 9, 1921, and Acts amendatory thereof or supple- p . 273. mental thereto, in addition to the amount remaining available under the authorizations contained in the Agricultural Appropriation Acts approved May 27, 1930, and May 17, 1935, shall be available for the construction of a laboratory, on a site already acquired, for perma- nent quarters for the testing and research work of the Bureau of Public Roads. The authorization of $2,500,000 for the survey, construction, reconstruction, and maintenance of main roads through unappro- priated or unreserved public lands, nontaxable Indian lands, or other Federal reserva tions o ther tha n the f orest r eservati ons, un der the provisions of the Act of June 24, 1930 (46 Stat ., p . 805), provided for by section 6 of the Highway Act of June 18, 1934 (48 Stat ., p . 994), for the fisc al ye ar 1 937, is h ereby can celed for said fis cal y ear and made applicable to the fiscal year ending June 30, 1938 . R oad constructi on through public lands, Federal reservations, etc . Time extended . Vol. 46, p. 805; Vol. 48,p.994. Agricultural Engi- neering Bureau . Salaries and expenses. General administra- tive expens es. Agricultural engi- neering. BUREAU OF AGRICULTURAL ENGINEERING SALARIES AND EXPENSES Ge neral ad ministr ative ex penses : F or neces sary ex penses f or gen- eral administrative purposes, including the salary of chief of bureau and other personal services in the District of Columbia, $37,600 . Agricultural engineering : For investigations, experiments, and demonst rations involvi ng the a pplicat ion of engineer ing pri nciples to agriculture, independently or in cooperation with Federal, State, county, or other public agencies or with farm bureaus, organizations, or individuals ; for investigating and reporting upon the utilization of water in farm irrigation and the best methods to apply in prac- tice ; the different kinds of power and appliances
- the flow of water
in ditches, pipes, and other conduits ; the duty, apportionment, and measurement of irrigation water ; the customs, regulations, and laws affecting irrigation ; snow surveys and forecasts of irrigation water supplies, and the drainage of farms and of swamps and other wet lands which may be made available for agricultural purposes ; for
