61 STAT.] 80TH CONG., IST SESS.-CH. 356-JULY 30, 1947 into agreements with the United States or any of its agencies on policies and general programs for the saving of its soil by the extension of Federal aid to any soil conservation district in such State, the agreements made by or on behalf of the United States with any such soil conservation district shall have the prior approval of such central State agency before they shall become effective as to such district, as follows: Soil conservation research: For research and investigations into the character, cause, extent, history, and effects of erosion, soil and moisture depletion and methods of soil and water conservation (including the construction and hydrologic phases of farm irrigation and land drainage, and water regulation to conserve the soil and reduce fire hazards in the Everglades region of Florida, except that expenditures for all work in the Everglades region shall be limited to a sum not in excess of funds made available for such work by the State of Florida, or political subdivisions thereof); and for con- struction, operation, and maintenance of experimental watersheds, stations, laboratories, plots, and installations, $1,048,000. Soil conservation operations: For carrying out preventive measures to conserve soil and water, including such special measures as may be necessary to prevent floods and the siltation of reservoirs, and including the improvement of farm irrigation and land drainage, the establishment and operation of conservation nurseries, the mak- ing of conservation plans and surveys, and the dissemination of information, $38,000,000: Provided,That no part of this appropria- tion may be expended for soil and water conservation operations in demonstration projects. LAND UTILIZATION AND RETIREMENT OF SUBMARGINAL LAND For expenses necessary to carry out the provisions of title III of the Bankhead-Jones Farm Tenant Act, approved July 22, 1937 (7 U. S . C. 1010-1012), and the provisions of the Act approved August 11, 1945 (Public Law 179, Seventy-ninth Congress), including personal services in the District of Columbia, $1,600,000. PRODUCTION AND MARKETING ADMINISTRATION CONSERVATION AND USE OF AGRICULTURAL LAND RESOURCES For expenses necessary to enable the Secretary to carry into effect the provisions of sections 7 to 17, inclusive,the the Soil Conservation and Domestic Allotment Act, approved February 29, 1936, as amended (16 U. S. C. 590g-590q), and the provisions of the Agricultural Adjustment Act of 1938, as amended (7 U. S. C. 1281-1407) (except the provisions of sections 201, 202, 303, 381, and 383 and the provi- sions of titles IV and V), including personal services in the District of Columbia; not to exceed $6,000 for the preparation and display of exhibits, including such displays at State, interstate, and inter- national fairs within the United States; $228,000,000, to remain available until December 31, 1948, for compliance with programs under said provisions of the Agricultural Adjustment Act of 1938, as amended, and the Act of February 29, 1936, as amended, pursuant to the provisions of the 1947 programs carried out during the period July 1, 1946, to December 31, 1947, inclusive: Provided, That not to exceed $24,500,000 of the total sum provided under this head shall be available during the current fiscal year, for salaries and other administrative expenses for carrying out such programs, including Everglades region, Fla. Demonstration projects. 50 Stat. 525. 59 Stat. 532. 7U.8.C.i1011 note. Soil conservatlon. 49 Stat. 1148 . Ante, p. 494. 52 Stat. 31 . Ante, p. 451; post, p. 721. 52 Stat. 36 et seq. 7U. S.C. 5§1291, 1292, 1303 , 1381 , 1383, 1401-1407, 1501-1518 . Post, pp. 718 ,719. Administrative ex- penses.