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Show 381 gress enumerated many authorized areas of research including, among others, "research relating to the conservation, develop- ment, and use of land, forest, and water resources for agricul- tural purposes."189 Noteworthy in this connection is the fact that a study recently undertaken pursuant to this statute com- prehends water salinity.170 Legislative provision has also been made for cooperative agricultural extension work between state agricultural colleges and the Department of Agriculture.171 Summary The interdependence of land and water has been recognized in a number of statutes concerning use of lands. These are aimed at water and land as inseparable resources, or are adapt- able to serving both. Sharply distinguished by its regulatory aspects from suc- ceeding land-use legislation is the 1893 provision for the pre- scribed jurisdiction of the California Debris Commission over hydraulic mining. Apart from this enactment, federal land-use legislation until the early thirties was concerned with forest lands, and prin- cipally with forest lands of the United States. Here, Congress has recognized the direct ties between land and water. Initi- ated before the turn of the century, the legislative foundation was broadened in 1911 to provide for a federal forest program on a national basis. Other forestry statutes also recognize the interrelations of land and water resources, some of the more recent being concerned with nonfederal forest lands as well. Still further recognition appears in legislation concerning national parks, Indian lands, the Tennessee Valley, and federal grazing lands. Federal interest in land-use practices was expansively broad- ened by 1935 and 1936 legislation, upon which are based two 189 Act of June 29,1935, § 1, 49 Stat. 436, as amended, 7 U. S. C. 427. ""Memorandum from the Research Administrator to the Secretary of Agriculture, "Recommended Initial Allotment for the Bankhead-Jones Re- search Fund, Fiscal Year 1950," Project S. R. F.-3-9, App. p. 2, endorsed by the Undersecretary of Agriculture, July 8, 1949. 171 Act of May 8,1914,38 Stat. 372, as amended, 7 U. S. 0. 341 et seq. |