The agricultural experiment stations in the United States . tation of differentkinds of plants to soil and climate, and the methods of cultivation bestsuited to local conditions. As Arizona is located in the great aridregion, irrigation is a problem of first and fundamental far a general survey has been made of the conditions in severalimportant valleys of the Territory with reference to the economicdevelopment of irrigation/ The chemist has made analyses of numer-ous samples of water, and for several years a soil survey of the Terri-tory has been in progress. The special crops
The agricultural experiment stations in the United States . tation of differentkinds of plants to soil and climate, and the methods of cultivation bestsuited to local conditions. As Arizona is located in the great aridregion, irrigation is a problem of first and fundamental far a general survey has been made of the conditions in severalimportant valleys of the Territory with reference to the economicdevelopment of irrigation/ The chemist has made analyses of numer-ous samples of water, and for several years a soil survey of the Terri-tory has been in progress. The special crops which are receiving most attention are alfalfa,wheat (PI. XI, fig. 2), barley, and the subtropical fruits which thrivein the southern part of the Territory. It has been found that the datepalm (PI. XII, fig. 1) succeeds in southwestern Arizona, and to theculture of this tree the station is paying much attention. A consider-able amount of historical data bearing on the history of the plant in U. S. Dept. of Agr., Bui. 80, Office of Expt Stations. Plate Fig. 2.—Arizona Station—Greenhouses. U. S. Dept. of Agr, Bui. 80, Office of Expt Statioi Plate XI.
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