In June 1910 Congress passed an act to enable Arizona and New Mexico to form State constitutions and governments and to be ad mitted to the Union. In December of that year a proposed State constitution for Arizona was adopted by a convention held at Phoenix and was ratified by the people in February 1911. This constitution received the conditional approval of the Federal government in August 1911 and was referred to the people of the Ter ritory for amendment. On 14 Feb. 1912 the Territory became a State of the Union.
among the young est of the States, the literature of Arizona is voluminous. For a list of writings on the subject, consult Hector Alliot, of Arizona, (Los Angeles 1914). The publica tions of the Federal government cover a very wide range of subjects and are embodied in the reports and bulletins of the Bureau of Ameri can Ethnology of the Smithsonian Institution, the Bureau of the Census and the War Depart ment (especially the reports and narrations of various engineer officers of the army in the forties and fifties) ; the Mineral Resources of the United States, published by the Geological Survey, the reports of the governors of Ari zona published by the United States Depart ment of the Interior during the territorial gov ernment of Arizona; the bulletins of the United States Bureau of Labor Statistics, the circulars of the Children's Bureau, etc. For
more general information on various topics regarding Arizona, consult Bancroft, H. H., (History of Arizona and New Mexico' (San Francisco 1889); Benavides, Fray Alonso, 'Memorial' (trans. by Mrs. E. E. Ayer; anno tated by F. W. Hodge and C. F. Lummis, Chicago 1916); Bolton, H. E., 'Spanish Ex ploration in the Southwest, 1542-1706' (New York 1916); Bourke, J. G., 'The Snake-Dance of the Moquis of Arizona' (ib. 1884); id., 'An Apache Campaign' (ib. 1886); id., 'On the Border with Crook' (ib. 1891); Cones, E., 'On the Trail of a Spanish Pioneer; The Diary and Itinerary of Francisco Games' (ib. 1900); Dellenbaugh, F. S., 'Romance of the Colorado River' (ib. 1903) ; DeLong, S. R., 'History of Arizona' (San Francisco 1905); Farish, T. E., 'History of Arizona' (Phoenix 1915); Hough, Walter, 'Archeological Field Work in North eastern Arizona' (Washington 1903) ; id., 'Cul ture of the Ancient Pueblos of the Upper Gila' (ib. 1914); id., 'The Hopi Indians' (Cedar Rapids 1915) • James, G. W., 'In and Around the Grand Canyon' (Boston 1900); id., 'Ari zona the Wonderland' (ib. 1917) McClintock, J. H., 'Arizona, Prehistoric, Aboriginal, Pi oneer, Modern' (Chicago 1916); Powell, J. W., 'Report of Explorations of the Colorado of the West' (Washington 1874) ; Prudden, T. M., 'On the Great American Plateau' (New York 1906).