In response to the demand for a brief historical review of the mineral industry in Arizona, the Arizona Bureau of Mines issued in 1951 the publication titled "The Mineral Resources of Arizona" as Bulletin 159 of its Mineral Technology Series. Inasmuch as the information contained therein has been much sought after, especially by high school students and laymen, in general, and as considerable advances have been made in mining in Arizona since 1951, it has been deemed expedient to give additional service by issuing this extensive revision of the earlier bulletin. It is hoped this revised work, carrying the title "The Mineral Industries of Arizona - A Brief History of the Development of Arizona's Mineral Resources" and identified as Bulletin 169, will serve as a ready reference for information of general interest concerning the nature, occurrence, mining history, and production of the more important economic mineral materials of Arizona. 20 p.