University of Arizona

Notes of Trip to Visit Mines and Smelters

Figure of Machine Involved in Smelting Process

Notes about the various smelters and mines visited throughout the United States, including a visit to Douglas, Ariz., Nov. 21-23, 1912, to the Copper Queen smelting works and the Calumet and Arizona smelting works. Contains an index to the report and 14 blueprints of mining and smelting machinery.