University of Arizona

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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.