Eissler, Manuel The Metallurgy of Gold, a Practical Treatise on the Metallurgical Treatment of Gold-bearing Ores, Including the Processes of Concentration, ... the Assaying, Melting, and Refining of Gold
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The Metallurgy of Gold, a Practical Treatise on the Metallurgical Treatment of Gold-bearing Ores, Including the Processes of Concentration, ... the Assaying, Melting, and Refining of Gold