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      Scientific American February 28, 1885

      The Electrometallurgic Treatment of Copper Matte for the Extraction of Copper

      • February 28, 1885

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      More in the February 28, 1885 issue of Scientific American
      • Improved Compound Engines
      • The Blanchard Furnace and Steam Generator
      • The Spectroscopic Examination of the Vapors Evolved on Heating Iron, Etc., at Atmospheric Pressure
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