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      Celebrate Math Awareness Month

      Scientific American October 11, 1884

      The Amalgamation of Silver Ores

      Description of the Francke “Tina” or Vat Process for the Amalgamation of Silver Ores *

      • By Edgar P.

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      More in the October 11, 1884 issue of Scientific American
      • Recent Decisions of the Commissioner of Patents Concerning Trade Marks and Labels
      • Halesia Hispida
      • Possibilities of the Telephone
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