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      Digital & 4-Year Archive

      Scientific American October 19, 1912

      Luminescence Analysis

      A New Test for Chemicals With the Aid of Violet Light

      • October 19, 1912

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      More in the October 19, 1912 issue of Scientific American
      • The Significance of Photo-Chemistry for the Theory of Vision, “Tempered Copper” Tools
      • Power Transmission from the Coal Mine
      • Tides and the Rigidity of the Earth
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