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      Digital & 4-Year Archive

      Scientific American October 15, 1881

      Method of Determining the Relations of the Actinism of Different Lights to the same Illuminating Power

      • October 15, 1881

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      More in the October 15, 1881 issue of Scientific American
      • Ammonium.—Symbol Nh4.—Combining Weight 18
      • Double Refraction
      • Note on the Isolation of Strychnine
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