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      Knowledge is Power

      Scientific American February 03, 1894

      Studies of the Phenomena of Simultaneous Contrast Color; And on a Photometer for Measuring the Intensities of Lights of Different Colors

      • By Alfred M. Mayer on February 3, 1894

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      More in the February 03, 1894 issue of Scientific American
      • Alloys
      • Draught Dogs
      • Some of the Ancient uses of Asphaltum by the Aborigines of California
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