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      Scientific American November 22, 1902

      The Physiology of Certain Colors

      • By James Weir Jr. on November 22, 1902

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      More in the November 22, 1902 issue of Scientific American
      • Correspondence - November 22, 1902
      • Popp-Branly Aerial Telegraphy Systems
      • Head-On Collision of Trains in Los Angeles, Cal
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