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      Scientific American November 1925

      Why Hair Turns Gray

      A Study of the Developing Hair Through the Microscope Reveals the Secrets of Color Production and Color Loss

      • By Leon Augustus Hausman on November 1, 1925

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      More in the November 1925 issue of Scientific American
      • Every Crime is Entrenched Behind a Lie
      • Linking Mexico and California
      • Science and Money, November 1925
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