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      Knowledge is Power

      Scientific American October 1925

      Evolution, From the Nebula to 1925

      The Story Outlined by the Chart on the Opposite Page

      • By Albert G. Ingalls on October 1, 1925

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      More in the October 1925 issue of Scientific American
      • Notes and Queries, October 1925
      • Super-Radio to Span the Atlantic
      • The World's Largest Leper Colony
      View Full Contents
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