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      Knowledge is Power

      Scientific American January 30, 1909

      The Heavens in February

      • By Henry Norris Russell on January 30, 1909

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      More in the January 30, 1909 issue of Scientific American
      • Correspondence - January 30, 1909
      • Index of Inventions - January 30, 1909
      • Taximeter Frauds
      View Full Contents
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