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      Knowledge is Power

      Scientific American August 02, 1902

      The Heavens in August - August 2, 1902

      • By Henry Norris Russell on August 2, 1902

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      More in the August 02, 1902 issue of Scientific American
      • An Automatic Lightship
      • Neck-Yoke Attachment
      • Sponge Fishing in the Levant
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