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      Knowledge is Power

      Scientific American April 15, 1905

      Pumping the Comstock Lode Mines

      • By Carl George P. De Laval on April 15, 1905

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      More in the April 15, 1905 issue of Scientific American
      • Contemporary Electrical Science
      • Impulse and Reaction Turbines
      • The Mycenaean Palace at Nippur
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