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      Knowledge is Power

      Scientific American May 22, 1915

      Connecting Idaho with the Sea

      Completion of the Celilo Canal along the Columbia River

      • By Fred W. Vincent on May 22, 1915

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      More in the May 22, 1915 issue of Scientific American
      • Visible Speech
      • War, Humanized and De-Humanized, The Renewing of Italy's Navy and more
      • The Energy of Projectiles
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