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      Knowledge is Power

      Scientific American June 19, 1909

      A New Type of Great Lake Ore Steamer

      • By Day Allen Willey on June 19, 1909

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      More in the June 19, 1909 issue of Scientific American
      • Building Bricks of Glass
      • Lantern Projection Distances
      • Sir George Darwin on “Tides in the Solid Earth.”
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