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      Knowledge is Power

      Scientific American April 22, 1911

      The Total Solar Eclipse of 1911

      The Moon's Shadow Traces a Course from Australia to Central America

      • By Frederic R. Honey on April 22, 1911

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      More in the April 22, 1911 issue of Scientific American
      • An Adjustable Rose Reamer
      • How to Rebore a Crank-pin Hole in a Locomotive Driving-wheel
      • Removing Old Boiler Tubes, A Handy Drill Socket and more
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