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      Knowledge is Power

      Scientific American February 1923

      The World's Largest Vehicular Tunnel

      Construction and Method of Ventilation of the Hudson River Tunnel

      • By J. Bernard Walker on February 1, 1923

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      More in the February 1923 issue of Scientific American
      • A Mechanical Solution of a Literary Problem
      • Automobile Notes, February 1923
      • Fighting the Friction Fiend
      View Full Contents
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