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      Scientific American April 14, 1906

      An Apparatus for Recording the Oscillations of Lighthouse Towers

      • By Alfred Gradenwitz on April 14, 1906

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      More in the April 14, 1906 issue of Scientific American
      • Effects of Snow on the Third Rail
      • Notes and Queries
      • The Inundation of the Salton Basin by the Colorado River and How It Was Caused
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