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      Scientific American May 04, 1912

      The Recent Flood in the New Subway at Berlin

      A Serious Accident in the Section under Construction Admits the River to the Completed and Operating Section Also

      • May 4, 1912

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      More in the May 04, 1912 issue of Scientific American
      • A Direct Readinǵ Accelerometer
      • Our Immiǵration Laws from the Viewpoint of National Euǵenics
      • A Flyinǵ Laboratory
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