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      Scientific American May 1923

      A High-Pressure Tank to Cure the III Effects of Pressure, A Novel Surgical Tool and more

      • May 1, 1923

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      More in the May 1923 issue of Scientific American
      • Extinct Races of Ape-Like Man
      • Taking Nitrogen from the Air
      • The Handwriting on the Sky--the Most Recent and Compelling Method of Advertising, The Transport of Organic Substances in Plants and more
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