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      Scientific American May 28, 1921

      Inventions New and Interesting

      A Department Devoted to Pioneer Work in the Arts

      • May 28, 1921

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      More in the May 28, 1921 issue of Scientific American
      • The Roger Bacon Manuscript
      • Molasses for Fuel
      • The Senate and the People, A New Dispensary of Popular Science and more
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