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      Scientific American May 07, 1881

      Nitrogen. Symbol N. Combining Weight, 14

      • By T. A. Pooley on May 7, 1881

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      More in the May 07, 1881 issue of Scientific American
      • Dwarf and Monstrous Trees in China and Japan
      • Smith's Two-Ton Anchor
      • The Cultivation of Celery
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