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      Knowledge is Power

      Scientific American February 21, 1880

      Researches on Nitrification

      • By MM. Schloesing, Muntz on February 21, 1880

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      More in the February 21, 1880 issue of Scientific American
      • Certain Ultramarine Compounds
      • How to Determine the Specific Gravity of Liquids
      • New Spherometer
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