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      Knowledge is Power

      Scientific American April 04, 1914

      Softening Souple Silk, One Of The Largest Forest Nurseries

      • April 4, 1914

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      More in the April 04, 1914 issue of Scientific American
      • Attractions of Variable-star Observing
      • Motion Pictures of Vocal Chords
      • The Electrolysis of an Egg
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