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      Scientific American July 17, 1880

      Some Recent Advances in Photography

      The Gelatino Bromide Process

      • By Captain Abney on July 17, 1880

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      More in the July 17, 1880 issue of Scientific American
      • A New Photometer
      • Engines of H.M.S. Nelson
      • Mode of Subaqueous Excavation Driving Piles, Or Making Solid Foundations in Quicksands or Unstable Soils
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