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      Scientific American April 29, 1905

      The Cooper Hewitt Mercury Vapor Converter

      • By A. Frederick Collins on April 29, 1905

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      More in the April 29, 1905 issue of Scientific American
      • An Efficient Disk Transmission for Automobiles
      • New Masonry Drydock at the Boston Navy Yard
      • Pompeiian Silver Ware
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