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      Scientific American July 06, 1907

      The Modern Gold Ship

      How it has Invaded the Land of California.

      • By George Ethelbert Walsh on July 6, 1907

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      More in the July 06, 1907 issue of Scientific American
      • An Automobile Vacuum Cleaning Plant
      • Soldering and Soldering Processes
      • An Electrolytic Rectifier for Amateurs
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