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      Scientific American July 22, 1916

      A Motion Picture Drama from the Ocean Bottom, Baseball Batting Practice with an Automatic Pitching Machine, and more

      • By Loring Brent on July 22, 1916

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      More in the July 22, 1916 issue of Scientific American
      • Recently Patented Inventions-July 22, 1916
      • Inventions New and Interesting-July 22, 1916
      • Strategic Moves of the War, July 14th, 1916
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