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      Scientific American May 18, 1912

      Masons' and other Marks on Saxon Churches

      Some Disputed Points in Archaeoloǵy

      • By Leo L. W. Gaye, Arthur Galpin on May 18, 1912

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      More in the May 18, 1912 issue of Scientific American
      • American Aeronautic Motors
      • The Present Position of Wireless Teleǵraphy
      • Effect upon the Ears of Rapid Transit throuǵh Tunnels
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