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      Memorial Day Sale

      Scientific American March 27, 1909

      Solar Electric Phenomena

      Their Relation to Terrestrial Magnetic Perturbations

      • March 27, 1909

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      More in the March 27, 1909 issue of Scientific American
      • An Automobile Tilting Dump Wagon
      • Joining Simplon with Loetschberg
      • The Manufacture of Smokeless Powder
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