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      Scientific American August 1927

      Our Worst Storm, the Tornado

      What Combination of Natural Forces Causes Tornadoes, and Why They Hit the West So Hard

      • By W. J. Humphreys on August 1, 1927

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      More in the August 1927 issue of Scientific American
      • Are You Socially Intelligent?
      • Household Inventions, August 1927
      • New Trails of Ancient Man
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