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      Scientific American May 1935

      Safety in the Air

      More Improved Weather Service Needed, New Radio Aids Important, Weeding Out of Incompetent Pilots Held to be a Prime Necessity

      • By Reginald M. Cleveland on May 1, 1935

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      More in the May 1935 issue of Scientific American
      • Back to Prosperity with Housing
      • Polarized Light, Revolving Auto Service Station and more
      • The Biting Black Widow and Her Badly Built Web
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