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      Knowledge is Power

      Scientific American August 18, 1917

      Dropping Bombs from Aeroplanes

      An Ingenious Instrument Employed by the Germans

      • By Jean-Abel Lefrance on August 18, 1917

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      More in the August 18, 1917 issue of Scientific American
      • Anomalies in the Animal World—Part III
      • Games of the Labrador Eskimo
      • The Breadfruit
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