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      Scientific American May 25, 1901

      An Interesting Insect--Thyridopteryx EphemerFormis

      • By N. Hudson Moore on May 25, 1901

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      More in the May 25, 1901 issue of Scientific American
      • Government Tests of Maximite at Sandy Hook
      • Pipe Galleries for the Rapid Transit Subway
      • The "Shamrock" Under Sail
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