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      Scientific American April 27, 1912

      Parasitic Adaptation

      A Case of Degenerative Evolution from Higher to Lower Forms

      • By B. M. Underhill on April 27, 1912

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      More in the April 27, 1912 issue of Scientific American
      • Dr. Henri Martin's Discoveries at La Quina
      • Reviews of New Books
      • Enǵineerinǵ Feats and Cheaper Food Supplies
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