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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Washburn, F. L. (Frederic Leonard),
    Publication info: [N.p, 1898]
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: American oyster  Oyster fisheries  Spawning  
  2. By: Washburn, F. L. (Frederic Leonard),
    Publication info: [N.p, 1898]
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: American oyster  Oyster fisheries  Spawning  
  3. By: Washburn, F. L. (Frederic Leonard),
    Publication info: Salem, Oregon, W.H. Leeds, state printer, 1900
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: American oyster  Oyster fisheries  Spawning