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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Crystal, Maxwell M
    Type: Article
    In: Bulletin of the Brooklyn Entomological Society
    Volume: 44
    Series: new
    Issue: 3
    Date: 1949
    Page Range: 89--97
    Publication Info: Brooklyn, N.Y, The Society,
  2. By: Crystal, Maxwell M - Lachance, Leo E
    Type: Article
    In: The Biological bulletin
    Volume: 125
    Date: 1963-10-01
    Page Range: 270--279
    Publication Info: Woods Hole, Mass Marine Biological Laboratory
  3. By: Lachance, Leo E - Crystal, Maxwell M
    Type: Article
    In: The Biological bulletin
    Volume: 125
    Date: 1963-10-01
    Page Range: 280--288
    Publication Info: Woods Hole, Mass Marine Biological Laboratory