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  1. By: Schwann, Harold
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1906
    Date: 1906
    Page Range: 101--111
    Publication Info: London Academic Press, [etc.] 1833-1965
  2. By: Thomas, Oldfield, - Schwann, Harold
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1904
    Date: 1904
    Page Range: 171--183
    Publication Info: London Academic Press, [etc.] 1833-1965
  3. By: Thomas, Oldfield, - Schwann, Harold
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1905
    Date: 1905
    Page Range: 129--138
    Publication Info: London Academic Press, [etc.] 1833-1965
  4. By: Thomas, Oldfield, - Schwann, Harold
    Type: Article
    In: Proceedings of the Zoological Society of London
    Volume: 1906
    Date: 1906
    Page Range: 159--168
    Publication Info: London Academic Press, [etc.] 1833-1965
  5. By: Schwann, Harold
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 13
    Series: 7
    Date: 1904
    Page Range: 70--73
    Publication Info: London Taylor and Francis, Ltd
  6. By: Schwann, Harold
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 13
    Series: 7
    Date: 1904
    Page Range: 421--426
    Publication Info: London Taylor and Francis, Ltd