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  1. By: Walker, Robert
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 10
    Series: 3
    Date: 1862
    Page Range: 13--17
    Publication Info: London Taylor and Francis, Ltd
  2. By: Walker, Robert
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 11
    Series: 3
    Date: 1863
    Page Range: 73--80
    Publication Info: London Taylor and Francis, Ltd
  3. By: Walker, Robert
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 14
    Series: 3
    Date: 1864
    Page Range: 200--209
    Publication Info: London Taylor and Francis, Ltd
  4. By: Walker, Robert
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 12
    Series: 3
    Date: 1863
    Page Range: 382--388
    Publication Info: London Taylor and Francis, Ltd