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  1. By: International Physiological Congress Liège, Belgium) - Fredericq, Léon,
    Publication info: Liège, Impr. H. Vaillant-Carmanne, 1892
    Holding Institution: Columbia University Libraries
  2. By: Fredericq, Léon,
    Publication info: Bruxelles, F. Hayez, 1879
    Holding Institution: Columbia University Libraries
  1. By: Fredericq, Léon,
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 19
    Series: 4
    Date: 1877
    Page Range: 195--197
    Publication Info: London Taylor and Francis, Ltd
  2. By: Fredericq, Léon,
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 19
    Series: 4
    Date: 1877
    Page Range: 197--198
    Publication Info: London Taylor and Francis, Ltd