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  1. By: Worthen, Amos Henry, - Lindahl, Josua, - Illinois. State Geologist
    Publication info: Springfield, Ill, State Journal Steam Press, 1866-1890
    Holding Institution: Multiple institutions
  2. By: Worthen, Amos Henry,
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
  3. By: Lesquereux, Léo, - Worthen, Amos Henry, - Western Engraving Co.,
    Publication info: Springfield, Ill, Geological Survey of Illinois, 1870
    Holding Institution: Smithsonian Libraries and Archives
    BHL Collections: Unearthed! Smithsonian Libraries' Paleo Collection
  1. By: Meek, F. B. (Fielding Bradford), - Worthen, Amos Henry,
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 17
    Date: 1865
    Page Range: 245--273
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  2. By: Meek, F. B. (Fielding Bradford), - Worthen, Amos Henry,
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 17
    Date: 1865
    Page Range: 138--143
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,