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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Bolton, Herbert,
    Publication info: Manchester, J.E. Cornish, 1893
    Holding Institution: University of Toronto - Gerstein Science Information Centre
  2. By: Bolton, Herbert,
    Publication info: London, Printed for the Palaeontographical society, 1921-22
    Holding Institution: Smithsonian Libraries and Archives
  3. By: Bolton, Herbert,
    Publication info: London, Printed for the Palaeontographical society, 1921-22
    Holding Institution: University of California Libraries
  4. By: Bolton, Herbert,
    Publication info: Manchester, 1904-05
    Holding Institution: University of Toronto - Gerstein Science Information Centre