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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Heim, Arnold,
    Publication info: Kopenhagen, B. Lunos Buchdr, 1910
    Holding Institution: University of Toronto - Gerstein Science Information Centre
  2. By: Heim, Arnold,
    Publication info: Jena, G. Fischer, 1916
    Holding Institution: University Library, University of Illinois Urbana Champaign