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  1. By: Haeckel, Ernst,
    Publication info: London, Kegan Paul, Trench & Co, 1883
    Holding Institution: University of California Libraries
    Subjects: Anatomy, Comparative  Embryology, Human  Evolution  Man, Origin of  
  2. By: Heineman, Theodore William,
    Publication info: Chicago, Forbes & company, 1908
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Man, Origin of  Prehistoric peoples  Social sciences