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  1. By: Bolyai, János, - Halsted, George Bruce,
    Edition: 4th ed.
    Publication info: Austin, Texas, The Neomon, 1896
    Holding Institution: University of California Libraries
    Subjects: Geometry, Non-Euclidean  Hyperspace  
  2. By: Williams, Cora L. (Cora Lenore), - Markham, Edwin,
    Publication info: New York, Alfred A. Knopf, 1916
    Holding Institution: University of California Libraries
    Subjects: Evolution  Fourth dimension  Hyperspace  Spiritualism