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  1. By: Tarr, Ralph S. (Ralph Stockman),
    Publication info: New York, Macmillan, 1897
    Holding Institution: University of Toronto - Gerstein Science Information Centre
  1. By: Wolff, John Eliot, - Tarr, Ralph S. (Ralph Stockman),
    Type: Article
    In: Bulletin of the Museum of Comparative Zoology at Harvard College
    Volume: 16
    Issue: 12
    Date: 1893
    Page Range: 227--233
    Publication Info: Cambridge, Mass The Museum 1863-