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  1. By: Ridgway, John L., - Brewster, William, - Ridgway, Robert,
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    BHL Collections: William Brewster Papers
  2. By: Eckstorm, Fannie Hardy, - Ridgway, John L., - Fuertes, Louis Agassiz,
    Publication info: Boston and, Houghton, Mifflin and company, 1901
    Holding Institution: Multiple institutions
    BHL Collections: Women in Natural History