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  1. By: Gehring, J. G. (John George), - Brewster, William,
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: (John George),  1851-1919  1857-1932  Brewster, William,  Correspondence  Gehring, J. G  Ornithology  
    BHL Collections: William Brewster Papers