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IRbrarg oi % Ufasewm 



OF 



COMPAUATIYE ZOÖLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE, MASS. 



jFounTJetr tjj gprfbate suöscrfption, In 1861. 



C>0 cn^A^arJn^C '. 



No.y£ 3y, 



