

/ . OF 



COMPARATIVE ZOÔLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE, MASS. 

 i?ounîieït ïig prîbate subscïtptfon, în 1861. 



^^'-^■^_'V.^_'^^,^'X,"-_'>, 



/ 

 Deposited by ALEX. AGASSIZ. 





