^^.Y 



.U.A ^t^ 



1 





Jibrarg oî t^e fflusatm 







OF 







COMPARATIVE ZOOLOGY, 







AT HARVARD COLLEGE. CAMBRIDGE, MASS. 







i?ounîieïr lij prîbatc suftscrîptîon, m 1861. 







Deposited by ALEX. AGASSIZ. 







No. So^ 





