i751 



Ale!x. Agassiz. 



I^ibrarg of tlje SEtitseum 



OP 



COMPARATIVE ZOOLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE. MASS. 

 JFountrc^ bj prfbatc subscrfptfon, fn 1861. 



Deposited by ALEX. AGASSIZ. 



No. /■Z,U,2j 



