7 t'k 



I 



ï^ibrarn of tije S^scum 



OP 



COMPARATIVE ZOOLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE, MASS. 

 jFounïieTi bij prfbate stiliscrfptfon, fn 1861. 



Deposited by ALEX. AGASSIZ. 



No. y^ö^Q 



