s. 



^573 ■ 



^ibrarg of % Ifhtseum 



OP 



COMPARATIYE ZOÖLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE, MASS. 

 jFounörti Ijb prfSnte subscrfptfon, Cn t86l. 



Deposited by Alex. Agassiz 

 fromthe Library of LOUIS AGASSIZ. 





