Ä,? 



^ibrarü of i^t Swsntm 



OF 



COMPARATIYE ZOÖLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE, MASS. 

 JFountietr bj ptibate suöscrfjjtfon, in 1861. 



Deposited by ALEX. AGASSIZ. 



h^3,s.,np 



