f ibrars of t§c gtuscuin 



OF 



COMPARATIVE ZOOLOGY, 



AT DARVAKD COLLEGE, CAMBRIDGE, MASS. 

 iFounlrrt bs prfbatc suiscrfptfon, Tn 1861. 



Deposited by ALEX. AGASSIZ. 



No. ^ /^ 1^ 



4^'^._aU^. xax^ 



