At.Hx . AoAL i Oia. 



^ibrarg of % Htuswm 



OF 



COMPARATIVE ZOOLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE, MASS. 



jFountieto bj> pribate subscrfptfon, fn 1861. 



Deposited by ALEX. AGASSIZ. 

 p/ No. /tyff 



