fT>i^ ( a %cH 



y 7 . 



/f"h? 



Utbrari) of % IHusntnt 



OF 



COMPARATIYE ZOOLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE, MASS. 

 JfrmnTjeti bv pribate subscription, in 1861. 



Deposited by ALEX. AGASSIZ. 



/ No. 7&~&J i 



