tvi^ 



2/0'?, I 





OF 



COMPARATIVE ZOÒLOGY, 



AT DAKVAGD COLLEGE, CAMBRIDGE, MASS. 

 jFounìieTi bj; prfbnte stitjscrfjitfon, fn 1861. 



Deposited by ALEX. AGASSIZ. 



n No.J'i, H-l! 



1 



