Oi^"^ 



I JL^ 



Jibrarg ai i^t 



"ff^mmra 



OF 





COMPARATIYE 



ZOÖLOGY, 



AT HAßVÄßD COLLEGE, CAMBRIDGE, MASS. 



JFounttc^ bs jjtfbate sufiscrfptfon, fn 1861. 



No. r-^n^ 





