21 £- ! 



'%L(d Ö» 



Alex. AgaseijzL, 



OF 



COMPARATIYE ZOÖLOGY, 



AT OARYARD COLLEGE, CAMBRIDGE. MASS. 

 iFountJe^ 1)]) prfbatc sitbscrfptfon, fn 1861. 



Deposited by ALEX. AGASSIZ. 



No.J^^^- 





