"WL"^^^ 



f ibrarg of lljfi ^usntm 



OF 



COMPARATIYE ZOÖLOGY, 



u 



AT HARVARD COllEGE, CAMBRIDGE, HASS. 



jfounliETi b» pttbate subsctfijtfon, fn 1861. 



Depositedby ALEX. AGASSIZ. 



JWaxJU 5^ , \^\\■ 



