

Zù'j^S' 



^ibrarg of tljc ^uscunt 



OF 



COMPARATIVE ZOÒLOGY, 



AT HARVARD COllEGE, CAMBRIDGE, MASS. 



iFountreli 6d ]ir[taate substrfiitfon, [n 1861. 



cffuL ynJ-t ut ^ÀjL 



M.^ ^. 



No. ^c^ 



9- 



J-^- 1f.S /. 



