L3_ ., 







J 



^ihxKtv of tlj£. P^ustum 







OF 







COMPARATIVE ZOOLOGY, 







AT HARVARD OOllEGE, CAMBRIDGE, MASS. 







JFountrelJ bg pribate suliscrfption, fn 1861. 







Deposited by Alex. Agassiz. 







M.^(oii. 





