^ 6^../^ . 







Iftbrarg 0f tlj^ glitsium 







OF 



) 





COMPARATIYE ZOOLOGY, 







AT HARVARD COLLEGE, CAMBRIDGE, MASS. 



1 





JFounlietJ Iij ptibate sufiscvfptffln, in 1861. 







From the Library of LOUIS AGASSIZ. 







No. ^9-2 9-r. 







/ y 





