yibrarg oi lljc Slwsninx 



OF 



COMPARATIVE ZOÖLOGY, 



AT HARVARD COLLEGE. CAMBRIDGE. MASS. 



jFoun^cti bj pribate subscrfptfon, fn 1861. 



Deposited by ALEX. AGASSIZ. 



No. <o C 6'Y- 



■ y. /^yy, j£/./f, /rr<^ 



