

2J7 l 







^ 







JlleSiL A'gasiue. 





yiirrarg oi t^^ '^xxnmm 







OF 







COMPARATIYE ZOÖLOGY, 







AT HARVARD COLLEGE, CAMBRIDGE. MASS. 







JFottntreÄ fig prfbate stttscrfptfon, fn 1861- 







Deposited by ALEX. AGASSIZ. 







Nd. 7^^«^. 









