c^l^2_ 



f ibrarg of tlje gluscum 



OF 



COMPARATIVE ZOÔLOGY, 



AT HARVARD COllEGE, CAMBRIDGE, MASS. 



jfounlieti bg prrbatc subsctfptfon, fit 1861. 



The gift of ALEX. AGASSIZ. 



No. J }^'0 /. 



7-^^^^ 



