I BIBI.lOTHfiOl K I 



(SS 



Louis Agassiz. 



Sjh-i 



/-. 



^ibntrg of i\]t S^useum 



OP 



COMPARATIVE ZOOLOGY, 



AT HARVARD COLLECE, CAMBRIDGE, MASS. 



jFountJetJ by pn'bate subsctfptfon, fn 1861. 



Prom the Library of LOUIS AGASSIZ. 



No. 6/9/- 



