^3¥*C 



^ibrarjT jof i\it Puscunt 



OF 



COMPARATIVE ZOOLOGY, 



AT flARYARD COLLEGE, CAMBRIDGE, MASS. 



JJounticti bi) pribatc suftscrfptfon, in 1861. 



^'-^^^-■N^"^'\_-' 



From the Library of LOUIS AGASSIZ. 



