

''^ /■'**■' 



r .- 



.2^7/ 2- 



Alex. A'gassiz. 



yikarg üf flj^ glwsenm 



OF 



COMPARATIYE ZOÖLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE, MASS. 



JFounlieti b» pribate sufiscrfptfon, fn 1861. 



Depositedby ALEX. AGASSIZ. 



No. y^^'^' 



JVö.if, /^f//. ^i .,/i^,1/v,/fo./<?.Jc'/ . 



