- = 
- . F - 5 a AA. - mU T E Ms aus AS dioe ET a 
PER SRE das, ck. AK i 
A sem 
fon, ín 1861. 
m 
j 
3 
Y 
t 
h 
D COLLEGE, CAMBRIDGE, MASS. 
AT HARVAR 
p of t 
ibrary 
N 
à 
z2 
= 
2 
= 
n 
3 
3 
R 
e 
iol 
ta 
EZ 
S8 
2 
& 
£s 
Ez) 
nm 
e 
r; 
2 
3 
^ 
| COMPARATIVE. ZOÓLOGY;| 
