

3pt<L 



librari) of % fftusntm 



OP 



COMPARATIVE ZOÒLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE, MASS. 

 JXounlicti l)j pvfbate subscvtjjtfon, fn 1861. 



No. ?(oòJ 



Jtf_cnf_ ! 2j/,. /mi- c Pr/r. 3 /r^r 



