/ 



\^a 



OP 



COMPAHATIYE ZOÖLOGY, 



AT DARVARD COLLEGE, CAIIBRILCE, MASS. 

 jFountJctJ 1)1) i)ifbatc subscvfptf0n, fix 186 1. 



From the Library of LOUIS AGASSIZ. 



No. /JJ^ 



/^^'^^^^a.nj.^i^jj ryiJ./^ 



iJ^ 



