

2- 







lEibrari) of % UJuscum 







OF 





COMPARATIVE ZOÖLOGY, 







AT HARVARD COLLEGE, CAMBRIDGE, MASS. 







Jfountre'D bi> prfbatc subsctfplfon, fn 1861. 







Deposited by ALEX. AGASSIZ. 







„ • Nb.4?/J 







(1 1 





