13,'^ 



l^ibrarij of tljc Museum 



OF 



COMPARATIVE ZOÖLOGY, 



AT DAEYARD COLLEGE, CAMCRIIICE, ÜIASS. 

 JFountic'ö bs jirfbate subsctfptfon, tu 18C1. 



Deposited by ALEX. AGASSIZ. 



No. ^\oh\^ 



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