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OF 



COMPARATIVE ZOÖLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE, HASS. 

 jj'oun'öeli b» pribate sufisctfptfon, fn 1861. 



Depositedby ALEX. AGASSIZ. 

 No. 31 ^Ca. 



^ Vk/naaxoaaa \a yoy 



XO- - 



