- 



3?oun,o /^3<? 



Ittbritrü of % UJuseum 



OF 



COMPARATIVE ZOÖLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE, MASS. 



j^ountJetJ hg prfbate suöscrfjptfon, fu 1861, 



- -. -. -. - _ 



The gift of ALEX. AGASSIZ. 



No. /z, oz.z 



