173.6 
Ben 
Kibrary of the Museum 
OF 
COMPARATIVE ZOÖLOGY, 
AT HARVARD COLLEGE, CAMBRIDGE, MASS. 
Founded by private subscription, in 1861. 
NEN SENEN IN SIR INEEN 
The gift. of che Natur f 5 Gr blsch.. 
RU en. 
No. 1/43. 
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