Me^ A' - — ci¥^^' 



/2>,^- 



f ibrars of il^t Puscum 



OF 



COMPARATIVE ZOÖLOGY, 



AT HARVARD COLLEGE, CAMBRlDfiE, MASS. 

 ifountirt I)» ptibate subscrfjitton, fn 1861. 



Depositedby ALEX. AGASSIZ. 



