9^0 ir ¿/ 



^ibnuu of íljc P^irscum 



COMPAUATIVE ZOOLOGY, 



AT HARVAKD COllEfiE, CAMBRlDfiE, MASS, 

 jfounlielí i)» prfbate subscrfptíon, ín 1861. 



The gift of LOUlS AGASSIZ. 

 No / S'-Z. 



