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JjtTVi-^d ty S a 



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^xbrarn of i\z Blusmm 



1 





OF 







COMPAHATIYE ZOOLOGY, 







AT HAUYARB COLLEGE, CAMBRIDGE, MASS. 







jFounlie^r fig pribate sufiscrfptfon, in 1861. 







3^j (^ 







No. 7^3-^ 











