h:— b- 



Alez. Agassiz. 



f ibnirji ai lljc gtuscunt 



OP 



COMPARATIVE ZOÖLOGY, 



AT DARVARD CflllECE, CAIIBRIIICE, MASS. 



jFounicli fcn pvibatE subscvfflti'on, fn ISGI. 



Depositedby ALEX. AGASSIZ. 



iVb. SüO,4't(o. 



