/ L( /* ^'/ /- 2 



OBSERVATIONS 



GENUS UNTO, 



DKSCmi'TlOiNS OF NEW Sl'KCIKS, THEIR SOFT PARTS, AND EMBRYONIC FORMS, IN 

 THE FAMILY TTNIONIDiE, 



KIOAI) !;i:|-(>UK TIIK Ai'AI)i:.\[V (II- NATUUAL St'lENX'KS <»F rillLAUKLrillA AX[> 

 ITIJLI.SHKU IX THEIR JOl'KXAl,. 



ISAAC LEA, LL D., 



PRESIDE.NT OF TUE ACADKMY OK XATCllAL SCIENCES OF I'lllLADELl'lllA, ETC 



WITH EIGHTEEN I'LATES. 



VOL. B.-PART II. 



I'll I I. AIJI:L i- IN A: 



PRINTED FOR THE AUTHOR. 



