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PROCEEDINGS 



OF THE 



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cadfmn 0f '^Hiiiral IcicncsH 



OF 



PIIILAJJELPHIA. 



JPAItT II.31arc!ff Aprilf Map, June^ July, August, 



Septeaiher, 187S. 



%4^ 



PUBLICATION COMMITTEE. 

 Joseph Leidy, M.D., Wm. S. Vaux, 



Robert Bridges, M,D., 



Edw. J. Nolan, M.D. 



Geo. W. Trvon, Jr., 



PHII.ADP]LPniA: 



ACADEMY OF NATURAL SCIENCES, 



Corner of Broad and Sansoin Streets. 



1873. 



