

8 



PROCEEDINGS 



(IF THE 



'Art & 



wiring of :\ atttral Sciences 



OF 



PHILADELPHIA. 



PART II, April October, 1879. 



PUBLICATION COMMITTEE. 



Joseph Leidy, M.D., 

 Wm. S. Vaux, 



Geo. H. Horn, M.D., 

 Thomas Meehan, 



J. II. Redfield. 



EDITOR: Edward J. Nolan, M.D. 



PHILADELPHIA: 



ACADEMY OF NATURAL SCIENCES, 



S. W. Corner of 19th and Race Streets. 



1879. 



