PROCEEDINGS 



OF THE 



iciijemg of %i\i\mil ^tkwm 



OF 



PHILADELPHIA. 



PART III.— OCTOBER to DBCBMBEB, 1880. 



PUBLICATION COMMITTEE. 



Joseph Leidy, M. D., Geo. H. Horn, M. D., 



Wm. S. Vaux, Thomas Meehan, 



J. H. Redpield. 



EDITOR: Edward J. Nolan. M. D. 



PHILADELPHIA 

 ACADEMY OF NATURAL SCIENCES, 



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

 1880. 



