PROCEEDINGS 



OK THE 



AtcttUmg of %i\i\m\l %m\m 



OF 



PHTI.ADET.PHTA. 



PART IL— APRIL to SEPTEMBEB, 1880. 



PUBLICATION COMMITTEE. 



.J08EPH Leidy, M. D., Geo. H. Horn, M. D., 



Wm. S. Vaux, Thomas Meehan, 



J. H. Redfield. 



EDITOR: Edward J. Nolan. M. D. 



PHIL A.DELPHIA: 

 ACADEMY OF NATURAL SCIENCES, 



S. W. Uor. of 19th and Kace Streets. 

 1880. 



