^f^^- 



5^*^^^^ 



^^-'vi 



PBOGEEDINGS 



OF THE 



'Art w/' 



OF 



PHILADELPHIA. 



PABT II. April, 3Iay, June, July, August^ 

 and September, 1874. 



PUBLICATION COMMITTEE. 



Joseph Leidy, M.D., Geo. W. Tryon, Jr., 



Wm. S. Vaux, Edw. J. Nolan, M.D., 



W. S. W. RUSCHEKBEKGER, M.D. 



PHILADELPHIA: 



ACADEMY OF NATURAL SCIENCES, 



Corner of Broad and Sansom Streets. 



1874. 



