,.;^^' 



PROCEEDINGS 



OV THB 



.^c^ri^mg 0f l^alurnl ^ti^nr^$ 



I 



OF 



PHILADELPMIA. 



PART III. OCTOBER DEC E3IBEIi, 1880. 



PUBLICATION COMMITTEE. 



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



Edw. J. Nolan, M. D., Thomas Meehan, 



J. H. Redpield. 



EDITOR: Edward J. Nolan, M. D. 



PHILADELPHIA: 

 ACADEMY OF NATURAL SCIENCES, 



LOGAN SQUARE. 

 1887. 



