PROCEEDINGS 



OF THE 



ACADEMY OF NATURAL SCIENCES 



OF 



PHILADELPHIA. 





1896. 



COMMITTEE ON PUBLICATION: 



Thomas Meehan, Charles E. Smith, 



Edward J. Nolan, M. D., George H. Horn, M. D. , 



Harrison Allen, M. D. 



Editor : EDWARD J. NOLAN, M. D. 



PHILADELPHIA: 

 ACADEMY OF NATURAL SCIENCES, 



LOGAN SQUARE. 



1896. 

 41 



