PROCEEDINGS 



Iratlenii of ^atural Jffetttt* 



PHILADELPHIA 



1897. 



PART II, APRIL-SEPTEMBER. 



PUBLICATION COMMITTEE. 



Thomas Meehan, Charles E. Smith, 



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



Henry Skinner, M. D. 



- 



EDITOR : Edward J. Nolan, M. D. 



PHILADELPHIA : 



ACADEMY OF NATURAL SCIENCES, 



LOGAN SQUARE. 

 1897. 



