PROCEEDINGS 



OF THE 



ACADEMY OF NATURAL SCIENCES 



OF 



PHILADELPHIA. 



1898. 



COMMITTEE ON PUBLICATION: 

 Thomas Meehan, Charles E. Smith, 



Edward J. Nolan, M. D., Henry Skinner, M. D., 



Henry A. Pilsbry. 



Editor : EDWARD. J. NOLAN, M. D. 



PHILADELPHIA: 

 ACADEMY OF NATURAL SCIENCES, 



LOGAN SQUARE. 



1899. 



