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PROCEEDINGS 



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PHILADELPHIA. 



PART II. MAY-SEPTEMBER, 1889. 



PUBLICATION COMMITTEE: 



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



Ei>w. J. Nolan, M. D., • Thomas Meehan, 



J. H. Redfield. 



EDITOR: Edward J. Nolan, M. D. 



-9. 



PHILADELPHIA: 



ACADEMY OF NATURAL SCIENCES, 



LOGAN SQUARE, 



1889. 



