K 



PROCEEDINGS 



ItiuUmu of 



iitiu'al J'rjeufts 



PHILADELPHIA. 



PAB.T I. JAJYUAI!,Y-FEBRVARY, 1888. 



^ 



PUBLICATION COMMITTEE. 



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



Enw. J. Noi.AN, M. D., Thomas Meehan, 



J. II. Redfielo, 



EDITOR: Edward J. Nolan, M. D. 



PHILADELPHIA: 



ACADEMY OF NATURAL SCIENCES," 



LOGAN SQUARE. 



1888. 



