PROCEEDINGS 



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5 



PHILADELPHIA. 



PABT I. JANUAB.Y-APRIL, 1880. 



PUBLICATION COMMITTEE. 



Joskph Lkidy, M. D., Gko. H. Horn, M. D., 



Edw. J. Nolan, M. D., Thomas Meehan, 



J. H. Redfif.ld. 



EDITOR: Edward J. Noi.an, M. D. 



"Y 



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PHILADELPHIA: " 



ACADEMY OF NATURAL SCIENCES, 



LOGAN SQUARE 

 18.S9. 



