29 



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m 



PROCEEDINGS 



OF THE 



ita(Umg of Jaiunil ScitnciJi 



OF 



PHILADELPHIA. 



PABT I. January, February, MarcJi, 18741, 



\D 



f-\ 



"^ 



y PUBLICATION COMMITTEE. 



Joseph Leidy, M.D., Geo W. Tkyon, Jr., 



Wm. S. Vadx, Edw. J. Nolan, M.D., 



W. S. W. RUSCHEXBEEGER, M.D, 



PHILADELPHIA: 



ACADEMY OF NATURAL SCIENCES, 



Corner of Broad and Sansom Streets. 



1874. 



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