PROCEEDINGS 



OF THE 



ACADEMY OF NATURAL SCIENCES 



OF PHILADELPHIA. 

 Vol. I. MARCH AND APRIL, 1841. No. 1 



LIST OF OFFICERS FOR 1S41. 



PRESIDENT. 



William Hembel. 



VICE PRESIDENTS. 



John Price Wetherill, 

 Samuel George Morton, M.D. 



CORRESPONDING SECRETARY. 



Robert Bridges, M.D. 



RECORDING SECRETARY. 



A. Denman Chaloner, M.D. 



LIBRARIAN. 



Alfred L. Elwyn, M.D. 



TREASURER. 



George W. Carpenter. 



CURATORS. 



William S. Vanx, 

 John S. Phillips, 

 Robert Pearsall, 

 George C. Leib, M.D. 



AUDITORS. 



William S. Vanx, 

 A. D. Chaloner, M.D. 

 Robert Pearsall. 



COMMITTEE OF PUBLICATION. 



Alfred L. Elwyn, M.D. 

 William S. Vaux, 

 Joseph Carson, M.D. 

 Edward Hallo well, M.D. 

 John Simmons. 



