JOURNAL 



OF THE 



Academj of Natural Sciences 



OF 



PHILADELPHIA 



MAY, 1818. 



OFFICERS OF THE ACADEMY OF NATURAL 

 SCIENCES, FOR THE YEAR 1818. 



President, 

 William Maclure. 



Vice Presidents* 



Zaccheus Collins, George Orel. 



Corresponding Secretarij^ 



Reuben Haines. 



Recording Secretary. 



Edward Barton, M. D. 



Curators. 



Thomas Say^ Charles- Alexandre Le Sueur, Isaiah 



Lukens, Titian Peale. 



Librarian. 



Jacob Peirce. 



Treasurer. 

 Jacob Gilliamst 



Vol. I. 



-Committee of Publication. 

 George Ord? Thomas Say 



