PROCEEDINGS 



V 



AMERICAN PHILOSOPHICAL SOCIETY, 



HELD AT PHILADELPHIA, 



PROMOTING USEFUL KNOWLEDGE. 



VOL. I. 



FOR THE YEARS 1838, 1839 & 1840. 



■"**+*• 9>mm)++t* 



PHILADELPHIA: 



PRINTED FOR THE SOCIETY, 



By John C. Clark, 60 Dock Street. 



1840. 



