BULLETIN 
OF 
THE PROCEEDINGS 
OF THE 
NATIONAL INSTITU TION 
FOR 
THE PROMOTION OF SCIENCE. 
V. ! 
ESTABLISHED AT WASHINGTON IN 1840. 
...y-. 
y" "■ </ 
WASHINGTON: 
PRINTED BY GALES AND SEATON. 
Z3<3t>Q* 
f,St in „«l W 
1841. 
