Il. 
ORGANIZATION OF THE ACADEMY. 
1866. 
ALEXANDER Datias Bacue, President. 
JosepH Henry, Vice-President. 
Lovis Acassiz, Foreign Secretary. 
Wotcortr Grsss, Home Secretary. 
Farrman Rocers, 7reasurer. 
COUNCIL FOR 1866. 
The Officers of the Academy and the Chairmen of the 
Classes ex officio. 
Bens. A. Govutp. M. C. Mercs. 
J. L. Le Conte. W. D. Wurrser. 
OFFICERS OF THE CLASSES. 
1866. 
CLASS OF MATHEMATICS AND PHYSICS. 
Bexsamin Perrce, Chairman. 
J. E. Hearn, Secretary. 
