40 
man in place of Mr. Bache, who has been unable to serve 
on account of illness, and Com. John Rodgers and Mr. 
J. E. Hilgard had been added to the Committee. On mo- 
tion, the Committee was continued, and requested to report, 
if possible, at the next session of the Academy. 
Since the presentation of the last report, the Annual of 
the National Academy for the year 1865 has been prepared 
and published ; copies of this, in accordance with a formal 
vote of the Academy, have been distributed to the members 
of both houses of Congress, and also to the heads of the 
departments and bureaus under the government of the 
United States, 
At the two sessions of the Academy held during the year 
1865 thirty-three original communications were read. The 
following are the titles of these communications : — 
1. On a Chronograph for Measuring the Velocity of 
Projectiles, by J. E. Hilgard. 
2. On the Homologies and Classification of the Cephalo- 
pods, by L. Agassiz. 
3. On the Geographical Distribution of North American 
Birds, by S. F. Baird. 
4. Note on the Changes that have taken place in the ag 
of Charleston Harbor since the Sinking of Obstructions 
the Main Channel, as developed by the hee States Coast 
Survey, by J. E. Hilgard. 
5. On the Tables of the Moon, by Benjamin Peirce. 
6. On the Metamorphoses of some Malacopterygians, by 
L. Agassiz. 
7. On Chemical Classification, by Wolcott Gibbs. 
8. On the Dimensions and Proportions of American Sol- 
diers, by B. A. Gould. 
=» ‘8. On a: Method of Exhibiting certain Statisties of Hospi- 
ee by J. L. Le Conte. 
