24 
CLASS OF NATURAL HISTORY. 
Lovis Acassiz, Chairman. 
Spencer F. Barrp, Secretary. 
SECTIONS.* 
CLASS OF MATHEMATICS AND PHYSICS. 
Section I. Mathematics. 
J. G. BARNARD. 
H. A. Newron. 
THEODORE STRONG. 
And under Art. I., Sect. 
Bens. A. GouLp. J. H. C. Corrin. 
Witi1am CHAUVENET- 
BensaMIN PEIRCE. 
JoserpH WINLOCK. 
Section II. Physics. 
F. A. P. Barnarp. W.-H. C. BARTLETT. 
JosepH Henry. ai Mes Houmpurers. 
Ocpren N. Roop. 
And under Art. I., Sect. 
Wotcorr Gress. 
Section III. Astronomy, Geography, and Geodesy: 
SterHen ALEXANDER. ALExis CASWELL. 
J. H. C. Corrim. 
ARNOLD Guyot. 
Joun Ropcers. 
And under Art. I., Sect. 6 
- Witriam Ga Geek 
Cuaries H. Davis. 
Bens. A. GOULD. 
Lewis M. RuTHEeRFURD- 
JoserpH WINLOCK. 
Husert A. Newron. 
___* At date of publication of the Annual, April, 1867: 
