You. AY. JANUARY, 1853. No, 43. 
Published the first day of every second month, price $5 per year. 
Fe SR Ra Fr Lae. RSE  E ae Oe gE 
AMERICAN JOURNAL 
SCIENCE AND ARTS. 
CONDUCTED EY 
Proressors B. SILLIMAN, B. SILLIMAN, Jr. 
AND 
JAMES D. DANA. 
AIDED BY 
De. WOLCOTT GIBBS, or New York, 
IN PHYSICS AND CHEMISTRY, 
AND “ 
- Pror. ASA GRAY, or Camsriner, — 
IN BOTANY. 
COND SERIES. — 
No. 43M-JANUARY, 1853. 
