Vou. XIV. SEPTEMBER, 1852. 2 Near 
Published the first day of every second month, price €5 per year. 
THE 
AMERICAN JOURNAL 
OF 
SCIENCE AND ARTS. 
oe CONDUCTED BY 
| Proressors B. SILLIMAN, B. SILLIMAN, Jn. 
is AND 
JAMES D. DANA. 
alas ict 
| IN THE DEPARTMENTS OF CHEMISTRY AND PHYSICs | 
Dre. WOLCOTT GIBBS. 
SECOND SERIES. 
ai sige 
nen, 
No. 41.-SEPTEMBER, 1852. _ 
re 
