THE 
AMERICAN JOURNAL . 
SCIENCE AND ARTS. 
CONDUCTED BY 
PROFESSOR SILLIMAN 
AND 
BENJAMIN SILLIMAN, Jr. 
VOL. XLL—OCTOBER, 1841. 
(TO BE CONTINUED QUARTERLY.) 
NEW HAVEN: 
Sold by B. & W. NOYES.—Philadelphia, CAREY & siege J.8. colar 
and ORRIN ROGERS, No. 67 So. Second St.—Baltim 
—New York, CARVILL & Co., No. 108 Broadway, estate tt PORTED. 
corner of John St. and Broadway, and G. S. SILLIMAN, No. 49 Wall St.— 
Boston, C. C. LITTLE & Co.—London and New York, WILEY & PUTNAM 
No. 35 Paternoster Row, London, and 161 rier New York.—Paris, 
HECTOR PBR eg & Co., No. 11, Quay Voltaire. Hamburgh, Messrs. 
NESTLER & 
PRINTED BY B. L. HAMLEN. 
