. e 
AMERICAN! DURNAL 
OF 
SCIENCE AND ARTS. 
CONDUCTED BY 
BENJAMIN SILLIMAN, M.D. LL. D 
Prof. Chem., Min., &c. in Yale Coll.; Cor. Mem. Soe. Arts, Man. and Com ; and 
For. Mem, Geol. Soc., London; Mem. Geol. Soc., Paris; Mem. Roy. Min 
Dresden Nat. Hist. Soc., Halle; Imp. Agric. Soc., Moscow; Hon. Mem, 
Soc., Paris; Nat. His Belfast, Ire.; Pll. and Lit. Soe. 
Bristol, Eng.; Lit. and ik Soc., Quebec; Mem. of various 
it. and Scien. Soc. in the United States. 
n. Soe., 
t. Soc. 
VOL. XXVIII.—JULY, 1835 
NEW HAVEN: 
Published and a by HEZEKIAH HOWE & Co, and A. H. MALTBY. 
Baliimore, FE. J. COALE 
& HART. 
E & Co.—Philadelphia, J. S. LITTELL and CAREY 
Ae York, G. & C. CARVILL & Co. and by G. S. SILLIMAN. 
—oston, HILLIARD, GRAY & Co 
PRINTED BY HEZEKIAH HOWE & CO. 
