THE 
AMERICAN JOURNAL _ 
“ota, 
OF 
SCIENCE AND ARTS. 
CONDUCTED BY 
BENJAMIN SILLIMAN, M. D. LL. D. 
Prof. Chem., Min., &c. in Yale Coll.; Cor. Mem. Soc. Arts, Man. and Com.; and 
For. Mem. Geol. Soc., London; Mem. Roy. Min. Soc., Dresden; Imp. 
ic. Soc., Moscow ; Kiet Mem. Lin. Soc., Paris; Nat. Hist. 
Soc. Belfast, Ire.; Phil. and Lit. Soc. Bristol, Eng.; 
em. of various Lit. and Scien. Sec, in America. 
VOL. XVII.—JANUARY, 1830. 
NEW HAVEN: 
Published and Seld_ by HEZEKIAH HOWE and A. H. MALTBY. 
iladelphia, E. LITTELL & BROTHER. —New York, G. & C. & H. 
VILL.— Boston, HILLIARD, GRAY, LITTLE & WILKINS. 
PRINTED BY HEZEKIAH HOWE. 
. @OT. GARDE 
1910 
