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AMERICAN JOURN 
THE 
of | 
AL 
GF 
SCIENCE AND ARTS. 
CONDUCTED BY 
BENJAMIN SILLIMAN, M. D. LL. D. 
Prof. Chem., Min., &e. in Yale Coll.; Cor. Mem. Soc. Arts, Man, and Com.; and 
For. Mem. Geol. Soc., London; Mem. Roy. Min. Soc., Dresden; Imp. 
Agric. Soc., Moscow; Hon, Mem. Lin. Soc., Paris, Nat. Hist. 
Soc. Belfast, Ire.; Phil. and Lit. Soc. Bristol, Eng.; 
Mein. of various Lit. and Scien. Soe. in America. 
VOL. XXI.—JANUARY, 1832. 
NEW HAVEN: 
Published and Sold by HEZEKIAH HOWE and A. H. MALTBY. 
iladelphia, E. LITTELL. & BROTHER.—New York, G, & C. & H. 
CARVILL.—Boston, HILLIARD, GRAY, LITTLE & WILKINS. 
PRINTED BY HEZEKIAH HOWE. 
Mo. Bot.Garden, 
1901, 
