~^cJo^ A? ^ ^'- ^ ^^^ 



THE 



AMERICAN JOURNAL 



OF 



SCIENCE ANI> 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. Sac, London; Mem. Roy. Min. Soc, Dresden; Imp. 



Agric Soc, Moscow; Hon. Mem. Lin. Soc, Paris; Nat. Hist. 



Soc Beliast, Ire.; Phil, and Lit. Soc. Biistol, Eng. ; 



Mem. of various Lit. and Scien. Soc in America. 





VOL. XXL— JdeSsBfe^eSS- 1832. 



NEW HAVEN: 



Published and Sold by HEZEKIAIl HOWE and A. H. MALTBY. 

 Philadelphia, E. LITTSLI. & BROTH ER.~JVew York, G. & C. & H. 

 CARYlhU— Boston, HJIXIARD, GRAY, LITTLE & WILKINS. 



PRINTED BY HEZEKIAH HOWE. 



