THE- 



AMERICAN JOURNAL 



OF 



SCIENCE AND ARTS, 



CONDUCTED TY 



BENJAMIN SILLIMAN, M. D. LL, D. 



Prof. Chem., Min., &c. in Yale Coll, ; Cor. Mem, Soc. Arts, Man. and Cora. ; and 



For. Mem. Geol. Soc, London; Meia.'Roy. Min. Soc, Dresden; Nat. Hist. 



Soc, Halle; Imp. Agric. Soc, Moscow; Hon. Mem. Lin. Soc, Paris; 



Nat. Hist. Soc Belfast, Ire.; Pliil. and Lit. Soc Bristol, Eng. ; 



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



VOL. XXIV.— No. 2.— JULY, 1835. 



FOR APRIL, MAY, AND JUNE, 1833, 



NEW HAVEN: 



Published aad Sold by HEZEKIAII HOWE & Co. and A. H. MALTBY. 

 Baltimore, E. J. COALE & Co.— Philadelphia, J. S. LITTELl, and CAREY & 

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