THE 



RICAN JOURNAL 



OF 



SCIENCE AND ARTS, 



CONDUCTKD BY 



BENJAMIN SILLIMAN, M. D. LL. D. 



Prof. Chem., Min., &c. in Yale CoU. ; Cor. Mem. See. Arts, Man. and Com. ; and 



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



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



Nat. Hist. Soc. Belfast, Ire. 5 Phil, and Lit. Soc. Bristol, Eng. ; 



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



VOL. XXIV.--*eES^ 1833. 



NEW HAVEN: 



Published and Sold by HEZEKIAH HOWE & Co. and A. H. MALTBY. 



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

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