THE 



AMERICAN JOURNAL 



or 



SCIENCE AND ARTS. 



CONDUCTED BY 



BENJAMIN SILLIMAN, M. D. LL. D. 



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



For. Mem. Geol. Soc, London ; Mem. Geol. Soc, Paris ; Meia. Roy. Min. Soc, 



Dresden; Nat. HisL Soc, Halle; Imp. Agrlc. Soc, Moscow; Hon. Mem. 



Lin. Soc, Paris; Nat. Hist Soc Belfast, Ire.; Phil, and Lit. Soc. 



Bristol, Eng.; Mem. of various Lit. and Scien. Soc. in America. 



VOL. XXVII.— No. 2.— JANUARY, 1835. 



FOR OCTOBER, NOVEMBER, AND DECEMBER, 1834. 



NEW HAVEN: 



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

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