

THE 



AMERICAN JOURNAL 



OF 



SCIENCE ANB ARTS 



CONDUCTED BY 



BENJAMIN SILLIMAN, M. D. LL. D. 



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



For. Mem. Geol. Soc, London ; Mem. Geol. Soc, Taris; Mein. Roy. Min. Soc, 



Dresden; Nat. Hist Soc, Halle; Imp. Agiic. Soc, Moscow; Hon. Mem. 



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



Bristol, Eng ; Hon. Mem. Roy. Sussex Inst. Brighton, Eng. ; 



Lit. anJ Hist. Soc, QueLec ; Mem. ot various 



Lit. and Scien. Soc in America. 



VOL. XXXII.- ^JULY^ 1837. 



NEW HAVEN: 



Sold by A. H. MALTBY and HERKICK & NOYES.—Baltv>iore, I. SMITH 

 ROMANS, Qdte E. J. Cole & Co.)— Philadelphia, CAREY & HART and 

 J. S. LITTELL.— JV*m York, G. St C. CARVILL & Co., Nc. 73 Cedar St., and 

 G. S. SILLIMAN, No. 45 William ^t— Boston, HILLIARD, GRAY & Co. 



PRINTED BY B. L. HAMLEN. 



