1 THE 



AMERICAN JOURNAL 



OF 



SCIENCE ANH ARTS. 



CONDUCTED BY 



BENJAMIN SILLIMAN, M. D. LL. D. 



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



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



Dvesden; Nat. Hist Soc, Halle; Imp. Agric Soc, Moscow; Hon. Mem. 



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



Bristol, Eng- ; Hon. Mejn. Roy. Sussex Inst. Brighton, Eng.; 



Lit. and Hist. Soc, Quebec; Mem. of various 



Lit. and Scien. Soc. in America. 



VOL. XXXIL—No. 2.— JULY, 1837. 



FOR APRIL, MAY, AND JUNE, 183T. 



NEW HAVEN: 



Sold by A. H. MALTBY and HERRICK & NOYES.—BaJiimore, I, SMITH 

 HOMANS, (late E. J. Coale & Co.)— Philadelphia, CAREY & HART and 

 J. S. LITTELL.— JVcm; York, G. & C. CARVILL & Co., No. 73 Cedar St., and 

 G. S. SILLIMAN, No. 46 William St.—JBoston, HILLIARD, GRAY & Co. 



PRINTED BY B. L. HAMLF.N. 



