^ I I KJb-KJk 



THE 



AMERICAN JOURNAL 



or 



SCIENCE AND ARTS. 



CONDUCTED BY 



BENJAMIN SILLIMAN, M. D. LL. D. 



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



For. Mem. Geol. Soc, London; Mem. Roy. Min. Soc, Dresden; imp. 



''•Agric. Soc, Moscow; Hon* Mein. Lin. Soc, Paris; Nat. Hist. 



Soc. Belfast, Ire.; Phil, and Lit. Soc. Bristol, Eng.; 



5Iem. of various Lit. and Scion. Soc. in America. 



VOL. XVIL— No. 1.— OCTOBER, 1829. 



FOa JULY, AUGUST, AND SEPTEMBER. 



NEW HAVEN: 



Published and Sold bv HEZEKIAH HOWE and A. H. MALTBY. 

 Philndelphin, E. LITTELL & iiHOT^WAL — Ycw York, (J. & C, & H. 

 VALIV ILL.— Boston, HILLLIRD, (IRAV, LITTLE & VVILKINS. 



PRINTED BY IIEZEKIAH HO',VE. 



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