v/l 



m 



I 



THE 



AMERICAN JOURNAL 



OF 



SCIENCE AND ARTS. 



CONDUCTED BY 



BENJAMIN SILLIMAN, M. D. LL. D. 



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



For. Mem. Geol. Soc., London; Mem. Roy. Min. Socj Dresden; Imp. 



Agrlc. Soc, Moscow; Hon. Mem. Lin. Soc, Paris; Nat. EBst. 



Soc. Belfast, Ire. ; PhU. and Lit. Soc Bristol,' Eng. ; 



Mem. of various Lit. and Scien. Soc. in Ameri(!%. 



VOL. XIX.— No. 1.— OCTOBER, 1830. 



FOR JULY, AUGUST, AND SEPTEMBER, 1830, 



NEW HAVEN: 



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

 Pkiladdnkia, E. LITTELL & BROTHER.— .Yeio York, G. & C. & H. 

 CAR VILL.— Boston, HILLIARD, GRAY, LITTLE & WILKINS. 



PRINTED BY HEZEKIAH HOWE. 



