TMy 



AMERICAN JOURNAL 



OF 



SCIENCE AND ARTS. 



CONDUCTED BY 



BENJAMIN SILLIMAN, 



Professorof Chemistry, Mineralogy, &c. in Yale College; Corresponding Member of the 

 . Society of Arts, Manufactures, and Commerce, of London ; Member of the Royal 

 Mineralogical Society of Dresden; of the Imperial Agricultural So- 

 ciety of Moscow ; Honorary Member of the Linnsan Society 

 of Paris ; of the Natural History Society of Belfast ; 

 and of varioug Literary and Scientific 

 Societies in America. 



VOL. IX.— fe^m- 1825. 



NEW-HAVEN : 



PRINTED AND PUBLISHED BY S. CONVERSE, FOB THE EDITOR. 

 SOLD BY THE PUBLISHER; BY £. LITTELL^ 



PHILADELPHIA, AND TRENTON, N. J.; AND 



By Hezekiah Howe, New Haven; Pishey Thompson, Washington, D. C,; 

 Huntington & Hopkins, Hartford; Cummings Hilliard, & Co. Boston; 

 Goodale, Glazier, & Co. Hallowell, iMaine ; A. T. Goodrich, New- York ; 

 Caleb Atwater, Circleville, Ohio ; Thomas J. Ray, Augusta, Ga. ; Whip- 

 ple & Lawrence, Salem, Mass. ; Edward J. Coale, Baltimore ; B. D. Plant, 

 Columbia, S. C. ; John Hutchins, Providence, R, L ; Thomas R. 

 Williams, Newport, R. I. ; William T. Williams, Savannah, Geo. ; Luke 

 Loomis, Pittsburgh, Pa. ; Daniel Stone, Brunswick, Maine ; Professor 

 D. Ohnsted, Chapel Hill College, N. C; John Miller, No. 69 Fleet- 

 street, London. 



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