^ ,.-. . -^ 



^■- ■^''^ , /. 



THE 



AND ARTS. 



CONDUCTED BY 



BENJAMIN SILLIMAN, 



PROFESSOR OF CHEMISTRY, MINERALOGY, ETC. IN YALE COLLEGE; CORRES- 

 PONDING JIEMBER OF THE SOCIETY OF ARTS, MANUFACTURES AND COM- 

 MERCE OF LONDON, MEMBER OF THE ROYAL MINERALOGICAL 

 SOCIETY OF DRESDEN, OF THE IMPERIAL AGRICULTURAL 

 SOCIETY OF MOSCOW, AND OF VARIOUS LITERARY 

 AND SCIENTIFIC SOCIETIES IN AMERICA. 



VOL. VII... 



NEW-HAVEN : 



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

 SOLD BY THE PUBLISHER; BY E. LITTELL, 



PHILADELPHIA, AND TRENTON, N. J.; AND 



By Howe & Spalding, New-Haven ; Davis & Force, Wasiiington, (D. C.) ; 

 Huntington h Hopkins, Hartford ; Cummings &. Hilliard, Boston ; Good- 

 ale Glazier &. Co. Hallowel, Maine; A. T. Goodrich & Co. Nevf -York; 

 Caleb Atwater,Circleville, Ohio; Thomas. I Ray, Augusta,Ga;; Whipple & 

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

 Columbia, S. C. ; Miller &. Hutchins, Providence, R. L ; Thomas R. 

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

 Loomis, Pittsburgh, Pa.; Daniel Stone, Brunswick, Me. ; Professor D. 

 Olmsted, Chapel Hill College, N. C. ; John Miller, No. 69, Fleet-street, 

 London. 



