JOURNAL 



OF 



NATURAL PHILOSOPHY, 

 CHEMISTRY, 



AND 



THE ARTS. 



VOL. IX. 



3lllusttrateD toitf) Cnstatiingsff 



BY WILLIAM NICHOLSON. 



LONDON: 



PRINTED BY W. STRATFORD, CROWN COURT, TEMPLE BAR; FOR 



THE AUTHOR, 



AND SOLD BY HIM AT NO. 10, SOHO-SQUARE ; 

 AND BY 

 J. MURRAY, NO. 32, FLEET-STREET. 



1804. 



