JOURNAL 



OF 



NATURAL PHILOSOPHY, 

 CHEMISTRY, 



AND 



THE ARTS. 



VOL. XXIII. 



3jUugtrateo toit& Cngrattingg. 



BY WILLIAM NICHOLSON. 



LONDON: 



f RINTED BY W. STRATFORD, CROWN COURT, TEMPLE BAR } FOR 



W. NICHOLSON, 



CHARLOTTE STREET, BLOOMSBURY; 

 AND SOLD BY 



J. STRAtFORD, No. 112, Holborn Hill. 



1809. 



