JOURNAL 



OF 



NATURAL PHILOSOPHY, 

 CHEMISTRY, 



AND 



THE ARTS. 



VOL. XXII. 



3iUu0ttatcD toitfj €ngta\3ings. 



BY WILLIAM NICHOLSON. 



ttauummaammm* 



LONDON. 



PRINTED BY W> STRATFORD, CROWN COURT, TEMPLS BAR * FOR 



W. NICHOLSON, 



CHARLOTTE STREET, BLOOMSBURY; 

 AND SOLD BY 



J.STRATFORD, No. IK', Holbgun- IIiil. 



1809. 



