A 



JOURNAL 



OF 



NATURAL PHILOSOPHY, CHEMISTRY 



AND 



THE ARTS* 



AUGUST, 1809. 



ARTICLE I. 



The Balcerian Lecture. An Account of some new analytical 

 Researches on the Nature of certain Bodies, particularly 

 the Alkalies, Phofphorus, Sulphur, Carbonaceous Matter, 

 and the Acids hitherto unde compounded ; with some general 

 Observations on Chemical Theory. By Humphry Da_vy» 

 Esq. Sec. R.S. F.R.S. Ed. and M.R.I.A. * 



1. Introduction. 



1 



N the following: pa*es, I shall do myself the honour of Object of tfc* 

 laying before the Royal Society an account of the results ex P eriments * 

 of the different experiments, made with the hopes of extend- 

 ing our knowledge of the principles of bodies by the new 

 powers and methods arising from the applications of electri- 

 city to chemistry, some of which have been long in pro- 

 gress, and others of which have been instituted since their 

 last session. 



* Philos. Trans, for 1809, Part I. p. 39. 



Vol.XXIII. No. 104.— August, 1809. R The 



