510 ^^ ItYPEROXIMURlATE OF POTASH. 



afford evidence in favour of the common doctrine of the 

 ftature of the relation between muriatic and oximuriatic 

 acids, and were they proved to be inconclusive, it would 

 only stand in the same rank with the opinion advanced by 

 Mr. Davy ; it can be applied, as I trust I have shown in my 

 former paper, to the explanation of all the phenomena, and 

 to some of them with more advantage than the other ; and 

 it has besides, as an hypothesis, that superiority from general 

 Copsiderations, which I have also stated to belong to it, 

 I am, with much respect, 



Your most obedient servant, 



JOHN MURRAY. 



IX. 



On the Production of Hyperoximuriate of Potash, considered 

 with respect to Mr. Davy's Jdeas of the Nature ofOximU" 

 riatic Acid, In a Letter from a Correspondent, 



To Mr. NICHOLSON. 

 SIR, 



yur T) y JL ^^K ^^^^c to tfouble you with a few observations con- 

 theory of oxi- cerning the new theory of the oximuriatic acid as advanced 



muriatic acid ^y ;m,-, Davv, more especially as to its application to the 

 api^lied to the f -^ ,. \ *', . p , ,, i , 



hyptroximuri- phenomena attending the production oi the so called hyper- 

 ate of potash, oximuriate of potash. If you think them worthy of a place 

 in your valuable Journal, I shall consider myself honoured 

 by their insertion. To Mr, Davy I shall offer no apology 

 for the freedom, with which I have treated the subject; as 

 I am convinced, that that distinguished gentlemen is more 

 anxious for the establishment of truth, than the introduction 

 of a favourite hypothesis. 

 Peculiarity of The peculiarity of Mr. Davy's theory consists in consi- 

 his theory. dering the oximuriatic acid a» a simple substance, a peculiar 

 acidifying principle of a nature something analogous to 

 oxigen. Muriatic acid he supposes to be a combination of 

 this principle with hidrogen. He appears to me not quite 



to 



