226 



•fhe authors 

 claim to the 

 iuTention. 



KATCRE OF OXIMTJRIATIC ACID. 



and from this circumstance in pointing out its utility, 1 

 claim a credit from its originalit}'. If, Sir, it was previously 

 known, why was it not in use? The fact appears tome, 

 that no person, except myself, thought of taking the pains 

 to study the subject. 



Having thus brought it publicly to notice, I still feel a 

 degree of pride in furnishing au additional and easy step to 

 the promotion of the arts. 



I have now, Sir, to apoligize to you for trespassing on 

 your patience, and as it is not possible for any geutlemsm to 

 have taken more trouble, or have paid a more polite atten- 

 tion to the circumstance, I thought it most decorous to 

 submit this memorial to you, as one of the Chairmen of the 

 Committee of Polite Arts. 



Trusting, Sir, you will be so good as to communicate the 

 same to the Committee, I beg to subscribe myself, with all 

 respect. 



Sir, 

 Your very obedient humble Servant, 



J. HASSELL. 

 No. 11, Clement's Inti^ May 10, 1810, 

 To J. T. Barbcr, Esq, 



A Chairman ^f the Commitiee of Polite Arts. 



XVI. 



On the "Nature of Oximuriatic Acid Gas, and the Conversion 

 of Carbonic Oxide into Carbonic Acid hy it, in Reply to 

 Mr. J. DaVY. In a Letter from Jlfr. J, Murray, Lee- 

 turer on Chemistry, Edinburgh, 



To MR. NICHOLSON. 



SIR, 



Jl^ Have not seen until lately Mr. J. Davy's communica- 

 tion in your Journal, for September last, and 1 embrace as 

 early an opportunity as occurs to me, of oftering a few obser- 

 vations in reply to it. 

 New gassup-f The most important part of this communication is that, 



which 



