■ On Oxalic Jcid. 54 7 



I have else\\hcrc detailed the method which T follow in 

 analysino- gases of this naluve*. The foliowinLT table ex- 

 hibits the mean of a considerable number of trials of this 

 gas with oxvgen. 



that is to say, 100 cubic inches of the gas when burnt, 

 combine with 91 cubic inches of oxygen; there are pro- 

 duced 93 inches of carbonic acid ; and after the combustion 

 these 93 inches alone remain, the rest being condensed. 

 Hence we conclude that the other substance produced was 

 water. 



This result corresponds almost exactly with what would 

 have been obtained, if we had made the same experiment 

 upon a mixture of 70 measures of carbonic oxide, and 30 

 measures of carbureted hydrogen, as will appear from the 

 followinir table. 



This coincidence is so exact, that I do not hesitate to con- 

 clude that the inflammable gas, which was the subject of 

 experiment, was in reality a mixture of 70 parts of carbonic 

 oxide, and 30 of carbureted hydrogen. The specific gravity 

 indeed, which was 0-908, does not exactly agree with the 

 specific gravity of such a mixture ; for 2} measures of car- 

 bonic oxide, and one measure of carbureted hydrogen, ought 



.See NirhoN-in's Journal, xvi. 247. 

 4 



to 



