INFLAMMABLE GAS. 26/ 



Here the proportion of oxygen consumed increased with the Experiments 

 proportion present. The average result is very different from and observa- 

 that obtained in the former experiments ; since here 100 of flammable gas 

 gas consumed 186 of oxygen, whereas, in the former case, the from peat, 

 gas consumed only its own bulk of oxygen. The proportion 

 of carbonic acid gas is too small ; but over mercury it amounted 

 only to 70 for the hundred of gas. 



Here 70 inches of oxygen w^ent to the formation of carbonic 

 acid, and 1 16 to that of water. These last must have com- 

 bined with what was equivalent to 232 inches of hydrogen. 

 70 inches of carbonic acid contains of carbon 9.11 grs. 

 232 inches of hydrogen — — 6.03 



15.14 

 Weight of 100 inches gas 19.73 



""^^T^^j , Residue — — 4.59 



. Xhis residue must be water, and composed of 



0.65 hydrogen 



3.94 oxygen 



4.59 

 Hence the gas is composed of 9.11 carbon 



6.68 hydrogen 

 3.94 oxygen 



19.73 

 or per cent of 46 carbon 



34 hydrogen 

 20 oxygen 

 The great difference between this gas and the preceding 

 consists in the diminution of the oxygen and the increase of the 

 hydrogen. 



Now, this gas cannot be a mixture of carbonic oxide 

 and carbureted hydrogen : its specific gravity approaches too 

 nearly to that of the latter gas, to admit any notable quantity 

 of the former. It cannot be carbureted hydrogen, because the 

 proportion of carbonic acid formed during its combustion is 

 too small to admit of that supposition. 

 With the second portion of iijflammable gas, which had a 



smaller 



