OF THE MANUFACTURE OF GAS. 



101 



ACTUAL CONSTITUENTS. 



Cubic feet. 



Hydrocarbons and defiant gas 156.5 = 273.9 olcfiant gas- 



LJght carburetted hydrogen 272.3 



Hydrogen 791.9 



Carbonic oxide 215.9 



Carbonic acid 9 



Aqueous vapour 21.5 



1459.0 



Amount of carbonic acid generated by 1 volume of conden- 

 sible hydrocarbons = 3.50 volumes* 



Gain in illuminating power by appli- 

 cation of water gas = 



Gain in quantity of olofiant gas ... 



Gain in total quantity of gas pro- 

 duced 



Per cwt. 



315.7 candles. 

 125,9 cub. ft. 



928 « 



Per ton. 



6314 candles. 

 2518 cub. ft 



18,560 " 



Per cent. 



82.8 

 85.1 



174.8 



METHYL CANNEL. 



I.— WITHOUT WATER GAS. 



Cannel used 112Ib8. 



Gas produced 478 cubic feet. 



Coke loft 51 lbs. 



Time occnpied 3 hours. 



ILLUMINATING POWER OP GAS. 



Illuminating power of total gas burnt at the rate of 5 feet 

 per hour = 265.8 candles. 



