OF THE MANUFACTURE OF OAS. 



103 



PER CENTAGE COMPOSITON OP GAS. 



Hydrocarbons and olefiant gas equivalent to 14.05 



per cent, olefiant gas 11.06 



Light carburetted hydrogen .-. 22.89 



Hydrogen 45.58 



Carbonic oxide 20.44 



Carbonic acid ,03 



Nitrogen and Oxygen, (traces) 



100.00 



Amount of carbonic acid generated by 1 volume of conden- 

 sible hjdrocarbons=S.54 volumes. 



ACTUAL CONSTITUENTS. 



Cubic feet. 



Hydrocarbons and olefiant gas 143.8=182.6 olefiant gas. 



Light carburetted hydrogen 297.8 



Hydrogen 592.7 



Carbonic oxide 265.8 



Carbonic acid .4 



Aqueous vapour 19.5 



1320.0 



Gain in illuminating power by appli- 

 cation of water gas = 



Gain in quantity of olefiant gas ... 

 Gain in quantity of gas 



Per cwt. 



288.6 candles. 



95.3 cub. ft. 



842 " " 



Per ton. 



5772 candles. 

 1906 cub. ft. 

 16,840 « " 



Per cent. 



108.6 

 109.2 

 176.2 



NEWCASTLE CANNEL, (RAMSAY'S.) 



I.— WITHOUT WATER GAS. 



Cannel used 1121bs, 



Gas produced 515 cubic feet. 



Coke left 7441bs. 



Time occupied 3h. 25m. 



