On Oil and Oil-gas. 81 
is nearly demonstrable that oil gas is a mixture 
of carburetted hydrogen, carbonic oxide 
and hydrogen, together with a greater or less 
portionof a gas sui generis, consisting of the 
élements of olefiant gas united in’ the same 
proportion, but differing in the nomber of 
atoms. Most probably the atom of the new 
gas consists of two of olefiant gas ; and the 
density or specific gravity of the new gas 1s 
greater than that of olefiant gas in the ratio of 
4 or 3; orits specific gravity is 1. 293, atmo- 
spheric air being }. 
Consistently with this view the constitution 
of the last specimen of gas and its proper- 
ties will be as exhibited below: 
Constitution of Oil-gas prepared for burning. 
Give Take 
Sp.Gr. Weights. carb.acid. —oxyg. 
7 Vol. carb. acid gas = 1.53 —— .1071 
30 Vol. superolefiant 1.293-——— .3879 ...--- 80 .... .120 
40 Vol. carb. hydrogen ,555-—— -2222 ...... ADO c. aala 80 
6 Vol. carb. oxide 9970 —— .0582 ..-... Bi vein ase 3 
7 Vol, hodrogen ,080 —— .0056 ....-.. — « vee. 3f 
10 Vol, azote 3970 ——- .0970  ....-. — --+ee —_ 
100 -8780 126 2062 
The differences between this imaginary con- 
stitution and the one observed above, either in 
the specific gravity of the mixture, the quan- 
tity of carbonic acid it would produce, or the 
L 
