and z = w - a.

6. Olefiant gas, carburetted hydrogen and carbonic oxide.

Let a = the olefiant gas, y = the carburetted hydrogen, and z = equal the carbonic oxide, g = the oxygen entering into combination, and a = the carbonic acid produced; also w = the whole volume as before.

Then we have x + y + z = w,
3x + 2y + ½z = g,
and 2x + y + z = a.
Whencex =a - w,
y =4w - 5a + 2g,
3
andz =⅔(w + a - g).

7. Superolefiant gas,[29] carburetted hydrogen, and carbonic oxide.

Let x = volume of superolefiant, y = volume of carburetted hydrogen, z = volume of carbonic oxide, g = the oxygen combining, a = carbonic acid produced, and w = volume of mixed gas.

Thenx + y + z = w,
x + 2y + ½z = g,
and 3x + y + z = a.
Whence x = a - w
2
y = 3w - 4a + 2g
3
and z = 3w - 4g + 5a
6

8. Superolefiant gas, carburetted hydrogen,
carbonic oxide, and hydrogen.