marsh gas

An example of a hydrocarbon or compound of carbon and hydrogen, is marsh gas (methane) or firedamp, CH4.

Aluminum carbide yields alumina and methane (marsh gas), another hydro-carbon, the chief constituent of natural gas.

Here goes: marsh gas, or methane as it is sometimes called, is the first of the group of hydrocarbons known as paraffins.

That's really methane, marsh gas, the same stuff that makes the will-o'-the-wisp you can see dancing around over a marsh.

These escape into the air and the spontaneous combustion of the phosphine ignites the marsh gas.

Marsh gas and other inflammable gases commonly rise from such places, and are often ignited by man, or by lightning, etc.

But it was only the marsh gas escaping with a sound like a low chuckle.

In summer time, a succession of bubbles—doubtless caused by marsh gas—keep constantly appearing on the surface.

Franklin's study of marsh gas and effect of oil on water, 390.

Colliery explosions of fire-damp (marsh gas) became alarmingly frequent, especially in the north of England.