For want of a name, I have called that vapour Gas, being not far severed from the chaos of the auntients. In the meantime it is sufficient for me to know that gas is a far more subtile or fine thing than a vapour, mist, or distilled oylinesse, although, as yet, it may be many times thicker than air.
In: George F. Kodwell, On the Supposed Nature of Air Prior to the Discovery of Oxygen, The Chemical News and Journal of Physical Science, Volume X, October 24, 1864 (p. 196)