... illustrations of the general nature of a candle that I can possibly give The fuel provided, the means of bringing that fuel to the place of chemical action, the regular and gradual supply of air ... source of heat, and I am about to shew you what that vapour is Here is some wax in a glass flask, and I am going to make it hot, as the inside of that candle- flame is hot, and the matter about the ... it, and obtain absolutely the flame of the candle at a place distant from it Now, look at that Is not that a very pretty experiment? Talk about laying on gas why, we can actually lay on a candle! ...