Cover a long slip of wood, half-way, with sulphur, by immersion while
in a melted state. Having prepared a jar of nitrous oxide gas, as in
preceding experiments, light the sulphur, and plunge the wand into the
jar. The gas will extinguish the flame. Withdraw the wand, light it
again, and when the flame is very brilliant, immerse it again in the
jar. It will this time burn with great splendour, and of a beautiful
red colour.