_How to dispose two little Figures, so that one shall light a Candle,
and the other put it out._
Take two little figures of wood or clay, or any other materials you
please, only taking care that there is a little hole at the mouth of
each. Put in the mouth of one a few grains of bruised gunpowder, and a
little bit of phosphorus in the mouth of the other; taking care that
these preparations are made before hand.
Then take a lighted wax candle and present it to the mouth of the
figure with the gunpowder, which taking fire will put the candle out:
then present your candle, having the snuff still hot, to the other
figure; it will light again immediately, by means of the phosphorus.
You may propose the same effect to be produced by two figures drawn
on a wall with a pencil or coal, by applying, with a little starch or
water, a few grains of bruised gunpowder to the mouth of one, and a bit
of phosphorus to the mouth of the other.