To prevent the bottle from being broken by the sparks, a small quantity of sand should be previously poured into it.
GLOW-WORM IN OXYGEN GAS.
If a glow-worm be placed in a jar of oxygen gas, in a dark room, it will shine with a far surpassing brilliancy to that which it exhibits in atmospheric air.
LUMINOUS CHARCOAL.
Attach a small piece of charcoal to the end of a copper-wire; make it red-hot, and immerse it in a jar of oxygen gas. The charcoal will burn with great brilliance, throwing out splendid scintillations. The bark of the wood converted into charcoal must be selected, otherwise there will be no scintillations.
BRILLIANT COMBUSTION IN OXYGEN.
Place in a bottle of oxygen gas a lighted taper, and it will burn with a flame of increased brilliancy.
Extinguish the taper immediately; put it into the same or another bottle of oxygen, and it will be again lighted provided a spark remain on the wick.
Bend a piece of iron wire in a spiral form, and tie on to one end some cotton or flax; sprinkle some flour of sulphur on it, set it on fire, dip it into a bottle of oxygen gas, and beautiful corruscations will be thrown off the wire.