PHOSPHORIC ILLUMINATION.

A light so brilliant that the eye can scarcely bear to contemplate it,

is produced by the immersion of phosphorus in oxygen gas. To perform

this experiment, you place a piece of phosphorus in a copper cup, of

the circumference of a sixpence, which is fastened to a thick piece of

iron wire, attached to a cork which fits a bottle (as in the foregoing

experiment) filled with oxygen gas. Set fire to the phosphorous, and

quickly plunge it into the bottle; when the splendour of the combustion

will be surpassingly beautiful.

It is necessary to observe, that the heat is so excessive, that if the

piece of phosphorous in this experiment be larger than a small pea,

there will be great danger of breaking the bottle.

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