Yes, indeed, it makes the charcoal burn much brighter.
MRS. B.
Whilst it is red-hot, I shall drop some iron filings on it, and supply them with a current of oxygen gas, by means of this apparatus, ([Plate XII.] fig 2.) which consists simply of a closed tin cylindrical vessel, full of oxygen gas, with two apertures and stop-cocks, by one of which a stream of water is thrown into the vessel through a long funnel, whilst by the other the gas is forced out through a blow-pipe adapted to it, as the water gains admittance.—Now that I pour water into the funnel, you may hear the gas issuing from the blow-pipe—I bring the charcoal close to the current, and drop the filings upon it—
CAROLINE.
They emit much the same vivid light as the combustion of the iron wire in oxygen gas.
MRS. B.
The process is, in fact, the same; there is only some difference in the mode of conducting it. Let us burn some tin in the same manner—you see that it is equally combustible.—Let us now try some copper—
CAROLINE.
This burns with a greenish flame; it is, I suppose, owing to the colour of the oxyd?
EMILY.