. A course of six lectures on the chemical history of a candle [electronic resource]: to which is added, a lecture on platinum. Fi?. 23. in oxygen; but it will soon communicate itscombustion to the iron. The iron is now burn-ing brilliantly, and will continue so for a longtime. As long as we supply oxygen, so longcan we carry on the combustion of the iron,until the latter is consumed. We will now put that on one side, and takesome other substance; but we must limit ourexperiments, for we have not time to spare for 106 SULPHUR BURNING IN OXYGEN. all the illustrations you would have a right toif
. A course of six lectures on the chemical history of a candle [electronic resource]: to which is added, a lecture on platinum. Fi?. 23. in oxygen; but it will soon communicate itscombustion to the iron. The iron is now burn-ing brilliantly, and will continue so for a longtime. As long as we supply oxygen, so longcan we carry on the combustion of the iron,until the latter is consumed. We will now put that on one side, and takesome other substance; but we must limit ourexperiments, for we have not time to spare for 106 SULPHUR BURNING IN OXYGEN. all the illustrations you would have a right toif we had more time. We will take a piece ofsulphur: you know how sulphur burns in theair; well, we put it into the oxygen, and youwill see that whatever can burn in air can burnwith a far greater intensity in oxygen, leadingyou to think that perhaps the atmosphere itselfowes all its power of combustion to this Fig. 24. The sulphur is now burning very quietly in theoxygen ; but you cannot for a moment mistakethe very high and increased action which takesplace when it is so burnt, instead of being burntmerely in common air. * I am now about to show you the combustionof another substance—phosphorus. I can doit better for you here than you can do it athome. This is a verjr combustible substance; PHOSPHORUS BURNING IN OXYGEN. 107 and if it be so combustible in air, what mightyou expect it would be in oxygen 1 I am aboutto show it to you not in its fullest intensity, forif I did so we should almost blow the apparatusup; I may even now crack the jar, though I donot want to break things carelessly. You seehow it burns in the air. But what a gloriouslight it gives out when I introduce it intooxygen! [Introducing the lighted phosphorusinto the jar of oxygen.] There you see thesolid particles going off which cause that com-bustion to be so brilliantly luminous. Thus far we have tested this power of
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