A LESSON IN CHEMISTRY.

[MR. FORSTER'S STORY.]

I took the powder as agreed, and sat down to read the evening paper before retiring, with the result that I did not retire at all. I became much interested in an article on new explosives with which the Government has been lately experimenting, and had nearly finished it, when I heard a voice say to me, "Interesting subject, isn't it?"

I turned, and saw seated on my lounge a peculiar-looking man: his clothes seemed to be all run in together. You could make out the outlines of the man, but the figure was not clear; sort of foggy, you know. What surprised me most was that I could

look right through him and see that back of the lounge.

I said to myself, "Is this a dream or the effect of the powder I have taken?" and I pinched my leg, and rubbed my eyes, but although I seemed to be perfectly wide awake, the shape did not disappear.

"What did you say?" I asked.

"I remarked that the subject of high explosives was decidedly interesting," answered the shape. "I was a chemist when alive, but it makes me sad to think how very little I really knew. Chemistry, as well as other branches of science, has made great strides during the past generation, since my day, but even now they really know very little."

"But," I answered, "it seems to me the high explosives which we now have are sufficiently powerful if we knew how to use them with safety."