"Without the tinsel and vulgarity, we flatter ourselves," answered the phantom.
By this time the preparations were complete, and Harry inquired whether the apparition would object to our putting out the lights in order to obtain definite results with the spectroscope. Our visitor politely replied that he was better accustomed to darkness than to the painful glare of our paraffin candles. "In fact," he added, "only the strong desire which I felt to convince you of our existence as ghosts could have induced me to present myself in so bright a room. Light is very trying to the eyes of spirits, and we generally take our constitutionals between eleven at night and four in the morning, stopping at home entirely during the moonlit half of the month."
"Ah, yes," said Harry, extinguishing the candles; "I've read, of course, that your authorities exactly reverse our own Oxford rules. You are all gated, I believe, from dawn to sunset, instead of from sunset to dawn, and have to run away helter-skelter at the first streaks of daylight, for fear of being too late for admission without a fine of twopence. But you will allow that your usual habit of showing yourselves only in the very darkest places and seasons naturally militates somewhat against the credibility of your existence. If all apparitions would only follow your sensible example by coming out before two scientific people in a well-lighted room, they would stand a much better chance of getting believed: though even in the present case I must allow that I should have felt far more confidence in your positive reality if you'd presented yourself in broad daylight, when Jim and I hadn't punished the whisky quite as fully as we've done this evening."
When the candles were out, our apparition still retained its fluorescent, luminous appearance, and seemed to burn with a faint bluish light of its own. We projected a pencil through the spectroscope, and obtained, for the first time in the history of science, the spectrum of a spectre. The result was a startling one indeed. We had expected to find lines indicating the presence of sulphur or phosphorus: instead of that, we obtained a continuous band of pale luminosity, clearly pointing to the fact that the apparition had no known terrestial element in its composition. Though we felt rather surprised at this discovery, we simply noted it down on our paper, and proceeded to verify it by chemical analysis.
The phantom obligingly allowed us to fill a small phial with the luminous matter, which Harry immediately proceeded to test with all the resources at our disposal. For purposes of comparison I filled a corresponding phial with air from another part of the room, which I subjected to precisely similar tests. At the end of half an hour we had completed our examination—the spectre meanwhile watching us with mingled curiosity and amusement; and we laid our written quantitative results side by side. They agreed to a decimal. The table, being interesting, deserves a place in this memoir. It ran as follows:—
Chemical Analysis of an Apparition.
| Atmospheric air | 96.45 | per cent. |
| Aqueous vapour | 2.31 | " |
| Carbonic acid | 1.08 | " |
| Tobacco smoke | 0.16 | " |
| Volatile alcohol | A trace | |
| ————- | ||
| 100.00 | " |
The alcohol Harry plausibly attributed to the presence of glasses which had contained whisky toddy. The other constituents would have been normally present in the atmosphere of a room where two fellows had been smoking uninterruptedly ever since dinner. This important experiment clearly showed that the apparition had no proper chemical constitution of its own, but consisted entirely of the same materials as the surrounding air.
"Only one thing remains to be done now, Jim," said Harry, glancing significantly at a plain deal table in the corner, with whose uses we were both familiar; "but then the question arises, does this gentleman come within the meaning of the Act? I don't feel certain about it in my own mind, and with the present unsettled state of public opinion on this subject, our first duty is to obey the law."
"Within the meaning of the Act?" I answered; "decidedly not. The words of the forty-second section say distinctly 'any living animal.' Now, Mr. Egerton, according to his own account, is a ghost, and has been dead for some two hundred years or thereabouts: so that we needn't have the slightest scruple on that account."