"Only last night I was sweeping the sky with the telescope when I noticed, in Hercules and Lyra, and all that part of the heavens, a dimming of some of the fainter stars. It was like the shadow of the shroud of a ghost. Nobody else would have noticed it, and I wouldn't if I had not been looking for it. It's knowledge that clarifies the eyes and breeds knowledge, Joseph Smith. It was not truly visible, and yet I could see that it was there. I tried to make out the shape of the thing—but it was too indefinite. But I know very well what it is. See here"—he suddenly broke off—"Look at that photograph." (He was pointing at the Lord Rosse Nebula on the wall). "It's like that, only it's coming edgewise toward us. We may miss some of the outer spirals, but we're going smash into the center."
With fallen jaw, and black brows contracted, Joseph Smith stared at the photograph.
"It doesn't shine like that," he said at last.
The little man snorted contemptuously.
"What have I told you about its invisibility?" he demanded.
"But how, then, do you know that it is of a watery nature?"
Cosmo Versál threw up his hands and waved them in an agony of impatience. He climbed upon his stool to get nearer the level of the other's eyes, and fixing him with his gaze, exclaimed:
"You know very well how I know it. I know it because I have demonstrated with my new spectroscope, which analyzes extra-visual rays, that all those dark nebulae that were photographed in the Milky Way years ago are composed of watery vapor. They are far off, on the limits of the universe. This one is one right at hand. It's a little one compared with them—but it's enough, yes, it's enough! You know that more than two years ago I began to correspond with astronomers all over the world about this thing, and not one of them would listen to me. Well, they'll listen when it's too late perhaps.
"They'll listen when the flood-gates are opened and the inundation begins. It's not the first time that this thing has happened. I haven't a doubt that the flood of Noah, that everybody pretends to laugh at now, was caused by the earth passing through a watery nebula. But this will be worse than that; there weren't two thousand million people to be drowned then."
For five minutes neither spoke. Cosmo Versál swung on the stool, and played with an ellipsograph; Joseph Smith dropped his chin on his breast and nervously fingered the pockets of his long vest. At last he raised his head and asked, in a low voice: