is the truth, nay, to adopt our common language, the sole and scientific truth, verified by experience; and the universe is verily more splendid and more awful than we used to dream. The whole universe, my friend, is a tremendous sacrament; a mystic, ineffable force and energy, veiled by an outward form of matter; and man, and the sun and the other stars, and the flower of the grass, and the crystal in the test-tube, are each and every one as spiritual, as material, and subject to an inner working. "You will perhaps wonder, Haberden, whence all this tends; but I think a little thought will make it clear. You will understand that from such a standpoint the whole view of things is changed, and what we thought incredible and absurd may be possible enough. In short, we must look at legend and belief with other eyes, and be prepared to accept tales that had become mere fables. Indeed, this is no such great demand. After all, modern science will concede as much, in a hypocritical manner. You must not, it is true, believe in witchcraft, but you may credit hypnotism; ghosts are out of date, but there is a good deal to be said for the theory of telepathy. Give a superstition a Greek name, and believe in it, should almost be a proverb. "So much for my personal explanation. You sent me, Haberden, a phial, stoppered and sealed, containing a small quantity of a flaky white powder, obtained from a chemist who has been dispensing it to one of your patients. I am not surprised to hear that this powder refused to yield any results to your analysis. It is a substance which was known to a few many hundred years ago, but which I never expected to have submitted to me from the shop of a modern apothecary. There seems no reason to doubt the truth of the man's tale; he no doubt got, as he says, the rather uncommon salt you prescribed from the wholesale chemist's; and it has probably remained on his shelf for twenty years, or perhaps longer. Here what we call chance and coincidence begins to work; during all these years the salt in the bottle was exposed to certain recurring variations of temperature, variations probably ranging from 40° to 80°. And, as it happens, such changes, recurring year after year at irregular intervals, and with varying degrees of intensity and duration, have constituted a process, and a process so complicated and so delicate, that I question whether modern scientific apparatus directed with the utmost precision could produce the same result. The white powder you sent me is something very different from the drug you prescribed; it is the powder from which the wine of the Sabbath, the _Vinum Sabbati_ was prepared. No doubt you have read of the Witches' Sabbath, and have laughed at the tales which terrified our ancestors; the black cats, and the broomsticks, and dooms pronounced against some old woman's cow. Since I have known the truth I have often reflected that it is on the whole a happy thing that such burlesque as this is