The moaning of the breeze increased, and the screech-owl shrieked as she flitted unseen around me. At this moment a scream of agony was heard in the distance, as of some mortal frame writhing in indescribable anguish, while a hoarse and wizard voice cried, “Endure! endure!” It ceased; and then I heard a pattering and flutter, and then a shrill squeaking, as of some tiny creatures that were playing their gambols in the darkness which again came around me. On a sudden all was hushed, and there was a glimmer of cold twilight, as when a horn of the moon, as Astrophel would say, comes out from an eclipse; and then a brighter gleam of bluer light burst through the gloom, at which I confess I started, and my hand dropped into a pool of blood. Like the astonished Tam O’Shanter, it seemed that I was alone in the chamber of death, or the solitary spectator of some demon incantation or of some wholesale murder. There were some forms blue and livid, some cadaverous, of “span-long, wee, unchristened bairns,” and others deluged in blood and impurity lay around me: one pale and attenuated form, that more than mocked the delicate beauty of the Medicean Venus, lay naked on the ground. On the athletic form of another the moonbeam fell in a glory, as if the fabled legend of Endymion was realized before my eyes. ASTR. And—— EV. Ay, now for the secret—the _materiel_ of this wild vision. The truth was, I had dropped asleep in the dissecting-room—the candle had burned out; and thus, with a copious supply of dead bodies, the howling of a tempest, the purple storm-clouds, the blue gleams of moonshine, and bats, and screech-owls, and the screams of patients in the surgical wards, and withal the hoarse voices of those croaking comforters, the night-nurses,—I have placed before you a harmony of horrors, that might not shame a legend of Lewis, or a Radcliffian romance. Simple as this will be the explanation of many and many a tale of mystery, although fraught with accumulated horrors, like those of the “Castle of Udolpho;” and if, putting aside that ultraromantic appetite for the marvellous, we have courage to attempt their analysis, the pages of demonology will be shorn of half their terrors, the gulph of superstition will be illumined by the light of philosophy, and creation stand forth in all its harmonious and beautiful nature. PHANTASY FROM CEREBRAL EXCITEMENT. ——“A false creation, Proceeding from the heat-oppressed brain.” MACBETH. ASTR. I will grant the influence of all these inspiring causes, Evelyn, but it is not under adventitious circumstances _alone_ that the gifted seer is presented with his visions, but also in the clear daylight, in the desert, or in a mountain hut; surrounded, too, by those who are content with the common faculties of man.