St. Justin affirms that the sibyls foretold events correctly, and quotes Plato as coinciding with him in that view. St. Athenagoras says of the faculty of prescience, that “it is proper to the soul.” Volumes might be readily filled with quotations like the foregoing, showing that clairvoyance has been received as true by profound thinkers in every age. Swedenborg, Zschokke, Davis, are not peculiarities of modern times, but repetitions of Socrates, Apollonius, and countless others who deeply impressed their personality on their times. WHAT IS CLAIRVOYANCE?--Clairvoyance is a peculiar state of impressibility, presenting gradations from semi-consciousness to profound and death-like trance. Whether natural, or induced by artificial means, the attending phenomena are similar. In its most perfect form the body is in deepest sleep. A flame may be applied to it without producing the quiver of a nerve; the most pungent substances have no effect on the nostrils; pins or needles thrust into the most sensitive part give no pain; surgical operations may be performed without being felt. Hearing, tasting, smelling, feeling, as well as seeing, are seemingly independent of the physical organs. The muscular system is either relaxed or rigid; the circulation impeded in some cases until the pulse becomes imperceptible; and respiration leaves no stain on a mirror held over the nostrils. In passing into this state, the extremities become cold, the brain congested, the vital powers sink, a dreamy unconsciousness steals over the faculties of the mind. There is a sensation of sinking or floating. After a time the perceptions become intensified; we can not say the senses are intensified, for they are of the body, which for the time, is insensible. The mind sees without the physical organs of vision, hears without the organs of hearing, and feeling becomes a refined consciousness, which brings it _en rapport_ with the intelligence of the world. The more death-like the conditions of the body, the more lucid the mind, which for the time owes it no fealty.