"What is the world that lies around our own ? Shadowy, unsubstantial, and wonderful are the viewless elements, peopled with spirits powerful and viewless as the air which is their home. From the earth's earliest hour, the belief in the supernatural has been universal. At first the faith was full of poetry ; for, in those days, the imagination walked the earth even as did the angels, shedding their glory around the children of men. The Chaldeans watched from their lofty towers the silent beauty of night — they saw the stars go forth on their appointed way, and deemed that they bore with them the mighty records of eternity. Each separate planet shone on some mortal birth, and as its aspect was for good or for evil, such was the aspect of the fortunes that began beneath its light. Those giant watch-towers, with their grey sages, asked of the midnight its mystery, and held its starry roll to be the chronicle of this breathing world. Time past on, angels visited the earth no more, and the divine beliefs of young imagination grew earthlier. Yet poetry lingered in the mournful murmur of the oaks of Dodona, and in the fierce war song of the flying vultures, of whom the Romans demanded tidings of conquest. But prophecy gradually sank into divination, and it is a singular proof of the extent both of human credulity and of curiosity, to note the various methods that have had the credit of forestalling the future. From the stars to a tea-cup is a fall indeed —"