it under his head. After some time the cock crew at the house of Blaen y Cwm, hard by, upon which they appeared as if they were surprised and displeased; the cushion was hastily whisked from under his head, and the fairies vanished. 'The spirits of darkness do not like the crowing of the cock, because it gives notice of the approach of day, for they love darkness rather than light.... And it hath been several times observed that these fairies cannot endure to hear the name of God.' A modern Welsh preacher (but one whose opinions contrast most decidedly with those of Jones) observes: 'The cock is wonderfully well versed in the circumstances of the children of Adam; his shrill voice at dawn of day is sufficient intimation to every spirit, coblyn, wraith, elf, bwci, and apparition to flee into their illusive country for their lives, before the light of day will show them to be an empty nothingness, and bring them to shame and reproach.'[55] Shakspeare introduces this superstition in Hamlet: _Ber._ It was about to speak, when the cock crew. _Hor._ And then it started like a guilty thing Upon a fearful summons.[56] But the opinion that spirits fly away at cock-crow is of extreme antiquity. It is mentioned by the Christian poet Prudentius (fourth century) as a tradition of common belief.[57] As for the effect of the name of God as an exorcism, we still encounter this superstition, a living thing in our own day, and in every land where modern 'spiritualism' finds believers. The mischief produced at 'spiritual seances' by 'bad spirits' is well-known to those who have paid any attention to this subject. The late Mr. FitzHugh Ludlow once related to me, with dramatic fervour, the result of his attempts to exorcise a bad spirit which was in possession of a female 'medium,' by trying to make her pronounce the name of Christ. She stumbled and stammered over this test in a most embarrassing way, and finally emerged from her trance with the holy name unspoken; the bad spirit had fled. This was in New York, in 1867. Like many others who assert their unbelief in spiritualism, Mr. Ludlow was intensely impressed by this phenomenon.