Curiously enough, M. Lot has not cited the closest parallel to our tale from old Irish literature, and one which is certainly connected with it in some measure, the fine story called the "Dream of Angus." A story of this title is cited in the epic catalogue of the Book of Leinster (which dates back to the early 11th century) as one of the introductory stories to the Tain bo Cuailgne. This assumed its present shape substantially between 650 and 750. The introductory stories had originally no connection with it, and were invented or re-shaped in the 8th to 10th centuries, after the Tain had taken undisputed place as the leading Irish epic. The tale may therefore be ascribed provisionally to the 9th century, if we can only be sure that the existing version, preserved in a single MS. of the 15th century, is a faithful copy of the original. There need be no doubt as to this. The text is due to a Christian scribe, and, like nearly all portions of the mythological cycle, betrays signs of Christian influence, though not of Christian remodelling. Such influence is, however, far more likely to have exerted itself in the first stage of the written existence of these tales, when the memory of organised paganism was still tenacious, than later, when the tales had become subject-matter for the play of free poetic fancy. The story, printed and translated by Dr. E. Muller, _Rev. Celt._, iv. 342, &c., is as follows: Angus (the chief wizard of the Tuatha de Danann) is visited in sleep by a maiden whose beauty throws him into love sickness. The whole of Ireland is scoured to find her; the Dagda is appealed to in vain. At length, Bodb, fairy king of Munster, finds her at Loch bel Dracon (this is not the only trace of the impression which the story of Bel and the Dragon made upon the Irish mind). She lives there with 150 swans; one year they are in swan shape the next in human shape. They appear as white birds with silvery chains and golden caps around their heads. Angus changes himself into a swan to be with her, and it is recorded of the music they made that "people fell asleep for three days and three nights." The soporific power of music is that which is chiefly commended in old Irish literature.