In the episode of Segda Saerlabrad, and again in the Adventures of Cormac, occurs that idea of chastity in connection with the Tír Tairngire to which, in its more developed form in the _Voyage of Bran_, we shall have to refer. This group, moreover, is marked by a tendency to conscious allegory which is foreign to the previous cycles. The maiden whom Conn finds in the dún is a personification of the sovereignty of Éire; and the dún visited by Cormac is a veritable ‘House of the Interpreter.’ The ethical significance of the wonders seen by Cormac on the way thither, and there expounded to him, is entirely symbolical of the life of this world, wherein the story resembles not merely the _Shepherd of Hermas_ and the _Pilgrim’s Progress_, but the _Tablet of Cebes_ and the _Choice of Herakles_ among the Greeks, and countless moral apologues, Oriental and mediæval. The Dé Danann chieftains, seated on their crystal thrones beside the marvellous tree and the vat of ale, are an advance upon the Dagda, seated beside his vat of ale and apple-trees, and display the legend in a stage at which it is ready to coalesce with, and give native colour to, the Hebraic imagery of the Throne and its Occupant. The pleasantly told little apologue of the Fountain of Knowledge and its five streams, which are the five senses, interprets a very primitive Irish legend in the light of a simple but not shallow philosophy. The Irish heroic tales having passed through the hands of Christian redactors, the question occurs whether we must ascribe to them any ethical element that occurs therein. Although it is hard to pronounce with certainty, where they contain no express reference to the Christian faith, it would be rash, and probably a mistake, to reply in the affirmative in all cases. Certain ethical ideas there must have been in pre-Christian Ireland, and the places and the mode in which we find them are often those in which they might most naturally appear. In the instances referred to, there is nothing inconsistent with a system of ethics far more primitive than that to which the ancient Irish might conceivably have attained. Moreover, there is nothing about the passages in question suggestive of an interpolation; they arise quite naturally out of the narrative, and in one striking instance, that of Segda Saerlabrad, are expressly bound up with the pagan idea of human sacrifice in a manner that no Christian writer could or would have invented. Neither does it seem likely that an ecclesiastical writer who should make such interpolations in the interest of the Christian religion would make no mention of that religion in connection with them. The very tales in question show in what a clumsy and perfunctory manner such interpolations were made, when it was found expedient to bring an ancient legend into agreement with Christian doctrine. Instances of this are furnished by the prophecies of Manannán Mac Lír in the _Voyage of Bran_, and the reference to the Judgment in the