I have purposely abstained from offering a conjecture as to any possible indebtedness on the part of Dante to the Visions of the Irish school, and to the _Fis Adamnáin_ in particular, further than as these, by reviving, transmitting, and popularising the theme, placed ready to his hand the subject which was, of all others, best adapted to his genius, and, at the same time, best calculated to appeal to the public of his day. The various topics into which this examination has compelled the writer to enter--Dante literature, Celtic tradition, folklore, mythology--are all favourite subjects with that type of theorist who is wont to accompany a small modicum of the bread of fact with an intolerable deal of the sack of hypothesis, to the no small detriment of critical sobriety, so that one who approaches the subject with no preconceived theory of his own to prove--unless, like those present at a revival meeting, he be set a-prophesying by contagion--is apt to become almost as sick of these shadows as was the Lady of Shalott of those in her magic glass. I have therefore endeavoured to present the author of the _Fis Adamnáin_ merely as a ‘precursor’ of Dante, without attempting to prove him Dante’s ‘progenitor.’ All the same, I do not think I am transgressing these limits by suggesting the almost certainty that so omnivorous a reader as Dante must have been acquainted with works so generally known at and prior to his day as the Voyages of St. Brendan, the Vision of Tundale, and the legends of St. Patrick’s Purgatory, all of which were more or less influenced by the _Fis Adamnáin_, and were productions of the same school. There is no ground to imagine that Dante was acquainted with the _Fis Adamnáin_, nor can that supposition be entertained unless it can be shown that there existed in his day a translation of it into Latin, or one of the Romance languages, to which he might have had access. Indeed, pending the results of future research, it is impossible to put forward any work, or group of works, as the model which Dante followed. Probably no such model will ever be discovered, for the simple reason that none such ever existed. It is true that Dante availed himself freely of all that the previous Vision literature could give him, just as he drew copiously from every source at his command. But for the Latin classics, and Virgil in particular; but for the Latin Fathers, Augustine, Jerome, and Gregory; the Schoolmen, from Erigena to Thomas Aquinas; the Romance poets of France and Italy, it is certain that Dante’s work, as we have it, could never have come into being. So much may be claimed for the Visions of the Irish school, and, apparently, no more, but even this much is enough to entitle them to a place in the history of modern literature. Indeed, independently of any such relation of cause and effect between the two, the writings of the Irish school would still constitute an interesting study, both as the fruits obtained by