Without contradiction the legend of St. Brandan is the most singular product of this combination of Celtic naturalism with Christian spiritualism. The taste of the Hibernian monks for making maritime pilgrimages through the archipelago of the Scottish and Irish seas, everywhere dotted with monasteries, [Footnote: The Irish saints literally covered the Western seas. A very considerable number of the saints of Brittany, St. Tenenan, St. Renan, etc., were emigrants from Ireland. The Breton legends of St. Malo, St. David, and of St. Pol of Leon are replete with similar stories of voyages to the distant isles of the West.] and the memory of yet more distant voyages in Polar seas, furnished the framework of this curious composition, so rich in local impressions. From Pliny (IV. xxx. 3) we learn that, even in his time, the Bretons loved to venture their lives upon the high seas, in search of unknown isles. M. Letronne has proved that in 795, sixty-five years consequently before the Danes, Irish monks landed in Iceland and established themselves on the coast. In this island the Danes found Irish books and bells; and the names of certain localities still bear witness to the sojourn of those monks, who were known by the name of Papae (fathers). In the Faroe Isles, in the Orkneys, and the Shetlands, indeed in all parts of the Northern seas, the Scandinavians found themselves preceded by those Papas, whose habits contrasted so strangely with their own. [Footnote: On this point see the careful researches of Humboldt in his History of the Geography of the New Continent, vol. ii.] Did they not have a glimpse too of that great land, the vague memory of which seems to pursue them, and which Columbus was to discover, following the traces of their dreams? It is only known that the existence of an island, traversed by a great river and situated to the west of Ireland, was, on the faith of the Irish, a dogma for mediaeval geographers.