One characteristic of the Celtic folk-lore I have endeavoured to represent in my selection, because it is nearly unique at the present day in Europe. Nowhere else is there so large and consistent a body of oral tradition about the national and mythical heroes as amongst the Gaels. Only the byline, or hero-songs of Russia, equal in extent the amount of knowledge about the heroes of the past that still exists among the Gaelic-speaking peasantry of Scotland and Ireland. I have endeavored to include in this volume the best and most typical stories told by the chief masters of the Celtic folk-tale, Campbell, Kennedy, Hyde, and Curtin, and to these I have added the best tales scattered elsewhere. By this means I hope I have put together a volume, containing both the best, and the best known folk-tales of the Celts.