Important collections of Celtic folklore and one of the most important collections of Welsh folk and fairy legend, including many stories of fairy women who become wives and lovers. Many of these are from the lakes of Wales. John Rhys collected these tales from the Welsh speaking people. Their relationship to the Medieval manuscript material such as the Mabinogion and the Arthurian romances is amazing. The Lady of the Lake is a sister to many of the Lake Fairies here discussed. Included are a list of bibliographical references and a geographical list of authorities. At the time of original publication in 1901, John Rhys, D. Litt., was Professor of Celtic and Principal of Jesus College, Oxford University.