1. See W. H. Auden. The Permanence of Yeats, ed. by James Hall and Martin Steinmann (New York, 1950), p. 346.

2. Arland Ussher, Three Great Irishmen (New York, 1957), p. 51.

3. Richard Ellmann, Yeats: The Man and the Masks (New York, 1948), p. 230.

4. Lady Gregory, Visions and Beliefs in the West of Ireland Collected and Arranged by Lady Gregory: With Two Essays and Notes by W. B. Yeats (New York, 1920), p. 265.

5. Ibid., p. 67.

6. W. B. Yeats, Mythologies (London, 1959), p. 7.

7. Ibid., p. 106.

8. Virginia Moore, The Unicorn (New York, 1954), p. 9.

9. Yeats, op. cit., p. 67.

10. W. B. Yeats (ed.), Irish Folk Stories and Fairy Tales (New York, n.d.), p. xi.

11. Ellmann, op. cit., p. 291.

12. See L. A. G. Strong, “William Butler Yeats,” Scattering Branches, ed. by Stephen Gwynn (New York, 1940), pp. 209–10.

13. Ernst Robert Curtius, European Literature and the Latin Middle Ages (New York, 1953), p. 8.