London, 1917.
_Miguel da Unamuno._ The Tragic Sense of Life in Men and in Peoples, Eng.trans.London, 1921.
_Evelyn Underhill._ Jacopone da Todi, Poet and Mystic.

London, 1919.
_C.B.

Upton._ The Bases of Religious Belief.

London, 1894.
_J.

Varendonck._ The Psychology of Day-Dreams.