Book Review: Christology. By Dietrich Bonhoeffer. Collins, 1966. 125 pp. 18s.; The Christian Witness in an Industrial Society. By Horst Symanowski. Collins, 1966. 160 pp. 16s.; Secular Christianity. By Ronald Gregor Smith. Collins, 1966. 222 pp. 25s - Nurser, J. S. (Theology, 1966)