Book Review: Living Worship. By David G. Peck. The Archbishop of Canterbury's Lent Book for 1945. Eyre and Spottiswoode. 4s. 6d; Worship and the Common Life. By Eric Hayman. Cambridge University Press. 7s. 6d; Saint Thomas Aquinas on the Sacraments. By W. B. Monahan. Baylis. 10s. 6d; The Christian Sacrifice. By Eugene Masure. Translated by Dom Illtyd Trethowan. Burns Oates and Washbourne. 15s.