A history of early Roman liturgy to the death of Pope Gregory the Great. By G. G. Willis. (Subsidia, I.) (With the memoir of G. G. Willis by Michael Moreton.) Pp. xv + 168. Woodbridge: Boydell Press (for the Henry Bradshaw Society), 1994. £25. 1 870252 06 3; 1352 1047 - Spinks, Bryan D. (The journal of ecclesiastical history, 1995)