The papacy and the new world order. La papauté et le nouvel ordre mondial (1878–1903). Vatican diplomacy, Catholic opinion and international politics at the time of Leo XIII. Diplomatie vaticane, opinion catholique et politique internationale au temps de Leo XIII. Edited by Vincent Viaene. (KADOC Studies on Religion, Culture and Society, 4.) Pp. 516 incl. numerous ills. Leuven: Leuven University Press, 2005. €38 (paper). 90 5867 518 1