French priest. He spent most of his life in Lyons. While staying at Amay-sur-Meuse (see Chevetogne) his interest in the Ecumenical Movement was aroused. He introduced a Triduum or three-day period of prayer for Christian unity at Lyons in 1933, followed in 1934 by an octave of prayer from 18 to 25 Jan. This was a development of the Church Unity Octave (q.v.). He engaged in vast correspondence in connection with his ecumenical work, and produced and distributed numerous tracts on prayer for unity.