a French theologian, was born at Paris, Oct. 7, 1747. He was successively vicar of the parish of the Innocents, director of the Carmelite nuns, then rector of the foreign missions of St. Merry. He died Oct. 17, 1827. He wrote, Vie de la Bienheureuse Saeur Marie de l'Incarnation, .dite dans le Monde Mademoiselle Acarie, etc. (Paris, 1800): — Retraite d'apres les Exercises Spirituels de Saint Ignace (ibid. 1807): — Vie de Sainte Therese (ibid. 1810). Boucher co-operated in the publication of the Sermons of the abbot of Marolles. See Hoefer, Nouv. Biog. Generale, s, V.