A French and Orientalist. He was born at Thil, Meurthe-et-Moselle. He studied at the Seminary of Saint Sulpice, was ordained in 1887, and received his doctorate in 1897. He was a professor of mathematics at the Institut catholique of Paris from 1890 to 1931, becoming dean of the School of Sciences in 1928. Curious to understand literature, he studied Syriac. He wrote his thesis, Book of the and Spirit of , at the des Hautes Etudes. He co-founded the series with R. Graffin; in it he published twelve fascicles, numbers 11, 19, 36, 45, 46, 47, 51, 63, and 113 (1905-1931). He was secretary (1905-1911) and then director of the Revue de l’Orient chrétien (1911-1919), for which he wrote more than a hundred articles (1896-1931).

Among his books, the following are to be noted: et Sagesse d’Ahiqar l’Assyrien (1909), Le d’Héraclide de Damas, about Nestorius (1910), and La Didascalie des apôtres. The of his works comprises some 248 titles, without counting articles for the Dictionnaire de la Bible, Dictionnaire de théologie catholique, Dictionnaire d’ et de géographie ecclésiastique, Journal asiatique, and other such works.