 After the death of Charles Schefer (1898), he held the Chair of Persian at the École des langues orientales, where Henri Massé succeeded him (1886–1969).In 1908 he was appointed Director of Studies for Islam and the religions of Arabia at the EPHE.In January 1919, he was elected a member of the Académie des Inscriptions et Belles-Lettres, of which he became president in 1927.