He served as Dean of the Faculty of Science of the University of Paris from 1903 to 1920 and, at the end of his deanship, he was appointed Rector of the University of Paris.
Siya ay nagsilbi bilang Dean ng Faculty of Science ng University of Paris 1903-1920 at, sa dulo ng kanyang dekanato, siya ay hihirangin Rector ng University of Paris.