deepened his geology knowledge by studying the rocks and landscape of the island.

In 1920, he became a lecturer in geology at the Catholic University of Paris, and later a professor. He earned his doctorate in 1922. In 1923 he was hired to do geological research on expeditions in China by the Jesuit scientist and priest Emile Licent. In 1914, Licent with the sponsorship of the Jesuits founded one of the first museums in China and the first museum of natural science: the Musée Hoangho Paiho.