“ He devoted himself to the study of Chinese, and in 1851 published his Recherches sur l’agriculture et l’horticulture des Chinois, in which he dealt with the plants and animals that might be acclimatized in the West. At the Paris Exhibition of 1867 he acted as commissioner for the Chinese exhibits; in 1874 he succeeded Stanislas Julien in the chair of Chinese at the Collège de France ”