naturalist, explorer, and collector of ethnological artifacts in Africa and the Philippine Islands. Marche made four trips to Africa as a naturalist attached to various expeditions. In 1872, 1873, and 1875 he explored the Ogooué River (in Gabon), on the last occasion staying for two years, under the command of the French explorer Savorgnan de Brazza. After taking part in an expedition to Central Africa (1878), Marche made two voyages to the Philippines (1879–81 and 1882–84), collecting pre-Spanish artifacts on remote islands. His last mission was to the Marianas Islands in 1886.