sentences:  From 1873 to 1888 he was editor of the journal "Matériaux pour l'Histoire primitive et naturelle de l'Homme".From 1873 to 1913 he was involved in numerous scientific missions throughout Asia Minor, North Africa, Armenia and the Caucasus region.He was a founding member of the Société de géographie de Lyon (1873) and the Société préhistorique française (1904).