 He was made chair of epigraphy and Roman antiquities of the College de France 1861 and Ecole pratique des hautes études (Philology section) in 1864 and honorary president of the archeology of the University Library, President of Historical and Philological Sciences at the School of Advanced Studies, member of the Société des Antiquaires de France.He directed the publication of the 5th volume of the Catacombs of Rome and was one of the first sent to Algeria in order to collect and study Roman inscriptions there.He was part of the Commission published the Complete Works of Bartolomeo Borghesi and gave a classic edition of Theocritus and several other Greek writers, with translation.