The second part of vol. iv. of the Corpus Inscriptionum Graecarum (1859, containing the Christian inscriptions) and vol. i. of the Corpus Inscriptionum Atticarum (1873, containing the inscriptions before 403) with supplements thereto (vol. iv. pts. 13, 1877–1891) are edited by him. From 1860 to 1902, he was in charge of the Inscriptiones Graecae. He edited Hermes (1866–81).
