Caligula, his bridge, so-called, 101; places his mother's ashes in the mausoleum, 184. Callixtus, death, 220. ----, Catacombs of. See _Catacombs_. Calpurnii, their tomb, 276; their history, 277. Cambyses, conquest of Egypt, 94. Camillus, capture of Veii, 64. Campagna, 286 (plate). Campo dell' Augusta, 179. Campus Esquilinus, 256. Campus Martius, 74; early excavations in, 98. Candelabrum, in church of SS. Nereo ed Achilleo, 26 (cut); in Church of S. Paolo, 239 (cut). Canevari, Ant., 159. Canova, his tomb of Clement XIII., 250. Capitoline games, 281. Capitoline Hill, 85; the western summit, 86 (plate). Capitoline museum, 15, 42, 59, 70, 93, 106, 190, 255, 290 n. See, also, _dei Conservatori_, under _Palaces_. Capitolium. See _Temple of Jupiter Optimus Maximus_. Caracalla, 12. Carrhæ, 355. Carthage, excitement against the Christians in, 318. Castel S. Angelo, 234. Catacombs. Crypt of the Acilii Glabriones, 4; its devastation in the 17th cent., 8; burial of Christian martyrs, 119; injury occasioned by the building of churches over the tombs of martyrs, 122; preferred by the early Christians to open-air cemeteries, 308; their development in the 2d century, 317; the names given them, 317; their secret entrances, 318; not habitable, 319; their extent, 319; compared to the tombs of the kings at Thebes, 321; their use declined in the 4th century, 321; pillaged by the Goths, 324; restored by Pope Vigilius, 325; unmentioned by later Church annals, 327; discovered in 1578, 328; their wholesale pillage, 329; the treasures found in them, 331; the number of the Catacombs, 332. ---- of Callixtus, 50, 117, 216, 219, 339; ---- ad Catacumbas or of S. Sebastiano, 345; the bodies of SS. Peter and Paul concealed here, 346; ---- of Cyriaca, 350; ---- of Domitilla, 335; the Flavian crypt, 316 (cut), 330, 336; the basilica of Nereus and Achilleus, 338; the tomb of Ampliatus, 342; ---- ad Duas Lauros, or of SS. Peter and Marcellinus, 354; a fresco of the Saviour with SS. Paul and Peter, 356; relics of Renaissance humanists, 358; ---- of Generosa, 332; ---- of Pontianus, 221; ---- of Prætextatus, the cubiculum of S. Januarius, 322 (cut); ---- of Priscilla (map), 7, 23, 42, 111, 221; ---- of the Via Salaria, 285. Catacumba, derivation of the word, 345. Caves for burial on the Viminal and Esquiline, 255. Ceadwalla, King, baptism and death, 231; tomb, 232. Celibacy discouraged, 80. Cellæ, 42. Cellini, Benvenuto, the cause of his imprisonment, 247.