ori_, under _Palaces_.

Capitolium. See _Temple of Jupiter Optimus Maximus_.

Caracalla, 12.

Carrhae, 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 Praetextatus, 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.

Cellae, 42.

Cellini, Benvenuto, the cause of his imprisonment, 247.

Cemeteries, pagan, 253-305;
prehistoric cemeteries of the Viminal and the Esquiline, 254, 255;
extensive cemeteries along the high roads, 260;
on the Via Aurelia, 262;
on the Via Triumphalis, 270;
on the Via Salaria, 275;
buried under twenty-five feet of earth, 284;
on the Via Appia, 286;
Christian cemeteries, 306-361;
under the authority of the pontiffs, 307;
underground cemeteries preferred by the early Christians, 308;
their use revives after Constantine, 321, 323;
at Concordia Sagittaria, 323, 324 (plate);
suburban cemeteries ab