riff for, 57.

Saint-Omer, church at, labyrinth, 31.

Sallust, gardens of, 276.

Sancus, worship of, 104.

Sannazzaro, tomb of, 25.

Saracens in Rome, in 846, 149;
defeated off Cape Circeo, by John VIII., 154.

Sarcophagi of the Calpurnii, 279, 280 (cut);
from the cemetery of Cyriaca, 352.

Sarcophagus, of the empress Helena, 198 (plate);
of S. Constantia, 198.

Saturus, martyr, 49.

Scholae, 42, 116;
that of the citizens of Serrae, 41:
that above the Catacombs of Callixtus, 117, 118 (plan);
transformation of the schola to the church, 118.

Scirtus, charioteer, 260.

Seasons, the four, in Christian art, 25.

Secular games, the inscription describing them found in 1890, 73 (cut);
origin of the games, 74;
their celebration under Augustus, 78-82.

Semo Sancus, worship of, 104; statue, 105 (cut).

Senate, resolutions relating to the Secular games, 80.

Senate house, 163.

Seneca, his friendship for Paul, 17.

Septimius Severus, 12.

Sergius II., Pope, 149.

Serrae, citizens of, their banqueting-hall, 41.

Severus Alexander, relation to Christianity 11, 13.

Shoemakers, 274.

Shrines, in Rome, 33;
of Semo Sancus, 104.
See also _Altars._

Sibyls in Christian art, 24.

Siena, Duomo, 25, 32.

Silvio Antoniano, an improvvisatore, 283.

Simon the Magician, confused with Semo Sancus, 104, 161.

Simplicius and Faustinus, martyrs, 332;
their bodies translated to S. Biviana, 333.

Siricius, Pope, 112, 152.

Sixtus II., Pope, 117.

Sixtus V., Pope, the dome of St. Peter's, 146.

Skeletons found in tombs, 273, 286.

Solomon, Judgment of, represented in a Roman tomb, 270, 271 (cut).

Sponges, found in tombs, 303 n.

Statues, their immense number in ancient Rome, 52;
those of gods commonly loaded with ornaments, 55;
Egyptian statues, found in Rome, 93.

---- to Acilius Glabrio, 5;
of Antinous, 240, 241 (cut);
of Constantine, 164 (cut);
of Gregory the Great, 225 (cut);
of Hercules, 69;
of Hippolytus, 141, 143 (cut);
of Isis, 55;
of Jupiter, 56;
of Marcia Furnilla, 267;
of S. Paul, 26;
of S. Peter, 141, 142 (cut);
of Semo Sancus, 105 (cut);
the sphinx of Amasis, 94 (cut);
of Tiberius, 268;
of Vortumnus, 104.

Stephen III., Pope, 48.

Street-shrines in Rome, 33.

Streets (ancient): Alta Semita, 190, 191 (cut);
Clivus Suburanus, 35;
Vicus Apollinis, 82;
Vicus Sobrius, 35.
See also _Via_.

Streets (modern): Boc