Dome, 201, 220, 226; of S. Sophia, 26, 29, 35, 42, 123, 142, 150, 157, 159, 169, 209, 210, 219; mosaics in, 274, 278, 286 Domninus, porticoes of, 182 Doors of church, 40, 57, 58, 138, 143, 147, 168, 193, 216, 267; Holy, 79, 94, 96 Doorkeepers, 91 Door veils, 88 Drill, use of, in carving, 263 Du Cange, 7, 34, 44, 53, 180, 186, 190; editions of, 66, 67; plan by, 78 Ducas (15th c.), 126 E Earthquakes, 21, 22, 122, 212, 228, 265 Eastern chapels, 78 Egypt, 4, 177, 200, 226, 228 Elektron, 70, 138, 272 Embolos of Milion, 180, 182 Enamel, 68, 70, 272 Encaenia, 15, 21, 34, 36, 141 Endute, 71, 140 Ephesus, 32, 130, 191, 202; building centre, 98; John of (6th c.), 98 Equestrian statues, 149, 193 Escomboli, 125 Etoimasia, 286 Euchologium, 62, 92, 194 Eudoxia, 16; statue of, 12, 13, 179 Eudoxius, 15 Eugenius, gate of, 10 Eusebius (4th c.), 14, 74, 190 Eutychius, 29, 132, 141 Exedras, of S. Sophia, 22, 25, 36, 151, 164, 168, 219, 234, 259; at S. Sergius, 205 Exonarthex, 122, 148, 150, 162, 185, 188, 193, 215 Exterior of S. Sophia, 215, 219; cased with marble, 197 Evagrius (6th c.), 29, 32, 33 Ezra, 204, 228 F Fabri, Felix, 83, 246 Fall of city, 125, 126, 147, 175, 179 Fanio, portico of, 12 Figure scheme in mosaics, 280, 283 Fillet, notched, 170, 260, 292 Flabella, 91, 104, 285 Fonts, 19, 20, 81 Fortunatus, 81 Forum of Constantine, 3, 5, 6, 9, 12, 13, 14, 179, 182, 193; Tauri, 178 Fossati, 84, 120, 148, 179, 185, 287 Foundations, 132 Fountains, 177, 185, 188 G Galata, 5, 11 Galla Placidia, 74, 282 Galleries to S. Sophia, 212, 217 Gammidae, 71, 88, 267 Ganosis, 246 Garconostasion, 188 Garofalo, 236 Germanus (8th c.), patriarch, 85, 100 Giallo antico, 172, 239 Gilding, 272 Glass, 46, 169, 290; enamels, 272; mosaic, 172, 273 Glycas (12th c.), 21, 79, 123, 129, 145 Goar (17th c.), 69, 92, 122, 192, 194 Gold, 33, 46, 48, 49, 60, 70, 199, 293 Golden Gate, 135; Horn, 1, 5, 6, 10, 11, 90 Gregory, S., of Armenia, 276; S., of Nazianzene, 209; S., of Nyssa, 206, 207; Thaumaturgus, 83, 102, 106, 131, 276, 287 Grelot, 66, 78, 84, 120, 127, 185, 188, 190, 193, 215, 285, 291 Gruter, 84, 190 Gyllius, 12, 66, 127, 146, 175, 177, 179, 185, 193, 248 Gynaeceum, 27, 44, 65, 87, 91, 131, 140, 147, 161, 164, 242; accesses to, 152, 154, 157; domes, 222; doors, 210; pavement, 172, 215; windows, 168, 171 Gypsoplastes, 206 Gypsum, use of, 226 H Habakkuk in mosaic, 277 Haifa sand, 241 Hangings, 86 Helena, 14, 97, 99 Hemicycle, 19, 22, 67, 205, 219 Hemisphere, 30, 32, 41, 123 Heraclius (610), 91, 97 Hierapolis marble, 55, 57, 60, 238 Hippodrome, 2, 3, 4, 10, 12, 13, 17, 121, 174, 175, 186, 193