A
abacus, 12, 29;
boss on, 135.
acanthus, 141, n. 3.
acroterion, 129.
aedicula, 127, 129, 139.
aisle of mosque, 151, 152, 153, 154, 157, 158, 159.
aiwân, see lîwân.
Alexandrian influence, 126, 127, 136.
ancient road, Kûfah-Shethâthâ, 2, 43.
antechamber, see ṭarmah.
apadana, 63.
arcade, 16, 17, 19, 23, 28, 30, 32, 35, 49, 50, 71, 125, 153, 154, 155, 156, 159;
blind, 5, 6, 24, 25, 30, 32, 34.
arch, breaking into vault, 10, 20, 34;
construction, 6, 12, 15, 18, 24, 26, 29, 39, 42, 113, 166;
decoration, 122;
horse-shoed, 8, 24, 165, 166;
ogee, 40;
oversailing, 9, 15, 16, 26, 27, 33, 79, 115;
ovoid, 6, 26, 28, 32, 33, 34, 114;
pointed, 5, 6, 9, 16, 29, 32, 34, 112, 114, 118, 165;
relieving, 112, 113, 115, 118;
round, 30, 39, 41, 43, 76, 112, 113, 115, 118, 165;
segmental, 13;
set back from jambs, 14, 16, 20, 25, 26, 28, 33, 76, 79, 118, 166;
stilted, 8, 29, 114, 118;
transition from round or ovoid to pointed, 114, 165;
transverse, 8, 9, 17, 18, 26, 27, 28, 29, 30, 33, 36, 37, 51, 53, 72, 73, 83, 96, 97, 112, 115, 140.
architrave, 123, 131, 135, 136;
broken, 125, 128.
archivolt, 128, 129, 131, 133, 135.
armamentarium, 102, 103.
Assyro-Babylonian influence, 142, 164.
asymmetry, 51, 52, 79, 81, 93, 94;
in façade, 130, 131, 132.
âteshgâh, 91, 92.
attic, 127, 128, 129, 130.

B
bâdiyah, 55, 112, 119.
bait, 82, 83, 84, 86, 87, 88, 89, 104, 105, 106, 112, 113, 114, 116, 117, 118, 120.
balcony, 19, 23, 25, 133.
barracks, in Roman camp, 100, 102, 105.
base, absence of, 27, 42, 134;
bell-shaped, 156.
bastion, 107, 108.
bath, see ḥammâm.
battering-ram, 107.
brackets, horizontal, under domes, semi-domes, and calottes, 9, 10, 12, 15, 18, 24, 25, 27, 42, 73, 97, 111, 112, 113.
brick, 13, 24, 26, 28, 30, 39, 40, 41, 45, 54, 69, 70, 71, 79, 82, 84, 96, 113, 115, 117, 154, 155, 160;
enamelled, 122, 123, 140;
sun-dried, 38, 68, 75, 146, 147, 148, 153, 154, 160.
buttress, 4, 35, 71, 122.
buttressing vaults, 14, 26, 35, 74, 75, 95.
Byzantine influence, 115, 119, 143, 147.

C
calotte, 12, 13, 14, 15, 18, 19, 24, 26, 34, 38, 73, 133, 138;
construction, 13;
laid in rings, 24, 42;
stilted, 13.
capital, 25, 77;
absent, 6, 30, 138, 140;
bell-shaped, 156;
Corinthian, 135, 141;
impost-, of masonry and stucco, 12, 24, 25, 27, 29, 30, 42, 134, 135, 138, 140;
Ionic, 65;
wreathed acanthus, 153.
caravanserai type, 104, 106, 111 n.
casemate, 22, 107, 108, 109, 121.
castrum, Sasanian, 105.
cavetto, 12.
cella, 94, 126.
centering, 9, 12, 13, 15, 18, 26, 28, 30, 33 nn. 1 and 2, 45, 71, 72, 75, 76, 96, 118, 166.
centralization, 129, 131.
chapel replacing sacellum, 105.
chemin de ronde, 5, 6, 7, 8, 9, 21, 73, 106, 116.
chimney, 29, 32, 82.
Christian influence, 147, 148, 149.
cloister, see arcade.
closet, 83, 118.
coffering, 140.
colonnade, 84, 98, 123, 125.
column, absence of, in Babylonia and Assyria, 62, 77;
clustered, 24, 131, 135, 158;
double, 138;
dwarf, 127, 128, 130, 133;
engaged, 8, 12, 13, 16, 17, 19, 22, 23, 24, 25, 30, 32, 34, 36, 42, 46, 78, 122, 124, 125, 127, 128, 130, 131, 133, 136;
free-standing, 16, 17, 28, 29, 32, 35, 45, 47, 63, 80, 82, 123, 136, 148, 149, 150, 151, 152, 153, 158, 159, 160;
of wood, 148, 154, 157, 158, 160;
quarter-, in antis, 127, 128, 129, 138.
concrete, 28.
cornice, 25, 34, 70, 133;
broken, 128.
courts, isolation of, 31, 33, 48, 49, 83.
crémaillère, 106, 108, 109.
crenellated motive on archivolt, 14, 18, 140.
crenellation, 7, 18, 107, 121, 122, 123, 127, 128, 133, 134, 140, 143.
curtain wall, 7, 106 n. 8, 108.
cusp, 19, 24, 132, 133, 135, 142, 153.

D
Days of Ignorance, 56, 120, 168.
decoration, continuous niches, 123, 124, 125, 136;
continuous pattern, 123, 130, 131, 135, 143;
Coptic, 141, 143, 147, 164;
derived from wooden structure, 123;
geometric, 143;
imitative architecture, 65, 77, 123, 124, 125, 127-36;
in horizontal zones, 122, 124-36;
of structural character, 140.
dîwân, 19, 22.
djâmi’, see mosque.
dog-tooth, brick, 40, 79.
dome, 8, 10, 51, 53, 56, 70, 72, 73, 74, 75, 76, 78, 79, 92, 97, 112, 117, 118, 152;
fluted, 9, 13, 166;
on columns, 71, 72, 73, 74, 78;
ribbed, 7, 111;
thrust of, concentrated on angle piers, 78, 96.
dragon motive, 90, 143.
dungeon, 9.
Duru, 88.

E
Egyptian fortification, 106;
influence, 127 n. 1;
tombs, 124.
entablature, 76, 130;
broken, 127, 128;
Ionic, 127.

F
façade, Babylonian and Assyrian, 122, 123;
Graeco-Roman, 123;
Hellenistic, 24, 25, 51, 66, 88, 119, 122, 123, 124, 126-34;
of lîwân, 32, 34, 66, 78, 82, 95, 136, 137, 138;
of mosque court, 143, 144, 156, 158;
Roman, 124, 125;
single-arched, 138, 139;
towered, of khilâni, 62, 63, 75, 77, 78, 116;
triple-arched, 136, 137, 138.
fillet, 8, 10, 25, 27, 51, 52, 76, 79, 115, 123, 133.
fire altar, see âteshgâh.
flutes, triple, 78, 115.
fluting, 40, 41, 78, 122, 123, 133.
forum, 72, 98.
fresco, 112, 140, 142;
Alexandrian, 128 n. 3;
of Boscoreale, 125, 127, 128 n. 3.
frieze, broken, 128, 133.
funnel above arch, 8, 14 n. 1.

G
gangway, see balcony.
gate-house, Ukhaiḍir, 8, 81, 117.
gate, monumental, 4, 7, 9, 41, 49, 51, 52, 53, 81, 84, 86, 92, 96, 116, 122, 142.
gate towers, 7,