Aabacus,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,seelîwân.Alexandrian influence,126,127,136.ancient road, Kûfah-Shethâthâ,2,43.antechamber,seeṭarmah.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.Bbâdiyah,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,seeḥammâm.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.Ccalotte,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,104,106,111n.casemate,22,107,108,109,121.castrum, Sasanian,105.cavetto,12.cella,94,126.centering,9,12,13,15,18,26,28,30,33nn.1and2,45,71,72,75,76,96,118,166.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,seearcade.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,7,106n.8,108.cusp,19,24,132,133,135,142,153.DDays 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’,seemosque.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.EEgyptian fortification,106;influence,127n.1;tombs,124.entablature,76,130;broken,127,128;Ionic,127.Ffaçade, 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,seeâteshgâh.flutes, triple,78,115.fluting,40,41,78,122,123,133.forum,72,98.fresco,112,140,142;Alexandrian,128n.3;of Boscoreale,125,127,128n.3.frieze, broken,128,133.funnel above arch,8,14n.1.Ggangway,seebalcony.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,