75,115,137,141,164.scollop,seecusp.semi-dome,18,27,28,38,42,73,79,111,112,115,139;fluted,25,118,139.serdâb,25,28,35,37,82.spandrel,6,12,24,27,34,131,133.spear-shaped motive,27,140.spiral motive,133.squinch arch,18,23,27,38,50,51,52,53,73,79,96,97,115,140,159;fluted,18.stair,7,13,20,21,22,23,28,29,31,33,34,35,36,37,40,46,82;on âtesgâh,91,92.staircase motive,127.stela,123,135.stoa,65,124,126.stone, dressed,65n.1,70,96,124,126,159;undressed masonry,6,24,28,44,69,76,78,84,96,113,116,117,160.stucco,12,16,17,18,23,24,26,34,52,86,115,124,125,134,140,164;oversailing bars,18,26,28,38,51,65,66,140.stupa,123.ṣuffah,146.symmetry,92.Ttabernacle in votive niches and tombs,127.ṭâqchah,28,35,51,52,76.ṭarmah,30,32,48,53,83,84,87,88,93,94,119,137,138.temple, Assyrian,92,93,94,124;Babylonian,92,93,94;fire,90,92,94;in antis,66;peripteral,65.tetrapylon,98.theatre, at Babylon,65;at Ephesus,125.tholos,128,129.torus,76.towers, à cheval,103,108;chamber,7,31;flanking,4,6,7,33,36,37,41,60,99-110,113,114,116,117,121,153,155;in Roman camp,99;polygonal,109;rounded and rectangular,103,107,108,109;tomb,41n.1.transept of mosque,152,155,158,159.trifoliate apse,117.tubes, decoration, value of,35,143;imply vault,143;in vault,14,19,22,30,31,33,35,36,76,143,144.UUkhaiḍir, absence of bath,166;central court,23,24-6,33,34,82,131;corridor,28, pp.20,23,24,25,29,33;courtA,16,19;courtB,23,30,31,32,33,82,83;courtC,23,30,32,33,82,83;courtD,23,33;courtE,23,24,30,33,83;courtF,29,33;courtG,23,30,32,33,82,83;courtH,23,30,32,33,82,83;east annex,34,35,82;great hall (7),12-14,19,24,81;ḥammâm,37;imperfect seclusion of ḥaram courts,166;inner walls and towers,33;mosque,16-19,150;name of,162;north annex,36,37,60;north gate tower,9,10,19,21;outer walls and gates,4-9,34,78,81;palace yard,5,14,20,32,33,34;passages 5 and 6 pp.10,14,16,34;room4, p.9;rooms29-42, pp.26-9,34,35,82;three-storied block,14-23,24,25,32,33,81,117.underground rooms,seeserdâb.‘uqûd,148.Vvault,8,9,10,13,14,15,16,19,20,21,22,23,26,27,28,29,30,31,32,33,34,35,36,37,39,41,42,48,49,50,51,72,73,75,82,83,95,112,115,143,144,150,155,160,165,166;at Hatra,70-3;construction,9,10,13,14,19,43,118;elliptical,see(vault) ovoid;flattened,22;groined,29,33,35,73,97,111,112,120,166;history of,68-70;intersection, avoided,9,17,29,53,73;introduction of changes plan,66;on columns,71-2,78;over inclined plane,7,16,46,97;oversailing,9,43,45,52,70,79,118;—imitation of,27;ovoid,31,52,71,76,165;pointed,45,50,165;pointed and oversailing,8,9,14,16,17;segmental,28;stilted,13,70;want of skill in Sasanian,97.Via Praetoria,98,103,121;Principalis,98,121;Quintana,98;Sagularis,98.Viceroys of ‘Irâq,168.vine motive,141.Wwall, buttressed,131;construction,6,38,45;outer, angle sliced off,39,54;unbroken face,126,131.ward,17.water basin in mosque,151.windows in drum of dome,79,111.wooden beams, in wall,6,12,13,95;under vault,9,17,18,21,32,34,36,37,39.Zziggurat,92.zigzag motive,17,27,38,40,116,140.ziyâdah,156.ẓullah,148,150.