[219] An example of the heavy ribs used in early work may be seen at Morienval, Fig. 77. [220] These and the following churches are chosen at random merely for the purposes of comparison. [221] For example in the cathedral of Albi, where the nave is sixty feet in width, and in that of Gerona (Spain), where it is over seventy. [222] See pp. 49 and 70. [223] See Bond, p. 336. [224] See Bond, p. 335. [225] See Bond, p. 336. [226] As a matter of fact these in their turn help to support the ridge rib. [227] See Street, p. 78 for a drawing (from Wilde) of this vault before its restoration. [228] See p. 93 for examples. [229] So far as the writer knows there are no examples of the simple transverse ridge rib in England, where one would naturally expect to find it used. [230] Moreover the tiercerons at Worcester would seem to have been an afterthought. See Moore, Mediaeval Church Architecture of England, p. 175. [231] Illustrated in Bond, p. 327. [232] Illustrated in Bond, p. 327. See also Lichfield’s Cath. nave for similar transverse rib. [233] Not without their influence, however, as a number of late churches could be cited in which there is no true transverse rib, as for example the minster at Berne (Switzerland), (illustrated in Michel, III, p. 52, Fig. 31). [234] See Bond, p. 333. [235] Dehio and von Bezold, II, p. 234, Fig. 1. [236] A larger number of tiercerons is frequently found but not in vaults without liernes, except in very rare instances such as Oxford Schools Tower, where there are three pairs of tiercerons in each severy. Plan in Bond, p. 324-8. [237] Bond, p. 340. [238] Illustrated in Bond, p. 329. [239] Illustrated in Bond, p. 331. [240] Michel, III, p. 27, Fig. 17. [241] Illustrated in Bond, p. 329. [242] Illustrated in Bond, p. 330. [243] See also illustration in Bond, p. 332. [244] See illustration of Gloucester choir in Bond, p. 334. [245] See illustration in Bond, opp. p. 132. [246] See illustration of Tewkesbury nave, Wells choir (Bond, p. 332) and Gloucester choir (Bond, p. 334). [247] Illustrated in Bond, p. 330. [248] Illustrated in Bond, p. 332. [249] Illustrated in Bond, p. 332. [250] Illustrated in Bond, p. 333. [251] Illustrated in Bond, p. 333. [252] See also Cambridge, King’s College chapel, illustrated in Bond, p. 333. [253] See also Oxford, Christ Church staircase, illustrated in Bond, p. 348. [254] Illustrated in Willis, p. 50. [255] Illustrated in Bond, p. 333. [256] The vaults are modern but the church was planned to have this type. [257] Illustrated in Bond, opp. p. 348, also Willis, pl. III, opp. p. 54. [258] Illustrated in Bond, p. 297. See also Oxford, Divinity School, illustrated in Bond, p. 331 and Henry VII’s Chapel, illustrated in Bond, opp. p. 348. [259] For an extended discussion of English vaulting see Bond, English Church Architecture, Vol. I, Chap. V, pp. 279-384.