[346] For instance, at Vieil-Arcy, Ch. (Lefevre-Pontalis, pl. XLV), where there are no ribs beneath the half dome; and in the last five churches with two ribs listed in the preceding note. [347] Lasteyrie, p. 450, Fig. 470. [348] Rivoira, II, p. 38, Fig. 399. [349] Rivoira, II, pp. 39-40. [350] Rivoira, II, p. 93. [351] Moore, Mediaeval Church Architecture of England, p. 15, Fig. 11. [352] Forest-l’Abbaye (Somme) (plan in Enlart, I, p. 447, Fig. 211) furnishes one example of this and others are listed in Enlart, I, p. 447 and note 2 at the foot of that page. [353] There are occasionally to be found some late examples showing the survival of the half dome as an apse vault, but these are exceptional after cir. 1150, until the Renaissance period. [354] The word chevet is used here and elsewhere as referring to the ribbed vaulting developed and applied to the apse of the Gothic churches. [355] See p. 128, 129. [356] See p. 110. [357] Lefevre-Pontalis, pl. XXIX. [358] Lefevre-Pontalis, pl. LI. [359] At Laon the remaining bays of the chapel are groined and if their vaults are original, this presents one of the few examples of a church completely groined and especially of one with the combination of groined vault and ribbed chevet. [360] Moore, Mediaeval Church Architecture of England, pl. 1, opp. p. 19. Variously dated 1130-1150. [361] Illustrated in Moore, pp. 72 and 73, Figs. 26, 27. [362] See Moore, p. 130, et seq., and Porter, II, p. 80. [363] See also the apses of Saint Étienne at Caen, of Saint Martin-des-Champs at Paris and of Soissons cathedral transept. Other churches were probably originally designed without the flying-buttresses, among them Saint Remi at Reims. See Porter, II, p. 209 (from Lefevre-Pontalis). [364] This type of vault is later discussed. See p. 153. [365] The chevet vault is chosen for this discussion merely because the photographs are handy for reference. Similar vaults could, however, be found in all the other portions of the church. [366] For example, in Soissons transept. In certain other examples, the formeret does not follow the vault curve. See Paris, St. Martin-des-Champs (Fig. 65), Noyon transept, etc. [367] A vault of similar character may be noted in the name of Amiens and numerous other instances could be cited outside of the chevet vaults. [368] The eastern bay in this particular church was widened to give a broad opening into the Lady chapel. [369] It may be noted that La Madeleine also resembles St. Germer in having a groined triforium. [370] Vaults with just such doming were to be used side by side with those with higher window cells, as is later shown. [371] Unfortunately the vaults of Sens and Noyon have been rebuilt though apparently in the original manner, while those of Senlis, which would have been of much value, have been reconstructed in a later style.