[55] See Dehio and von Bezold, p. 260.
[56] Ruprich-Robert, p. 8, Fig. 45, and Reber, Fig. 235.
[57] Lasteyrie, p. 455, Fig. 473.
[58] Lasteyrie, p. 456, Fig. 474, also Saint Jouin-de-Marnes (Deux-Sèvres), Baudot and Perrault-Dabot, II, pl. 32, and Nouaille (Vienne), Ch., Baudot and Perrault-Dabot, II, pl. 37.
[59] For example, the aisle vaults seldom carry the tile of the roofs outside of Provence and Auvergne.
[60] This arrangement is general in the school and may be understood by referring to the illustration of Melle, Saint Pierre, Lasteyrie, p. 455, Fig. 473. A number of churches which are exceptions to this rule have already been noted under Provence (see pp. 21, 22).
[61] See Lasteyrie, p. 454, Fig. 471.
[62] The three western bays of the church are early twelfth century and have transverse arches.
[63] Rivoira (Rivoira, I, p. 97) says that such arches were used beneath groined vaults as early as the eighth century in the palace of Theodoric at Ravenna, and gives as tenth century examples (p. 176) the aisles of Sant’ Eustorgio at Milan and the nave and aisles of S.S. Felice e Fortunato, at Vicenza, and as examples of the early eleventh century, the nave and aisles of San Babila, also at Milan.
[64] It is a question whether the transverse arches actually carried much or any of the weight of the vault. (See discussion of this point as regards crypts in Porter, Construction of Lombard and Gothic Vaults, pp. 17-18.) They did, however, strengthen the church by tying together the piers and walls besides saving centering as above stated.