wagon vault

We left it (Fig. 92) in the condition of a round wagon vault, intersected by another similar vault at right angles.

In front of the apses is a solea with a wagon vault, except in front of the small aisle apse, where it is quadripartite.

They return across the ends of the aisles, in each of which is an altar beneath a wagon vault, though there is no apse.

The central compartment has a wagon vault, the other two quadripartite vaults.

This ceiling is a pointed wagon vault, cut from two great blocks of marble, which meet in the centre.