From each transept projected eastward a two-storied apse (cf. Gloucester), the arches into which remain, and also the very noble arcade which opened into the upper chapel of the apse. It is noteworthy that the aisles are vaulted, as at Kirkstall, in oblong compartments—another mark of late date. The square broach spires of the west front—which, as well as the conical roof of the chapter-house, were restored by Mr. Christian on the authority of old prints—give the church quite a Rhenish appearance. The two big west windows of the towers are modern shams; originally these stages of the towers were, no doubt, solid. The north-west tower has a pointed arcade, and is therefore a little later than its neighbour, which has an intersecting arcade of semicircular arches. Originally the façade was just such a one as that which remains in St. Stephen’s, Caen. A magnificent string-course of zigzag ornament runs along the nave and round the transepts. In places it has been taken out, reinserted in a different place or copied, when the Perpendicular windows were inserted in the aisle of the nave. In the south transept it takes the unusual form of a segmental arch over the Archbishop’s doorway. The great emphasis given to the horizontal lines of the Norman building is as remarkable here as at Salisbury. There are good examples of the “nebule” corbel-table with a later parapet, and of Norman pinnacles; one of these, over the porch, is hollow, and served as a chimney for the sacristan or sexton, who, it was enacted, “should lie within the church, to be at hand to ring the bells at the right time.” The gables of the transept have very effective zigzag, with interesting differences of treatment; the pinnacles of the transepts seem to have been removed at some time or other to the central tower, for which they are too small. There is a fine view of the whole exterior from the fields and gardens to the south-east. [Illustration: NORTH PORCH.]