Firstly the walls of the vestibule should be noticed: the lower portions of the west wall are parts of the old Norman apsidal chapel, and are pierced by the opening for the door and by two perpendicular windows; and the west end of the chapel is contracted in breadth, as it is also in height, so as to minimise the loss of light to the great window of the choir. The shape of the chapel will be easily understood from the plan (p. 61).
The lierne vaulting of the vestibule is very delicate (the ribs, it will be noted, are run differently in the four quarters of the roof), and the pendants form a cross. These latter, at the present time, look new, but they have only been freed from the whitewash that was thick upon them. One pendant has been renewed at the end. Over the vestibule is the small chapel which is entered from the Whispering Gallery (vide page 77).
The open tracery of the west end over the supporting arch is particularly graceful, especially the way in which the open lights are arranged in the central portion. The Lady Chapel is 91 feet 6 inches long, 25 feet 6 inches high, and 46 feet 6 inches high, and consists of four compartments or bays, which, as the wall of the chapel is so low, are chiefly composed of fine tracery and glass. All the wall below the windows is arcaded with foiled arches, with quatrefoils above them. The wall between the windows is panelled with delicate tracery like that in the windows, and in its three chief tiers contains brackets for figures, with richly-carved canopies overhead. Many of these canopies (like the walls) show traces of colour.
Vaulting shafts of great beauty support one of the grandest Perpendicular roofs that has ever been made. Each boss in the roof is worth minute inspection, and since the restoration (1896) it is possible to see the bosses in practically the same condition as they were when they left the masons' hands in the fifteenth century. With three exceptions they are all representations of foliage, and it would be a hard task to arrange them in order of merit.
It has been said above that the chapel is cruciform. The arms of the cross are represented by the two side chapels, like diminutive transepts on the north and south sides, with oratories above them, to which access is given by small staircases in the angles of the wall. Both these side chapels contain some exquisite fan-tracery vaulting, which is supported upon flying arches, fashioned in imitation of the graceful flying arches in the choir.
On the north side the chapel contains a full-length effigy of Bishop Goldsborough (who died in 1604) robed in his white rochet, black chimero, with lawn sleeves, scarf, ruff, and skull-cap.
The east window in this chapel is in memory of Lieut. Arthur John Lawford (1885), and is dedicated to St. Martin.
The chapel above has a vaulted roof with bosses of foliage, and there are small portions of ancient glass.