The marble columns supporting the pointed arches of the roof, four in number on each side, do not consist of independent shafts banded together, as in the Round, but form solid pillars which possess vast elegance and beauty. Attached to the walls of the church, in a line with these pillars, are a series of small clustered columns, composed of three slender shafts, the central one being of Purbeck marble, and the others of Caen stone; they are bound together by a band at their centres and their bases, which are of Purbeck marble, rest on a stone seat or plinth, which extends the whole length of the body of the church. These clustered columns, which are placed parallel to the large central pillars, are surmounted by foliated capitals, from whence spring the groined ribs which traverse the vaulted ceiling of the roof. The side walls are thus divided into five compartments on either side, which are each filled up with a triple lancet-headed window, of a graceful form, and richly ornamented. It is composed of three long narrow openings surmounted by pointed arches, the central arch rising above the lateral ones. The mouldings of the arches rest upon four slender marble columns which run up in front of the stone mullions of the windows, and impart to them great elegance and beauty. The great number of these windows, and the small intervening spaces of blank wall between them, give a vast lightness and airiness to the whole structure. Immediately beneath them is a small cornice or stringing course of Purbeck marble, which runs entirely round the body of the church, and supports the small marble columns which adorn the windows. The roof is composed of a series of pointed arches supported by groined ribs, which, diverging from the capitals of the columns, cross one another at the centre of the arch, and are ornamented at the point of intersection with richly-carved bosses. This roof is composed principally of chalk, and previous to the late restoration, had a plain and somewhat naked appearance, being covered with an uniform coat of humble whitewash. On the recent removal of this whitewash, extensive remains of an ancient painted ceiling were brought to light, and it was consequently determined to repaint the entire roof of the body of the church according to a design furnished by Mr. Willement.