At the west end is a vestibule, extending across the whole building, and occupying the space beneath the organ gallery and staircase. This is separated from the church by a fine stone screen, consisting of a large pointed arch, flanked by square open buttresses, and ornamented above with a range of upright divisions, finished with a blank cornice; in the centre is a bow, or projection in the corbel style, in the front of which is a dial. The doorway is formed of carved oak, representing tracery work and mullions, the upper part of the panelling being pierced and glazed. Above this screen is the organ, in a carved oak case, the design of which is an assemblage of three towers, with pinnacles at the angles, and united by flying buttresses, the wood work ornamented with upright arched panels. * * * * * On each side of the church are seven arches, resting upon six octangular columns, to each of which four small pillars are attached, an additional one being placed upon the capitals of those which are situated towards the body of the church, and carried up towards the vaulting. At each of the extreme ends of the arcade a semi column is attached to the walls, to complete the number necessary for sustaining the arches. The main pillars and arches are ornamented with a simple ogee moulding. The aisles are occupied by galleries that hide the lower divisions of the windows, which are only seen externally, no light being admitted below the galleries through the outer walls. Between the clerestery windows and the arcades below is the metzonine story, fronted by four cinque-foil headed arches, and finished with a cornice of roses in enriched quatre foils, designed as in imitation of the ancient trifolium. * * * * *