Abbots Simon Ripley and Birchenshaw did much to extend and enlarge the fabric. One of the most striking features of the Abbey (now the Cathedral) is the south transept, which is almost as large as the nave. The north transept is quite small as designed by Anselm, and the south transept was no doubt originally of the same size. When the monks desired to extend their church by the addition of more chapels they could not build on the north side as their other buildings occupied that space. On the south they found a parish church, which they removed, building another church for the parishioners on an adjoining site. They then built the large south transept, in which were four altars in their respective chapels, the vaulting of only one being erected at the time. After about forty years the parishioners asserted their rights, and assumed occupation of the transept, which thereafter became the Parish Church of St. Oswald until 1880, when it was once more thrown into the main building, and the partition which had separated it was removed. Here the clerestory windows, as in the nave, are Late Perpendicular, but the tracery of the other windows gives us a good specimen of Decorated work. The interior was restored eight years ago as a worthy memorial of the late Duke of Westminster. The central tower was probably erected by these later builders, but its plainness and severity were removed when it was refaced and ornamented under the direction of Sir Gilbert Scott. The same Abbots commenced the building of a south-western tower, which was not, however, carried higher than the nave roof, the corresponding position on the north side being occupied by the base of Anselm’s Norman tower, which was incorporated in the Abbot’s lodgings. Before dismissing the exterior of the church, it should be noted that the Early English builders extended the Norman church eastwards, and added apsidal chapels to the aisles. These were removed in Perpendicular times, and a further extension of the aisles was made; but that on the south was taken down by Sir Gilbert Scott, and the Early English portion was restored. [Illustration: Cloisters, Chester Cathedral. (_West Walk, showing one of the Monks’ Studies._) ] [Illustration: Norman Chamber, Chester Cathedral Cloisters. (_Secundo Aula of the Abbey._) ]