The #South Aisle# of the nave was originally of Norman work, similar in style to that of the north aisle; but was remodelled and rebuilt to such an extent by Abbot Thokey, in or about the year 1318, that the piers and portions of the south wall are all that remain of the Norman work. He desired probably to preserve the Norman vaulting (similar to that yet existing in the north aisle of the nave), and as the south wall had inclined outwards, and the whole fabric of the aisle was from this cause in danger, he erected large buttresses to prevent further settlement; but failing in this design, he was compelled to take down the Norman vaulting, and he then substituted vaulting of the same style of architecture as the buttresses he had just erected. Such great care could scarcely have been taken in those days to preserve the Norman piers only; the first object must have been to retain, for economical reasons, as much as could possibly be retained of the old aisle. It may be remarked also that the Norman piers incline in some cases as much as one foot towards the south, and the buttresses of Abbot Thokey also incline in the same direction from three to four inches in their whole height. The Abbot's buttresses, therefore, must have gone out of the perpendicular after their first erection, or else the present vaulting would show settlements, which it certainly does not. The tracery of the windows is unusual in design, and is similar to that in a window of the chapel at Merton College, Oxford. Ball-flower mouldings adorn the aisle windows inside and out between the south door and the steps leading up to the south transept, and the same ornament is repeated in the vaulting of three of the bays and in the triforium of the choir.[2] Abbot Morwent's work at the west end of this aisle is similar to that in the north aisle. The #Monuments# in this aisle are not numerous, but are of modern historic interest. Near the west end of the nave is a statue by Silvier to Dr Jenner, who introduced the practice of vaccination. Under the west window of this aisle is an interesting wall-tablet in a canopy to John Jones, who was registrar to eight bishops of the diocese. The background is formed of files of documents, with their seals and dates exposed to view. There is taste in the colouring, and the design is effective. John Jones was M.P. for Gloucester at the exciting time of the Gunpowder Plot. He is said to have had the monument put up in his lifetime, and to have died soon after it was completed. After passing the south door, a marble sarcophagus, with a bust upon it, will be noticed. This is to the memory of Sir G. Onesiphorus Paul, Baronet, (by Sievier). His name is well-known in connection with prison reforms. Close by is a wall tablet to the widow of Sir Wm. Strachan (1770). The carving, which is very delicate and beautiful, is by Thomas Ricketts, a Gloucester sculptor of considerable skill.