We will now turn to the south and pass eastward under the curtain which hangs beneath the western arch of the south aisle of the presbytery. On the south side we see, as we enter, a fourteenth-century holy water stoup, and further on, under a window, a wide round-headed archway which formerly led into a chapel now demolished, which once was dedicated to our Lady, before the larger chapel at the east end was built. In the next bay is a blocked Norman window from which the plaster has been scraped to show the character of the wall, built of Roman tiles; the quadripartite vaulting is of plaster with lines painted red to make it appear like stone. Opposite is a large oak money-chest, and above it on the wall is the figure of a mendicant (see p. 63), carved in wood by a verger in the eighteenth century, hat in hand, as if asking the passer-by to put a coin in the poor-box below. In the south wall is a doorway which led into the treasury. The next bay is largely rebuilt; on the south side is a door and opposite is the back of John of Wheathampstead's chantry. From this we pass into the south aisle of the Saint's Chapel. [Illustration: SOUTH AISLE OF PRESBYTERY.] First we see the doorway on the north side, under which are steps leading up into the chapel, and further on we come to a trellis-work of iron through which we can look across the space once occupied by the monument of "Good" Duke Humphrey of Gloucester into the Saint's Chapel. This grill is older (about 1275) than the rich canopy over the duke's grave, and was doubtless erected to allow of a view being obtained from this aisle of the martyr's shrine. There are a number of figures of kings in the canopied niches over the grave, but it is not possible to identify them. Opposite are some remains of a stone screen of the Perpendicular period; it probably divided the aisle from some external chapel. After the chapel perished the wall was built up; but during the restoration this arcading was discovered. Through an oak screen, Lord Grimthorpe's work, we pass into the #retro-choir.# This, as we have before seen, was sadly mutilated after the Reformation, when the public path was made through this part of the building and the Lady Chapel turned into a grammar school; hence we shall find more modern work here than in any other equal area of the church. The part east of the passage was for long used as a covered playground for the boys and suffered much in consequence. It was originally built at the end of the thirteenth century. The arcading round these walls is new, much of it carved under the direction of Lord Grimthorpe by Mr. John Baker. The carving is of a naturalistic character, the vegetable forms being copied direct from the plants and trees of the neighbourhood. The oak ceiling of the south side and the flat ceiling of the centre are by Lord Grimthorpe; that on the north side by Sir Gilbert Scott. The shrine of St. Amphibalus once stood