At the western end, an oak screen, carved with Gothic tracery and the linen pattern, separates the aisle from the chapel of St. James. The two westernmost piers on the south side shew the clumsy way in which they were restored after the fall of the central tower. On the side of the third pier is a carved head supporting a bracket in Purbeck marble. The =Eastern Transept= is also the work of St. Hugh. There have been alterations made at a later period; these will be pointed out. The four semi-circular chapels on the east side were considered by Professor Willis to have been finished after the death of St. Hugh, though no doubt forming part of the original design. There hardly appears to be any necessity to assign them to a later date than the rest of the transept. The northern arm is in two bays, with the two semi-circular chapels on its eastern side, and a chamber, misnamed the "Dean's Chapel," to the west. [Illustration: THE EAST TRANSEPT, LOOKING NORTH. _S. B. Bolas & Co., Photo._] The end bay of the transept is cut off by an arch, carrying a wall above which reaches to the vault. The wall is pierced by openings similar to those of the triforium and clerestory, but they are unglazed, and through them we can see the windows of the outer wall. The compartment which this end bay thus forms has a stone vault at the height of the lower arch, leaving the part above open to the roof. Thus it happens that, looking from below through the upper openings, we are able to see right through to the massive wooden beams which support the outer roof. This is the only part of the interior from which the roof can be seen. It is interesting to notice the rows of windows in the north wall, culminating in the narrow lancets which fill the gable. The triforium is very similar to that of the choir. Each bay contains two arches, themselves divided into two sub-arches. The tympana are pierced, as before, with trefoils and quatrefoils, except in the case of the first bay on the eastern side, where they are plain. This is an interesting point, and is considered to mark the earliest existing part of St. Hugh's work. The clerestory is formed of narrow single lancets. The double arcading of St. Hugh is seen to the left of the doorway, in the north wall, which leads to the cloisters. Two columns of extraordinary design occur in this transept. One is at the south-east corner of the "Dean's Chapel," and the other is in a corresponding position on the other side of the church. Each consists of an octagonal pier in the centre, with crockets running up four of its sides; these are protected by four circular shafts of Purbeck marble, which stand before them and alternate with hexagonal fluted shafts. The crockets form "a remarkable and uncommon feature, which seems to have been in use for a very few years; it occurs also in the west front of Wells Cathedral, the work of Bishop Joceline, a few years after this at Lincoln" (_Rickman_). The original purpose of the