there was a planned pause in construction. By 1140 the nave had been completed together with the western transepts and west tower up to triforium level, in the fairly plain early Romanesque style of the earlier work. Another pause now occurred, for over 30 years, and when it resumed, the new mason found ways to integrate the earlier architectural elements with the new ideas and richer decorations of early Gothic. The West Tower The half-built west tower and upper parts of the two western transepts were completed under Bishop Geoffrey Ridel (1174–89), to create an exuberant west front, richly decorated with intersecting arches and complex mouldings. The new architectural details were used systematically to the higher storeys of the tower and transepts. Rows of trefoil heads and use of pointed instead of semicircular arches, results in a west front with a high level of orderly uniformity. Originally the west front had transepts running symmetrically either side of the west tower. Stonework details on the tower show that an octagonal tower was part of the original design, although the current western octagonal tower was installed in 1400. Numerous attempts were made, during all phases of its construction to correct problems from subsidence in areas of soft ground at the western end of the cathedral. In 1405–1407, to cope with the extra weight from the octagonal tower, four new arches were added at the west crossing to strengthen the tower. The extra weight of these works may have added to the problem, as at the end of the fifteenth century the north-west transept collapsed. A great sloping mass of masonry was built to buttress the remaining walls, which remain in their broken-off state on the north side of the tower. Galilee Porch The Galilee Porch is now the principal entrance into the cathedral for visitors. Its original liturgical functions are unclear, but its location at the west end meant it may have been used as a chapel for penitents, a place where liturgical processions could gather, or somewhere the monks could hold business meetings with women, who were not permitted into the abbey. It also has a structural role in buttressing the west tower. The walls stretch over two storeys, but the upper storey now has no roof, it having been removed early in the nineteenth century. Its construction dating is also uncertain. Records suggest it was initiated by Bishop Eustace (1197–1215),