We will begin our survey, as usual, with the _West Front_, which has been much altered, but remains a very imposing structure. It will be noticed that the north side differs from the south, and either was never completed or fell into decay. They both belong to the Late Norman or Transitional period. The _Galilee Porch_ is a perfect gem of exquisite architecture. It has been pronounced "the most gorgeous porch of this style in existence, combining the most elegant general forms with the richest detail." The style is Early English, and is the work of Bishop Eustace (1198-1215), who was ordered by the Pope to excommunicate King John, and had to fly from England in consequence. It will be seen that this porch is one of the earliest examples of good Early English work, and for its excellence and perfection rivals the choir at Lincoln. There is a profusion of dog-tooth ornament. The doorways are most graceful. The main arch is divided into two cinquefoiled sub-arches, separated by a slender shaft, and in the head there is very beautiful tracery. The walls are covered with arcading, of lancet-shaped arches cinquefoiled. In the interior there is a beautiful double arcading, similar to that which we have seen at Lincoln. [Illustration ELY CATHEDRAL FROM SOUTH-EAST] The _West Tower_ is earlier than the porch, and its lower stages are Transition Norman. The upper stages are Early English, except the highest octagonal stage, which is Decorated. Bishops Riddell and Northwold were the builders of earlier stages, and the octagonal summit was built during the bishopric of John Fordham (1388-1425). This magnificent tower has been a source of continual anxiety to the monks and masons of Ely, on account of the great weight of the superstructure, and continual repairs and strengthening operations have been needed. [Illustration THE OCTAGON AND LANTERN FROM NORTH-WEST] The _North Side_ of the nave preserves its Norman character, but Perpendicular windows with ogee arches have been inserted. Formerly the Church of St. Cross stood on this side, erected by Walsingham, but it fell into decay and was pulled down in 1566. We can still see the walled-up door in the north wall of the Cathedral which led to this parish church. Norman mouldings (such as the billet) may be seen round the arches of the windows in the clerestory. The curious and beautiful _Octagon_ is a striking feature of Ely. It consists of an eight-sided tower crowned with an octagonal lantern, the dimensions of which are much smaller than those of the tower which supports it. Decorated windows of large size occupy the sides facing north-west, north-east, south-west and south-east, which are narrower than the other sides. Turrets crowned with pinnacles stand at each corner of the lower tower, and quadrangular turrets at each corner of the lantern, which is made of wood. The whole has been recently restored with the greatest possible success.