We now visit the north transept and find ourselves in the earliest portion of the Cathedral, built by Bishop Walkelin in the old Norman style. The windows were inserted in the Decorated period, and the ceiling belongs to the last century. The transepts have aisles on the east and west sides and also at each end, over which is a gallery. This is not common in England. At St. Alban's there is a similar arrangement, and in several Normandy churches. The Norman work of the transepts is of two periods. The earlier part by Walkelin (1070-1098) is distinguished by the smaller piers and plain groined vaulting; the later (1107) by the ribbed vaulting and larger piers. When we visit Ely Cathedral we shall notice the similarity of design, the transepts of that building having been erected by Simeon, Walkelin's brother. Under the organ-loft is the Chapel of the Holy Sepulchre. Notice the curious mural paintings representing the Passion of our Lord which date from the thirteenth century, and the Decorated canopies built against the Norman piers. We now enter the north aisle of the presbytery and proceed to the extreme eastern portion of the Cathedral. Here seven chantries and chapels are seen which record the memory of illustrious prelates. "How much power and ambition under half-a-dozen stones! I own I grow to look on tombs as lasting mansions, instead of observing them for curious pieces of architecture," wrote Walpole. Almost all the east end was built by Bishop Godfrey de Lucy (1189-1204) at the beginning of the Early English period and is of exquisite design. The north chapel is called that of the Guardian Angels, and is so named from figures of angels in the vaulting. There is a bronze figure of the Earl of Portland here, the treasurer of Charles I. Notice the figure holding a heart. It represents Bishop Ethelmar, half-brother of Henry III., who died in Paris but directed that his heart should be conveyed to this Cathedral. The Lady Chapel has work of divers periods--north and south walls Early English (De Lucy), east wall and window with small eastern parts of north and south walls Perpendicular (Prior Hunton, 1470-1498, and Prior Silkstede, 1498-1524). The rebuses of these two priors on the vault are curious: T. _Hun_ and a ton (Thomas Hunton), and 1 and _Por_ for Prior; T. _Silk_ and a horse (Thomas Silkstede). Mural paintings by the latter prior representing the legends of the Virgin adorn the walls. The panelling is the work of Bishop Fox.