#The North Aisle of Nave#, the Norman windows of which were entirely replaced by Decorated ones, is covered by plain quadri-partite vaults. In the triforium over, as previously noted in description of exterior, the side walls were raised, the original Norman windows blocked up and Perpendicular ones placed over, the roof being at the same time raised on the outside to the necessary height, and made of a shallower pitch; this is clearly noticeable from the triforium walks. In the easternmost bays, two windows were raised still more to gain additional light for the choir. In the seventh bay from the west end occurs the door once leading to the _green yard_. [Illustration: The North Aisle of Nave, looking West.] #The South Aisle of Nave# corresponds with the north, and is covered with a plain quadri-partite vault, with the exception of the seventh and eighth bays from the west; these were converted by Bishop Nykke into a chapel enclosed by screens, and are marked on the plan as E.E. The Norman vaults were here removed and the late Perpendicular ones constructed in their stead; the windows appear to be of still later date, but are supposed to have been, and most probably were, inserted at this period. #Monuments in Nave.#--The nave suffered severely at the hands of the Puritans, who destroyed many of the early tombs and effigies. Especially noticeable is the lack of brasses; all these have disappeared, with the exception only of one in the Jesus Chapel. Another singularity is that the burial-place of most of the bishops who are known to have been interred in the cathedral is quite uncertain. The best of them seem to have been content with a plain slab and inscribed brass; only Nykke, of infamous memory, left so gorgeous a chapel behind to perpetuate it.