Perhaps it is not quite fair to the later architects to attribute all the excellence of the work to the earlier builders, for the graceful columns of the nave's eleven bays which rise unbroken to where the roof-groining springs from their capitals are made by Wykeham to fulfil a new duty which entirely alters their whole aspect. The general effect has been said to be as if a Norman architect had expressed himself in the more refined idiom of the early fifteenth century. Yet the work of Edingdon and Wykeham was ruthless in its way. The original Norman nave of Walkelin consisted of the normal three storeys, of equal height in this case--the main arches, triforium, and clerestory. At the present day the main arches are fully half as high again as they were in the Norman cathedral, while the base of the clerestory has been brought down to meet them, so that the triforium appears to have vanished or rather to exist merely as a balcony over each arch. As a matter of fact, however, it was the old clerestory which was entirely removed and replaced by the present upper storey. On p. 35 we see on the one hand typical Norman work, of the character still existing at Romsey Abbey and Christchurch Priory--to mention only the two large churches nearest to Winchester. During the conversion of the nave the bases and capitals of the grouped shafts of the main arches were removed, together with all the masonry above them. This is not mere conjecture, for the Norman shafts and capitals which still remain on the north side of the nave, in the second bay from the crossing, where they were covered by the ancient rood-screen, show that the pier-arches of the nave sprang from the same height as those of the transepts; the Norman main arch of the triforium still exists in every compartment over the vault of the side aisles to prove that the triforium of the nave was practically on the same level as that of the transepts, and the tops of the Norman shafts yet remaining above the nave-vaulting are additional evidence that the nave was to all intents and purposes uniform with the transepts in its general arrangement. In the south aisle, moreover, there is to be seen the lower extremity of a Norman shaft, once covered by some votive altar or shrine which was removed during the destructive period of the Reformation. "It may be readily noted," says the writer of a recent article on Winchester Cathedral, "how the new ashlar was brought down to the level of this vanished altar, and how Wykeham's vaulting-shaft has been made to end in foliation where it once rose in receipt of prayers and wax-candles vowed in return for mercies vouchsafed." In the seven westerly piers of the south aisle, the Norman stonework has merely received new mouldings; while flat Norman buttresses can be seen outside between the clerestory windows, also on the south side.