Stephen’s. Both churches had naves of eight bays in length, in addition to which both had a western façade, with two flanking towers. The transepts of both churches were of two unequal bays, and the outer bay of each had a gallery all across it, supported by a massive pillar (as at Winchester); in each there was in both transepts an apsidal chapel repeated on the triforium level; and though both have lost their original choirs, the probability is that both were of two bays long, with the addition of a simple apse. Professor Willis has shown that their very dimensions were nearly identical. It has been discovered that at St. Stephen’s the western towers were a subsequent addition, though so early that little difference can be observed in their details. I judge from this that the towers at Canterbury were a deviation from the design of St. Stephen’s, which was at once rectified by adding them to the prototypic building. The piers of St. Stephen’s are oblong masses, divided at each end into groups of three large shafts. To these are added, on the side facing the nave, shafts, alternately single and triple, which ran up to the roof. The triforium storey is almost a repetition, to a less height, of the main arcade; though, where it passes the western towers, it is divided into two sub-arches by a single shaft. Mr. Parker, whose excellent paper on the subject will be found among the Transactions of the Institute of British Architects, seems to think that the triforium floor was of timber, and the aisle unvaulted. Professor Willis was under the impression that it had had no floor, but that the two storeys were united, as is now the case at Rochester. This, I think, seems disproved by Mr. Parker’s paper, and by M. Bouet’s drawings, which show a doorway opening into the triforium storey. This storey is at present vaulted above with a half-barrel vault. This Mr. Parker thinks an addition; but M. Bouet shows a remnant of it embedded in the east wall of the transept, where the old choir aisle has been removed, which seems to suggest its being original. The greatest alteration which the older portions of the church have undergone is the addition of vaulting to the nave and the entire transformation of the design of the clerestory in a later Norman style, which, to a casual observer, seems to work in so well with the older parts as to appear original. M. Bouet and Mr. Parker have found the remnants of the original arcade,--which were uniform in height and incompatible with vaulting,--both in the nave and transepts, proving that vaulting was not contemplated in the first erection.