Its window indeed is of early Norman type: yet its wall seems of softer stone than the rest of the crypt,[107] and the string which runs along the east wall of the latter and round the responds of the cross-arch is there broken off: moreover, the cross-arch itself is clearly not of the same date or construction with the two ribs of the apse-roof, which ribs may possibly be of the same date as the groin-ribs; and lastly, it will be remembered that the shafts on the exterior had something of the appearance of Archbishop Roger's work. The floor of the apse is raised on two steps, but there is no trace of an altar. It will be noticed that at the south-east corner there is no apsidal chamber to correspond to that in the storey above. There is, however, an unsavoury hole from which have been extracted a number of skulls. Indeed, this crypt formerly contained huge piles of bones, which had probably been brought here by the sixteenth century builders from the foundations of their new nave-aisles,[108] and which were removed in 1865 to a pit in the graveyard. Among the stone relics which have found a resting-place here, the most interesting are a sarcophagus, the head of a cross of Saxon character, and a group of coffin-lids near the north wall. Most of these last are perhaps of the thirteenth century.[109] At the west end of the crypt is preserved Blore's reredos. =The Chapter-house= is 22 feet wide from wall to wall and 35 feet long, but it was evidently once open to the vestry, and the dividing wall, which with its bench-table is of limestone, was erected in the Decorated or in the Perpendicular period. In both rooms, as also in the storey above, the original floor was perhaps of stone or tiles, but if so, it has been covered or superseded by wooden planking.