open from the transepts into the aisles of the presbytery; the central pair contained altars, as at Irthlingborough; while the extreme northern one opens into a large chapel, over which is the chapter-house and other buildings. At Witney, a large chapel equally distinct did occupy a similar position on the south side; but I do not remember if there are there any arrangements for smaller chapels, or altars.
As I before said, these chapels are not always to be accurately distinguished from choir-aisles. At Bristol Cathedral the chapels are still distinctly perceived to be attached to the transept; but those on the north side of Oxford Cathedral might as well be described (in their present state) as additional aisles to the eastern limb. Where churches are less regularly designed, the difficulty is greater. Thus, at Crewkerne, Somerset, the addition E is strictly a north aisle to the choir, though balanced by no southern one; but that at F is of a more ambiguous character. So at Cricklade, Wilts, the chapel on the south side might equally be considered as an appendage either to the choir or to the transept.