Sec. 16. The original plan of Brixworth has points in common with some of the other plans which have been noted. In its triple arched screen-wall it recalls the Kentish type of church; its rectangular presbytery between nave and apse is a development of the chancel space which existed west of the spring of the apse at St Pancras. It shares its western porch with St Pancras and two, if not four, of the northern group of churches. In the north and south doorways of this porch it has kinship with Monkwearmouth, and at Brixworth there are definite signs that these doorways led into passages which may have been connected with other buildings of the monastery, or possibly even with an _atrium_ or fore-court. The aisled nave and the traces of a crypt bring it into relation, not merely with Hexham or Ripon, but with the historical church plan of western Europe generally. At the same time, the plan, regarded as that of an English church, is exceptional. The aisled plan of the parish church was arrived at in spite, not in consequence, of the few early aisled churches which might have supplied it with a model. During the epoch which followed the Danish invasions the aisleless plan was deliberately preferred: the rectangular chancel entirely superseded the apse. No further example of the structural screen-wall occurs. In addition to those mentioned, only three more pre-Conquest examples of crypts are known, and such crypts as occur in parish churches after the Conquest are exceptional, and are usually due to exigencies of site. Only three more aisled churches of unquestionably pre-Conquest date exist above ground. Reculver has been mentioned. The others are Lydd in Kent, where only indications of an arcade remain, and the complete basilican church of Wing, near Leighton Buzzard, which has a polygonal apse with a crypt below. Wing is probably much later in date than most of Brixworth, but one cannot but be struck by a certain resemblance in construction between the two naves, and in plan between the crypt at Wing and the remains of the crypt at Brixworth.