§ 32. There are certain cases in which the chancel was of the same width as the nave, and no structural division existed between them. At Askham Bryan and at the chapel of Copmanthorpe, near York, the plan, externally and internally, is a plain undivided oblong. At Tansor, Northants, the chancel was rebuilt about 1140, when the side walls were set back in a line with those of the nave. In St Mary's in the Castle at Leicester, the long and very narrow nave was, as may still be clearly seen, continued eastward without a break into the long and narrow quire and chancel. Here the eastern half was used, no doubt, by the college of dean and canons, while the western half was the parish church. The beautiful church of St Peter, Northampton, built towards the end of the third quarter of the twelfth century, gives us a complete example of an undivided plan, aisled throughout save in the eastern bay, which forms a projecting chancel east of the aisles of the choir.
§ 33. Hitherto we have dealt merely with the rectangular chancel. But there are also churches which end in an eastern apse. These are comparatively few and exceptional. In Yorkshire, where the number of Norman rectangular chancels is large, and buildings such as Adel exhibit the aisleless church in its highest state of architectural development, the number of apsidal chancels can be counted on the fingers of one hand. In Sussex, where Caen stone was largely used, and we should expect foreign influence to be noticeable, the proportion of apsidal chancels is small. In Gloucestershire, the Cotswold district contains several small Norman churches, which have been little altered: the rectangular chancel is universal. These are typical districts; and, to state a general rule, we may say that, while the apsidal chancel is foreign to no part of England, and occurs in unexpected places, as in the chapel of Old Bewick, Northumberland, it is never general in any single region. Its rarity is an important fact. Were our parish churches the work of masons sent out from the larger churches and monasteries, we should expect to find it a common feature; for in those buildings the apsidal plan prevailed. But, in the hands of local masons, its sparing employment is easily explained. To build an apse needs skill, not only in planning, but in stone-cutting. The question of vaulting the apse increases the difficulty and the expense. These difficulties would not trouble masons who had worked at the building of Durham or Ely or Winchester; nor would expense trouble the monasteries, which, according to the popular idea, were so ready to lavish money on the fabrics of parish churches. Many apsidal chancels have disappeared, no doubt; but, if we take the bulk of those which remain into account, we shall find that they have a habit of occurring in small groups, as in Berkshire, where three occur together within a single old rural deanery, and that the large majority of the churches in which they are found were not monastic property. A few belonged to preceptories of Knights Templars in their neighbourhood; and perhaps we may see in their apses a reference to the circular form of the Holy Sepulchre. But, as a rule, we may say that a band of masons in certain neighbourhoods developed some skill in building apses, that money was forthcoming, and that so a few examples came into existence. In one curious instance, Langford in Essex, which is within easy distance of four or five other apsed churches, there is an apse at the west, and there are foundations of another at the east end of the building. For this church a Saxon origin has been claimed: the plan, at any rate, indicates a survival of a plan once common in western Christendom, and especially in the German provinces. In apsed churches, like Birkin in Yorkshire, the apse does not spring from points directly east of the chancel arch. The arch is wide and lofty; behind it is a nearly square rectangular space, which is divided from the apse by another arch. At Birkin the apse has ribbed vaulting, which allows the walls to be pierced freely for windows. At Copford in Essex, Old Bewick, and other places, the roof is a half-dome without ribs: this allows for the display of mural painting, but admits of less light.