158 PRIORY OF THE HOLY TRINITY AT REPTON. 
side the choir door, making a total of thirty-four. The arrange- 
ment of the arcades dividing off the choir aisles is somewhat 
eccentric ; the more so, because both sides are contemporary, and 
the plans and sections of the pillars identical. On the north side 
only one base remains, and on the south, three ; but these show 
that the north arches were half as wide again as the south, so that, 
as the perpent-wall terminated at a pillar, there were two arches 
behind the north stalls, and three behind the south. There is, 
unfortunately, no positive evidence how the arcades continued 
eastward. ‘Two additional arches would make a.regular arcade 
on the south of five bays, and this was probably the case ;_ but an 
additional north arch will not make the two arcades of equal 
length, unless it be of slightly wider span than the other two. 
For an explanation of this unsymmetrical setting out, we must 
look to the order in which the parts of the church were erected. 
It has already been stated that the south chapel, and the arcade 
separating it from the choir aisle, are anterior to the choir. 
Further, the additional shafts on the north side of the south 
chapel pillars, prove that the choir aisle was, to say the least, meant 
to be vaulted. Now to enable the vaulting cells to be most easily con- 
structed, it was necessary that a pillar should be opposite a pillar. 
A reference to the ground plan will show that this was done at Rep- 
ton; hence the five bays of the south arcade, and the narrow arch 
next the tower. For the same reason, the south arcade cannot 
well have exceeded in height the arches of the south chapel. On 
the north side, however, the greater width of the arches, and the 
absence of any controlling influence, would allow them to be 
carried up much higher than those opposite, and therefore, over 
the lower arches of the south arcade, there must have been either 
a double clerestory, like we see in the presbytery at Ely, or, like 
Bridlington, the south clerestory windows considerably exceeded 
the north ones in length, 
Of the east end of this part of the church only the rough core 
was found, at a distance of 69 feet from the pul/pitum. It pro- 
jected a bay beyond the aisles. The south wall was of earlier date 
than the south aisle wall, for the latter ends in such a way as to 
