in width was thus possible. The church of
Appleton-le-Street in Yorkshire has a short nave with north and south
aisles. The north aisle, added in the early part of the thirteenth
century, is narrow, and the roof of the nave was continued over it. The
south aisle, which was probably rebuilt a little before 1300, is broader
and has a separate lean-to roof. The wide east window of this aisle
could not have been introduced, had the south aisle been built to match
the scale of the north aisle.

[Illustration: Fig. 11. Plan of Harringworth church, Northants.]

Sec. 50. The introduction of more light, however, was not the only reason
for the rebuilding and heightening of aisles. The east end of an
aisle, as has been said, provided a convenient place for one of the side
altars of the church. This was the case even in the narrow aisles of the
twelfth and thirteenth century, many of which, like the north aisle of
Great Easton church in Leicestershire, provided with a drain, aumbry, or
a corbel for a statue, bear witness to the existence of a contemporary
altar. At Harringworth in Northamptonshire there had been an aisleless
church, to which a tower had been added at the end of the twelfth, and
aisles early in the thirteenth century. On 24 October 1305 Edward I
granted letters patent to William la Zouche, by which he had licence to
assign a certain amount of land to two chantry chaplains in the chapel
of All Saints. This may have been his private chapel, but was possibly
in the church. A little earlier than this, to judge by the character of
the architecture, a new north aisle had been built, with a new altar at
the east end. Very soon after the granting of the licence, it would
appear that the whole of the south arcade was taken down, and a new
south aisle and arcade built. The work was done in a very conservative
spirit, for the old thirteenth century porch and inner doorway were
rebuilt on the new site, and an old string-course was re-used
internally, beneath the new windows. The piscina and the three sedilia,
which belonged to the altar at the end of the aisle, remain in the
south wall, and there are corbels for statues on either side of the east
window. However, rebuilding did not stop here; for it seems that, during
the next few years, the north arcade was entirely rebuilt so as nearly
to match that on the south. Thus the work, beginning with the north
aisle, and extending over some thirty or forty years, finished on the
s