n the large
Perpendicular window was inserted in the north end of the transept. At
the north-east corner of the transept stands a richly-ornamented turret
of Norman date. Round the lower part of this the arcade of intersecting
arches which runs round the whole transept is carried; above this, round
the turret, runs an arcading of semicircular-headed arches springing
from pairs of shafts; above this the wall is decorated with diaper work;
and finally, another arcading, this time of round-headed arches rising
from single shafts, encircles the turret. The turret is capped by a
sloping roof of stone attached to the transept wall. This turret is
worthy of close attention, because it shows how the Norman builders
hated monotony; each stage has its own decoration unlike that of
any other; and, moreover, there are variations in the shafts of the
arcading--some are plain, some decorated in one way, some in another.
The same love of variety may be seen here that lends so great a charm
on a larger scale to Flambard's glorious nave at Durham. No doubt this
north transept had attached to its east wall an apsidal Norman chapel
similar to that which still exists on the eastern side of the south
transept, but this had to make way for an addition of two chapels, which
we may assign, from the character of their architecture, to the latter
end of the thirteenth century. The northern chapel is lighted by a
three-light window with three foliated circles in the head, which is
rather sharp pointed, and the southern one by a two-light window with
one foliated arch. These are beautiful examples of plate tracery. Above
these chapels is a small chamber lighted by a window of similar
character. This is supposed to have been the tracing room, where the
various architectural designs for the building were drawn.

To the east of the transept may be seen the #Choir# and #Presbytery#,
with its four clerestory windows; the #Choir Aisle#, also with four
windows; the #Lady Chapel#, with the octagonal turret-staircase leading
into Saint Michael's Loft above it. It will be noticed that there is no
window in the aisle under the western clerestory window of the choir,
as the space where this would have been found is occupied by the two
chapels to the east of the transept, and also that the aisle extends
beyond the choir and flanks the western part of the Lady Chapel. The
whole of this part of the church is of Perpendicular character. The
windows of the choir a