that in the
centre, higher and broader than the others, is pierced and (except in
the belfry) glazed. In their enrichment these arcades resemble the
windows of the central compartment. The second stage is not quite so
high here in the towers as it is there, and the level of the
string-course above is consequently broken. The third stage, taller than
the second, reaches to the springing of the gable. The fourth, taller
than the third, rises somewhat above the gable cross, and the shafts of
the lancets are twice banded, while above are two circular panels, which
on the north tower are raised and contain quatrefoils, but on the south
tower are sunk and contain trefoils. On the other faces of these towers
the arches are not so richly moulded, and the shafts are single and also
detached, except in the uppermost stage of the north tower, where they
are engaged and filleted. As the second stage does not descend so low
upon the western face as upon the other faces, the string-course below
it, after passing round the corners of the facade, is stopped, and when
it is resumed it passes above the sill of the arcade, being carried
round the little plinths of the shafts. All the string-courses, it will
be noticed, are enriched with the nailhead moulding. The buttresses rise
to the parapets without diminishing in breadth or projection--an early
feature, and three large rolls or beads are worked upon their edge.
Those that flank the portal have each a large niche at the bottom, with
engaged shafts, and the head and dripstone trefoiled. At the corners of
the facade, where the staircases are, the buttresses are triple. The
original corbel-table, surmounted by a row of dog-tooth ornament,
remains at the top of the towers, but the battlements and pinnacles have
been put up since the removal of the spires in 1664, and were renewed in
1797.

The bells, ten in number, are in the south tower. Of the mediaeval peal,
which consisted of six bells, the largest, known as the _Klank Knoll_,
was made in 1379 at York, and perhaps hung in the north tower; while
some of the others seem to have been made in Ripon in 1391. They were
all recast in 1761 by Lester & Pack of London, after which there were
eight. Two of these (Nos. 4 and 7) were recast in 1866 by Warner of
London, and two new bells (Nos. 1 and 2), by Shaw of Bradford, have been
added since 1890. The ninth bell is rung every evening at nine for the
curfew. The mediaeval clock, mentioned in 1379