rman tower,
corresponding to its fellow on the south side, the original purposes of
which are still a matter of much discussion among antiquaries. Built by
Bishop Warelwast in the twelfth century, they stood as two distinct and
independent towers, until Bishop Quivil, during the rebuilding of the
Cathedral in 1280-91, ingeniously opened up the inside walls, supporting
the remaining portions of the walls upon arches, thus forming the
interiors of the towers into transepts. The exterior of the northern
tower is plain walling for part of its height, when it is divided into
four stages by horizontal bands, each stage containing elaborate Norman
arcading, ornamented with zigzag moulding. It is surmounted with an
embattled parapet with a turret at each angle. In the north wall a fine
Decorated window was inserted by Quivil for the purpose of lighting his
newly made transepts. To make way for this window a portion of the
arcading of the first stage was cut away. The towers are similar to each
other, and they were formerly capped with spires. In 1752 the spire on
the north tower was taken down, that on the south tower having been
removed at a much earlier date. Just below the window, on the face of
the north tower, are the masonry marks of the gable of a house. This was
the old Treasurer's House, wherein Henry VII was lodged when he came to
Exeter to put down Perkin Warbeck's rebellion.

Near the north tower is the projecting north porch with its embattled
parapet. On the eastern side of the interior are the fragments of what
was once a Calvary, and on the central boss of the roof is a
representation of the Agnus Dei.

An apartment above is known as the "Dog Whipper's" room, a relic of
those days when an official was appointed whose duty it was to keep
stray dogs out of the sacred building.

On the exterior of the clerestory wall immediately above the porch is a
projection which marks the Minstrels' Gallery, and is lighted by a
window. Along the whole length of the Cathedral, from the west end of
the nave to the east end of the choir, are the flying buttresses that
counteract the thrust of the heavy roof vaulting of the interior.

At the extreme eastern end of the Cathedral the Lady Chapel and its
sister chantries can be seen to great advantage with their windows
filled with tracery. The great Perpendicular east window is partially
hidden by the more easterly portions of the fabric, but it contains some
fine old glass, on w