e of round-headed lancets,
four in each bay. Above the arcade was originally a string of chevron
moulding running along the whole length of the aisle; but this has been
hacked off, except beneath the most eastern window. In the south aisle
there are five such lancets in each bay west of the prior's door, and
four in each bay beyond. The windows east of this door are higher in the
wall than the others, because of the cloister, and the wall arcade is
correspondingly more lofty. The chevron moulding remains in this aisle
for seven bays, after which (until the last bay but one) the marks of it
are clearly to be seen. One of the windows in the south aisle is
original; all the rest, except one, have been recently made like it. In
the north aisle all the windows are of the Perpendicular period, and
have three lights under ogee arches. All are filled with stained glass.

[Illustration: THE SOUTH AISLE OF THE NAVE.
_Photochrom Co. Ltd. Photo._]

In the south aisle is placed an ancient memorial stone of the greatest
interest. It consists of the square base and part of the shaft of a
cross. It was brought here from Haddenham, where it had been used as a
horse-block, by Mr. Bentham. On the base is this inscription:

LVCEM TVAM OVINO
DA DEVS ET REQVIE(M)
AMEN.

Ovin has been named in the account of the foundress as being her chief
agent, to whom was entrusted the civil government of her territory.
There is every reason to believe that this cross was erected either by
him or to his memory; and if so it must be twelve centuries old.

Just west of the monks' door is the entrance to the recently constructed
vestry for the choir-boys. This is thought to have been originally the
entrance to the cloister library or bookcase.

#The Octagon.#--Few visitors will perhaps be disposed to examine any
of the objects of interest in the cathedral before an inspection of the
beauties of this magnificent erection, the first sight of which, from
one of the smaller arches towards the aisles, is a thing never to be
forgotten. There is not one of the many able artists and architects who
have written about the octagon that has not spoken of it as being
without rival in the whole world; and the admiration that was expressed
fifty and more years ago would have been far greater, and the enthusiasm
more profound, had the writers seen it in its present state of perfect
restoration. No description can do adequate justic