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compartments is surmounted by two small gables with their outer
mouldings foliated, crowned with a finial, and finished at the bottom
by a grotesque figure of a dragon or other animal; the inner face of
each gable contains within a circle a head in bas-relief, those on the
north side representing the major prophets, Isaiah, Jeremiah, Ezekiel,
and Daniel; those on the south represent four doctors of the church,
Jerome, Ambrose, Augustine, and Gregory; the other portions being
filled in with mosaic work. The centre compartment has three
projecting canopies, the faces of which are enriched with mosaic, the
angles are crocketed, and finished at the bottom with roses and
grotesque figures. Above the centre canopy, on a lofty enriched
pinnacle, stands a figure of our Lord; on the north side, on a lower
pinnacle, stands a figure of Moses; and on the south side a figure of
Elias, the three being typical of the Transfiguration.

The upper portion of the white stone screen behind the alabaster work
is also divided into five compartments of open work with geometrical
tracery; in front rise five gables, the centre being larger and higher
than the others. The outer mouldings of the centre gable are enriched
with foliated crocketing with which is intermixed the early church
symbol--pelican feeding her young--and the apex surmounted by a figure
of our Lord enthroned: the inner portion of the gable contains, in a
trefoil, a basso-relievo of the Annunciation, in alabaster. The four
side compartments are also surmounted by gables, on the top of which
stand respectively the figures of the four Evangelists, in alabaster,
their respective emblems being worked in the crockets; on the inner
faces of the gables, within trefoils, are busts in relief, those on
the north side represent Mary Magdelene and Mary the mother of James;
those on the south, St. John the Baptist and St. John the divine; the
remaining space in each gable being filled in with mosaic. Outside and
between these gables rise spiral pillars, on the tops of which are
placed figures of the virtues, Faith, Hope, and Charity, on the north
side; and of the graces, Justice, Prudence, and Fortitude, on the
south side, executed in alabaster.

The wings also are of white stone, and not so high as the centre; in
each are three openings with geometrical tracery; and below these
openings the wall is covered with diaper-work of an elegant pattern.

The portion of this screen, which form