reserved are those of the apse and the last bay of the choir: they are
remarkably fine specimens of the art of the period (1148) and, though
restored in 1859-1862, have suffered much less than those at Palermo and
Monreale from the process. The figure of the Saviour is especially fine.
The groined vaulting of the roof is visible in the choir and the right
transept, while the rest of the church has a wooden roof. Fine
cloisters, coeval with the cathedral, adjoin it. (See G. Hubbard in
_Journal of the R.I.B.A._ xv. 333 sqq., 1908.) The harbour is
comparatively small. (T. As.)

CEHEGIN, a town of south-eastern Spain, in the province of Murcia, on
the right bank of the river Caravaca, a small tributary of the Segura.
Pop. (1900) 11,601. Cehegin has a thriving trade in farm produce,
especially wine, olive oil and hemp; and various kinds of marble are
obtained from quarries near the town. Some of the older houses, however,
as well as the parish church and the convent of San Francisco, which
still has well-defined Roman inscriptions on its walls, are built of
stone from the ruins of _Begastri_, a Roman colony which stood on a
small adjacent hill known as the Cabecico de Roenas. The name _Cehegin_
is sometimes connected by Spanish antiquaries with that of the _Zenaga_,
_Senhaja_ or _Senajeh_, a North African tribe, which invaded Spain in
the 11th century.

CEILING (from a verb "to ceil," i.e. to line or cover; of disputed
etymology, but apparently connected with Fr. _ciel_, Lat. _caelum_,
sky), in architecture, the upper covering of a church, hall or room.
Ceilings are now usually formed of plaster, but in former times they
were commonly either boarded (of which St Albans cathedral is perhaps
the earliest example), or showed the beams and joists, which in England
were moulded and carved, and in France and Italy were richly painted and
gilded. Sometimes the ceilings were horizontal, sometimes canted on two
sides, and sometimes they take the form of a barrel-vault. Ribs are
sometimes planted on the boarding to divide up the surface, and their
intersections are enriched with bosses. About the middle of the 16th
century the ceilings were formed in plaster with projecting ribs,
interlaced ornament and pendants, and the characteristics of the
Elizabethan style. At Bramall Hall, Broughton Castle, Hatfield, Knowle,
Sizergh and Levens in Westmorland, and Dorfold in Cheshire, are numerous
examples, some with pendants. In