those worn by the kings of Camboja and Siam. On the
left and right of the Buddha often stand figures of Phra: Mokha: la
(Moggalana) and Phra: Saribut (Sariputta). It is stated that the
Siamese pray to them as saints and that the former is invoked to heal
broken limbs.[218] The Buddha when represented in frescoes is robed in
red but his face and hands are of gold. Besides the Bot a Wat
contains one or more wihans. The word is derived from _Vihara_ but
has come to mean an image-house. The wihans are halls not unlike
the Bots but smaller. In a large Wat there is usually one
containing a gigantic recumbent image of the Buddha and they sometimes
shelter Indian deities such as Yama.

In most if not in all Wat there are structures known as Phra: chedi
and Phra: prang. The former are simply the ancient cetiyas, called
dagobas in Ceylon and zedis in Burma. They do not depart materially
from the shape usual in other countries and sometimes, for
instance in the gigantic chedi at Pra Pratom, the part below the spire
is a solid bell-shaped dome. But Siamese taste tends to make such
buildings slender and elongate and they generally consist of stone
discs of decreasing size, set one on the other in a pile, which
assumes in its upper parts the proportions of a flagstaff rather than
of a stone building. The Phra: prangs though often larger than the
Phra: chedis are proportionally thicker and less elongate. They appear
to be derived from the Brahmanic temple towers of Camboja which
consist of a shrine crowned by a dome. But in Siam the shrine is often
at some height above the ground and is reduced to small dimensions,
sometimes becoming a mere niche. In large Phra: prangs it is
approached by a flight of steps outside and above it rises the tower,
terminating in a metal spire. But whereas in the Phra: chedis these
spires are simple, in the Phra: prangs they bear three crescents
representing the trident of Siva and appear like barbed arrows. A
large Wat is sure to contain a number of these structures and may also
comprise halls for preaching, a pavilion covering a model of Buddha's
foot print, tanks for ablution and a bell tower. It is said that only
royal Wats contain libraries and buildings called chatta mukh,
which shelter a four-faced image of Brahma.[219]

The monks are often housed in single chambers arranged round the
courts of a Wat but sometimes in larger buildings outside it. The
number of monks and novices living in one monast