lure may be made either of wainscot or bucco. The ceiling
should be either semicircular, or curvature depressed to the
third part of the breadth of the room. The mob beautiful
length will be that which exceeds the breadth by two thirds.
The Cyzicene* oecus was not of Italian but of Gre-
cian origin, nor does it difser so much from the Corinthian in
sigure and use, as in the situation, the doors and the windows.
It looks towards the north, and into the gardens, and so capa-
cious are its dimensions, that it would contain two triclinia
placed opposite each other with their respedfive circuits. It
has folding doors in the middle, and windows made to open
like doors to command a view of the gardens.
The Egyptian oecus, far exceeding the others in
beauty, (see plate 34) contains the height of two Lories, so
that it has two orders or rows of columns. The lower ones
are insulated, with an architrave only placed upon them, ac-
cording to Vitruvius, but to which Palladio properly adds a
sreeze and a cornice. On the corona os this rests an entire
wall, in which is inserted a second order of columns ; which
are either half or three-quarter ones. They are placed di-
rectly over the insulated columns, and are a fourth part less;
and in their intercolumniations are windows. In the part
below, the wall Lands off from the columns, but is connected,
by means of the Lory above ; so that round the Tides of the
hall a walk is formed by the columns, covered with a boor
open to the air, and with a ballubrade.
§. 3. Of the cavjedium we can say nothing certain.
Varro by CAViEDiUM and atrium plainly means the same
thing: Pliny the younger makes a manifeb dibinftion be-
tween them : Palladio and Barbaro, who take Vitruvius for
their guide, adopt the opinion of Varro. Mr. Perrault so far
agrees with Pliny that he transsates CAViEDiUM un cour de
* Cyzicum, a beautiful Greek issand, where noble banquetting houses were
eredted by the antients in the manner described above. It was situated b-tween
Asia and Europe. See Yah Place. B. ill. Ch. 60.