eymatiumn 1.) s to be made the hicth pat of he antepignent, and is projchure isequdlen
ie thickneh. Thelehbian eynatiun Pla wvith the atrgdl, s to be feuhptured. Uhonthe
oymatun, vlichis in the supereilun, he hyperthyrun 0)s to be placed, in thichnesecudl
to the lupereilun, and thecéi is to he vronght the Doie gymatiun, lehbian, ataged.
fima, seulpture stl). Then the plain corcona ta), with is cymatiumn, is formed, and its
projecture is equal to the heighith of the sipereilium, which is kad upon the antepagments.
To the right and left projedtuies () are made, a far às the fooings extend, and in the
ungue (K), the same cymatiums are united:
Bor if the lonie kind is to be used, the heighth of the aperture being found
Fig. XXXI.
in the same manner as for the Doric, the breadth is determined, by dviding
the heighth into two parts and an half, of which one part and an half makes the breadth of
the aperture at bottom. The contracture is the lameas in the Doric. The thicknes of the
front of the antepagments (E), is the fourtenth part of the heighth of the aperture; their
eymatium is the sixth part of their thicknes. The remainder, exclusive of the cymatium,
is divided into twelve parts ; three of which make the first corla (a), with its astragal; four
the kecond (b), and five the third (c). These corses, with their astragals, extend all round.
The hyperthyfum is formed in the same manner as that of the Doric. The ancons (LL), or
prothyrides, (as they are called) are wrought on the right and left, and, exclusive of the
(7*) The Lesbian cymatium I judge to be an ogee, or
sima reversa; because the generality of the ancient portals
known to us, have this moulding for the cymatium of their
antepagments; and thus it is in the portal of Cora, which in so
many other respects agrees with the description of Vitruvius,
(8*) The hyperthyrum is the frise, or the frise together
with the bed-mould of the cornice.
(9*) This sentence is very obscure, & in eo scalpendum est
cymatium Doricum, astragalum Lesbium sima scalptura. Vi¬
truvius does not tell us in what part of the hyperthyrum
these mouldings are to be wrought, nor their proportion;
and it is doubtful how or what we are to understand by astra¬
galum Lesbium sima scalptura.
In the portal of the temple at Cora, the mouldings at the
top of the hyperthyrum, serving as the bed-mould to the
cornice, are a cavetto with its fillet; above that, dentils;
and upon them, an astragal enriched with beads, having a
fillet above and below it. Their proportion all together is
two sevenths of the heighth of the hyperthyrum. Vitruvius
mentions no dentils, but a sima; and places the astragal be¬
tween that and the Doric cymatium.
(10*) The projectures here signified are doubtless those
which we call knees, made by the excursion of the cyma-
tium at the upper part of the antepagments; for we find
such projectures were frequently used in the works of the
ancients, as in the windows of an ancient lonic temple now
o k.
remäining at Athens. In those of the Sybil at Tivoli, and
in the portal of the temple at Cora. In this last, the quan¬
tity of their projecture is equal to a fourth part of the
breadth of the antepagment; and their extent from the tor
of the supercilium downward, is equal to the heighth of the
whole supercilium, added to the heighth of its cymatium
and fascia; so that the knee of the facia ranges exactly with
the bottom line of the supercilium.
(11*) Galiani seems to have rightly conceived this pas¬
sage; the footing, or crepido, here mentioned is probably
the cill, or stone, that bears the antepagments. Vitruvius,
therefore, would have the knees project so far as to be
perpendicular with the outside of the antepagments at
bottom.
(12*) Ungue, I imagine, expresses no more than the
several turns or bends of the knee.
The great projection given to the corona seems to make
it necessary to have trusses (or ancons, as they are hereafter
called); such trusses there are adjoining to the knees in the
portal of the temple at Cora, as LL, Fig. XXX.
(13*) The fascia.
(14*) The trusses or consoles: those of the temple at
Nismes are, according to Palladio, formed narrower at
bottom than at top, as here directed.