). A channel or canal, is used, like its English
derivatives, to signify a water course, whether open or closed, and next any other
passage which resembles a watercourse.
The method of constructing conduits is described by Vitruvius (viii. 7), who distinguishes
the canalis, which is lined with masonry (structilis
), from the leaden
and the earthenware tubulus.
A ruder kind
of conduit was made of timber or earthenware to carry water from a spring or stream to cattle
in a meadow. Again, canalis
denotes a feeding-trough, which was in the
case of domestic birds placed inside their house, and fed from the outside by pipes (Varro,
iii. 7, 8; 11, 12).
denotes the channel of a sewer, as, for instance,
that in the Forum, which is at one spot exposed to view, and was a favourite station for
loungers (Plaut. Curc. iv. 1, 15
is also a trench or vein in a goldmine (
Plin. H. N. xxxiii. 68
); the barrel or channel for missiles (σῦριγξ
) in a catapult (Vitruv. x. 13, 7); a reed-pipe (
Calp. Ecl. iv. 76
Canalis Calp. in Architecture.
); in the medical writers, a
splint (Cels. viii. 10, 65
) or a canal of the human body (id. iv. 1, 38
); and finally, in architecture, the
“channel” or flat surface running between the abacus
and the echinus
inside the volute, as in the accompanying
cut from one of the triglyphs of the temple of Segesta in Sicily. See Columna