AQUEDUCT

AQUEDUCT, Aquaeductus, q.d. Ductus Aquae, a Conduit of Water; is a Construction of Stone, or Timber, made on an uneven Ground, to preserve the Level of the Water, and convey it, by a Canal, from one place to another.

See WATER.
There are Aqueducts under ground, and others raised above it, supported by Arches.
The Romans were very magnificent in their Aqueducts; they had some that extended a hundred Miles.
Frontinus, who had the Direction of them, tells us of nine that emptied themselves through 13514 Pipes, of an Inch Diameter.



Blasius has observed, that in the space of twenty-four Hours, Rome received, from these Aqueducts, no less than five hundred thousand Hogsheads of Water: The Aqueduct built near Maintenon for carrying the River Eure to Versailles, is the greatest in the World.
It is 7000 Toises long; and its Elevation 256 Toises; containing 242 Arcades. Aqueduct, in Anatomy, is a Passage or Perforation, partly membranous, and partly cartilaginous; leading out of the Bony Passage of the internal Ear into the Palate. See EAR and PALATE.
It makes the beginning of the Canalis Cochlearis, and is divided into two Parts; the shortest of which opens into the Cavity of the Skull, etc.
It is thus called, not only on account of its Form, which is that of a Canal; but from its serving to discharge any foreign Matters collected in the inner Cavities of the Ear—It is sometimes called Aqueductus Fallopii, from the Name of its first Discoverer.

AQUEDUCT