D. 360 ; it supplied the palace and hot baths, but was destroyed by the Normans. It was above nine miles and a half long, and was entirely under ground, except the stone arcade over a deep valley at Arcueil. After its use had been suspended 800 years, a new and beautiful arched Aqueduct was built by the side of the ruins of the old one, and its final restoration to public use was completed in 1634.

Part of this ancient construction, consisting of two arches substantially built, still exists, near the modern Aqueduct.

The Aqueduct bridge over the valley of Arcueil has twentyfive arches, is 72 feet high and 1,200 feet in length.

In the interior of the Aqueduct on each side is a parapet which forms a walk. On the outside along the whole line are various openings, called regards.

This Aqueduct was thoroughly repaired in 1777 ; and fresh sums of money have lately been devoted to the same purpose by the city of Paris. It supplies 36,000 hogsheads daily.

Aqueduct of Maintenon.

This work, had it been completed, would have been one of the most remarkable of modern times. The project was one

of the noblest examples of the enterprise which characterized the reign of Louis XIV., and had it been carried out would have presented a work equal in grandeur to any of the kind constructed by the Romans. It was projected by Vauban,

and the work was commenced in 1684, but was abandoned in 1688.