Chap. IV.
ROMAN.
183
built to resist the thrust of the earth. The channel for the water is arched semicircularly,and the voussoirs are at the top 3 inches thick, and at their intrados only 2: they aregenerally 12 inches square.
PARTS OF CASTELLUM
Fig. 212. MET
The remains at Jouy are considerable, and aresituated at about one league from Metz , in abeautiful valley, through which the Moselleflow’s. There are sixteen arcades, the openingsunequal; six before arriving at that whichforms the entrance to the village, the othersare in a meadow; the aqueduct afterwardscrosses the Moselle. The w’ork is executedwith small stones, in the form of bricks, laidin regular courses; and in the neighbourhoodis a quarry where many of these stones remain,and the hatchets which prepared them havesometimes been found.
The erection of this aqueduct is attributedto the Roman legions at the time they w r erecommanded by Drusus , who obtained a victoryover the Germans; he was the son of Livia ,and brother to the Emperor Tiberius ; hismonument is at Mayence , where he died atthirty years of age, in consequence of a fallfrom his horse.
The plan of the Castellum and of the Pis-cina limaria may be accurately traced, thearches and construction of which are highly
PLAN OF CASTELLUM
channel
ingenious.
The length of the series of arcades w’hich crossed the Moselle was about 5t 0 toises; thethickness of the piers 12 feet, but the opening of the arches, and the ■width of the piers,varied; these were sometimes 14, and at others 15 feet.
N 4