The residence of prehistoric man in the rich districts between the Sambre and the Meuse is proved by worked flints, fragments of pottery, and human bones dating from most remote times. The stations successively occupied were situated near watercourses or copious springs, and, where possible, on isolated escarped plateaux surrounded by ravines. Hastedon, about a mile and a quarter from Namur, is one of the best examples we can quote.2 The camp, first made out in 1865, formed a long square, covering some thirteen hectares, or about thirty-two acres. It is situated on an isolated mound connected with the main plateau by an isthmus 227 feet long, and is protected on the south and west by a deep ravine: To these natural defences men had added important works to those parts that were accessible. The cutting of trenches a few years ago brought to light walls of a mean thickness of more than nine feet, formed of masses of rock and sand and round pieces of wood parallel with a _revêtement_ of dry stones surmounted by a palisade consisting of three pieces of wood parallel with the walls, and seven perpendicular traverses. All the wood was charred; the besieged had evidently been driven out by fire. Excavations led to the finding of Roman coins; this and the resemblance of the palisades to those described by Cæsar,3 the very name of Hastedon, and the tradition everywhere prevalent in the district, that this bad been the site of a Gallic Roman camp, led to the general adoption of that opinion. In fact, Napoleon III. actually ordered excavations to be made in the hope of finding traces of the Atuatuques, one of the roost warlike of the tribes of northern Gaul; but side by side with historic relics were no less than ten thousand flints. These are chiefly merely chips or nuclei which had served as hammers, or long thin slices, with some few arrow- and lance-heads often skilfully cut, some polished hatchets, and saws with fine teeth. Nearly all are notched and worn with use, which does away with the idea that the place where they were found was the site of a workshop such as I have already described. With these worked flints were found some fragments of coarse pottery, which could not possibly be confounded with Roman or Gallic work. The flints and pottery, and the walls put together without cement, point to the conclusion that if the camp of Hastedon was occupied by the Roman legions, it was long previous to their day inhabited by some Neolithic race, ignorant of the use of any but stone weapons and implements.