218 THE ESSEX NATURALIST. procuring building materials. While therefore suggesting the possibility that many parts of the centuriation scheme have been lost, it does seem that the existing network bears some direct relationship to the Roman agricultural areas. We are now in a position to return to a consideration of the question whether the Romans continued the practice of the Belgic folk in clearing and settling woodland areas. We may compare the centuriation map and the Belgic pedestal urn distribution, since both these remains denote the occurrence of settlement. The former, implying cultivated areas, had a settlement or "vicus" near each centuria, whilst the latter probably denoted settlement in the vicinity. A comparison will show that the major features of the two distributions are not dissimilar. In the centuriation map the light soils are still occupied, although they do not stand in such a striking contrast to the rest of the county. To the north and west the Boulder Clay has a sparse but widespread settlement—a settlement fading as the forest thickens to the south-west, but increasing around the Roman settlement at Dunmow. On approaching Chesterford, with its lighter soils, the centuriation pattern again becomes clear. The Tendring Hundred shows settlement apparently pushing into the sandy loam region of its neck. South-eastwards the centuriation pattern appears with striking clarity in the district of the dryer London Clay at Barstable, Dengie and Witham—Winstree, ceasing almost abruptly to the west along the line of the vegetational change we have already noticed. To the south-west the forested London Clay shows slight evidence of centuriation. Both this last-named district and the several blank spaces around Danbury and Hockley suggest that their lack of centuriation was owing to the heavily forested soils— a suggestion later borne out by the prevalence, in these parts, of Anglo-Saxon place-names denoting forest. The Centuriation map indicates that the main settlement tendencies observable in the final Iron Age period were repeated in Roman times with few additional variations. The map suggests that the Romans followed the natural course of occupying the majority of those clearings existing at the time of the Conquest. The invaders may have also extended the bounds of such clearings.