164 THE ESSEX NATURALIST. Southwark. There was pottery of all periods. Some Arretine ware and La Tene III. types with evidence of Roman influence were found. Brentford. The pottery may belong to the end of the 2nd century. The evidence suggests that subsidence commenced in the early 2nd century and its effects were widely felt by the end of this century, when many low-lying settlements were submerged. The limit of tidal influence in the estuary in the three-to-four centuries of Roman occupation was advancing westward and the divergent views as to the point at which it ceased may be harmonized. The Saltwater Creek. The creek lasted for a long period, during which estuarine clays were deposited. They are 51/2ft. thick at the corduroy road and form a layer 2ft. thick over the whole causeway ; their upper surface is 9ft. above O.D. These marine clays are dark-grey except near the landing-stage, where they are yellowish-grey from admixture with the gravel of the shore ; they are traversed by branching rusty-red veins from decayed seaweed, and contain at all levels many marine shells ; numerous shells at the same level indicate old cockle-beds. Near the position of the old shore medieval pottery of the 13th century was found, akin to that of the land site. The creek was an important physical feature ; it was the centre around which the three manors of Southchurch developed. The "inning" of the Southchurch Marshland. The date when a barrier was constructed to exclude the tidal water is un- known ; but light is thrown by the scanty records, place-names and archaeological remains. In the early Saxon period there was probably a riverain settlement in a forest clearing at Samuel's Farm ; in 1929 an inhumation burial with a hoard of Saxon sceattas of about 700 A.D. was found near by [39]. This interment with funeral gifts, in the open country, suggests a pagan burial. Churchyard burial dates generally from the early part of the 8th century, but Southchurch was still pagan, although churches had been erected by Cedd about 653 A.D. at Bradwell and Tilbury and by Erkenwald at Barking in 675 A.D. A church, Southchurch, was built probably before the Viking period (800-950 A.D.) as it had given its name to the district before 824 A.D., when it was presented with the area around to Christ Church, Canterbury. The usual continuity of sacred sites suggests that it occupied the