NEOLITHIC SITES IN UPPER VALLEY OF ESSEX CAM. 65 Chalk or Boulder Clay; worked pebbles from the gravel are uncommon. Two implements that show polish have been ob- tained, these are apparently made from polished axes that have been reworked to form scrapers; no polished axes have been recorded from this site. A barbed and tanged arrow-head in the Saffron Walden Museum is labelled as being found at New- port, possibly from this site. The patination of the flint on this site is varied. The bulk of the specimens are either blue mottled, or unpatinated with a greyish appearance, in about equal pro- portions; the remainder are black, cherty, or with an ochreous patina. Very occasionally the basket-work patina is observed. Bones and calcined flint are not uncommon on the site. So far no pottery has been found. The position of this site in relation to that of the ancient Newport pond which marked the position of the spring heads of the Cam is particularly interesting as indicating the extreme antiquity of the settlements and the importance of the spring- heads in determining their position in this locality. Saffron Walden, Wenden and Newport are settlements of this type. The surroundings of the springs at Walden are unfavourable for flint hunting, as grass land or buildings surround the area, but there is no doubt that the antiquity of the town is great, and the discovery of pits under the Saxon cemetery at Hill House points to a primitive Neolithic settlement. No definite site has so far been recorded at Wenden, but there are indications that further search in this locality may be fruitful; two possible sites near the springs have been noted, but further survey is needed before a definite record can be established. Bronze Age, Keltic, Roman and Saxon remains have been recorded from the immediate vicinity of this village. XI. Chrishall. Chiswick Hall Farm, A. Essex. Sheet VIII. N.W. Longitude 0° 6' 14" E., latitude 52° 0' 35" N. Elevation 466 feet O.D., and about 266 feet above the level of the spring- heads at Wenden. The site is about 11/4 mile S.S.W. of the church, and is situated on a field west of the bridle road that runs S.W. from Chiswick Hall and west of High Wood. It is on the crest of the water- parting between the drainage of the Stort and Elmdon Water E