where they seemed most abundant in any diverging direction the traces were soon lost, and it was evident that the chips were almost entirely confined to one spot. Not even a chip, barely a single pebble, could be found in the sand beyond this apparent centre of work; and though a most careful search was made, it was remarkable how singularly rare, comparatively, were even fragments of flint or gravel, and for some time it was considered that the area had been worked out.

A short time after this conclusion had been arrived at, and at a point about a hundred yards further up the valley, at the beginning of the cultivation, there was again a discovery of flakes, but these, though very definite in shape, were generally broken in two, and a quantity of fragments, of a triangular section, showed how the plough and spade had been the means of destroying many beautifully definite specimens. Here, again, the surface discovery was very limited, and even that eventually made below the surface. Beyond a small, nearly circular space there was not a single flake, though the ground was most diligently examined; but on excavating, flakes and a large number of cores were immediately found either resting on the upper layer of clay, or between it and the surface. The larger number, however, rested on or near this yellow clay. As in the previous instance, the sands and clay were singularly free from gravel or stones, and nearly every fragment of flint bore traces of intentional fracture.

Going still further up the valley for about one hundred yards, and in a portion of land that had been much longer under cultivation, and hence much more disturbed, two flakes were found, and a magnificent core of black flint, from which long wellshaped flakes had been struck on all sides. As it was difficult to make a minute search, no further discovery was effected, but the surface was carefully searched towards the other station without finding a single fragment of flint that had marks of intentional fracture.

There was but one more relic found, and that was a very perfect circular scraper about 2 or 3 inches in diameter, much worn at the edges, and with nearly flat sides. It was a completely isolated discovery, nothing being found near it: and it lay on the surface of the steeper slope of the small oval hill that closes the valley.

In considering the history of the valley with the light thrown on it by the singular isolation of the groups of flakes, and further by the peculiar nature both of its form and of its bottom, it becomes a most interesting problem to account for its existence in its present shape.

But a short distance south of it, and parallel to the main