ments of flint, is formed of felstone, no doubt derived either from the Boulder Clay or from some other of the Glacial Beds. One face appears to show a considerable portion of the original surface of the block of stone from which the instrument was fashioned, but the whole surface is now somewhat decomposed, so much so, that it is difficult to determine with certainty the nature of the material, which by some has been regarded as diorite rather than felstone. One face has been carefully chipped, the flakes having been removed in much the same manner as if the substance wrought had been flint. At one part of the other face there is a considerable shoulder between the central ridge and the edge near the butt, where, owing to the 'grain' of the stone, the flakes have run in and not come off kindly. The angles and edges are slightly rounded.
Fig. 443.—Gravel Hill, Brandon. 12
Even the quartzite pebbles so abundant in this neighbourhood, were occasionally utilized instead of flint. Mr. Flower obtained two pointed instruments manufactured from such pebbles, one of which he bequeathed to me. Lord Northesk had another well-formed ovate specimen. Another has already been mentioned as having been found near Icklingham. Another instrument, of a different form, was found by myself in the gravel near Brick-kiln Farm, and is represented in Fig. 443. It is a broad flake, having a well-marked cone of percussion on the flat face. The other face shows, over nearly its whole extent, the original surface of the quartzite pebble from which it has been formed. It has, however, had a portion removed on one side of the cone, apparently to produce a symmetrical form; and the whole of the edge at the broad end of the flake has been trimmed by chipping from the flat face, so as to produce a bevelled edge, which is now somewhat rounded, either by wear in the gravel or by use. In character this implement is like those from Santon Downham and Highbury (Figs. 437 and 453), or the side-scrapers from the cave of Le Moustier.
On the opposite side of Wangford Fen, rather more than 212 miles S.W. of Gravel Hill, and 34 mile E. of Lakenheath, close to Maid's Cross, is an isolated hill, about three miles distant from the Little Ouse, locally known as the Broom, but distinguished on the old Ordnance Map by the words, "The Old Churchyard." The spot has been described by Mr. Flower,[1] with whom I have examined it. The greater part of the hill is capped with gravel, in places
- ↑ Quar. Journ. Geol. Soc. (1869), vol. xxv. p. 449.
