dark brown lustrous flint, almost equally convex on both faces, and of very regular elliptical form. In most cases the outline approximates more to that of Fig. 467. These thin, flattened, oval, and almond-shaped, or ovate, implements seem, as Mr. Trigg has pointed out, to predominate at Icklingham. Those of oval form are especially abundant at Warren Hill.
Fig. 421.—Icklingham. 12
Fig. 422.—Icklingham. 12
Many of ruder character, however, also occur, one of which, in my own collection, is shown in Fig. 422. It approaches more nearly in form to some of the roughly chipped instruments of the Surface period, such as Fig. 16, than do most of the implements from the River-drift.
One of the finest specimens hitherto found in this country is that shown in Fig. 423, from the original in the Blackmore Museum. It is of dark ochreous flint, with the surface considerably decomposed, and the angles but little worn. In the same collection is another Icklingham specimen, in form like that from Thetford, Fig. 427, but 9 inches long and 412 wide.
Besides the more finished implements, a few flakes occur in the Icklingham gravels. Some of these have been chipped all round the periphery by blows administered on the flat face, thus producing a bevelled edge. One such, from Warren Hill, in my own collection, somewhat resembles the implement from Reculver, Fig. 461. It is, however, narrower
