PALAEOLITHIC INDUSTRIES, CLACTON AND DOVERCOURT. 11 closed for many years. The deposit is situated very slightly below the highest level of the coastal plateau of Essex, on the edge of the Stour Valley, and to the west of the road leading from Upper Dovercourt to Ramsey Rey and Parkeston Quay ; the site is less than 1/4 mile to the E.N.E, of Upper Dovercourt Church. This site was extraordinarily rich for a Palaeolithic gravel, and in every respect stands alone among all the discoveries that have been made in Eastern Essex. In technique the Dover- court industry presents a remarkable contrast to the primitive Palaeoliths that one usually finds sparingly in gravels at about this level. One may confidently consider that it is later than the Grays Inn Lane group; in fact, Prof. H. Breuil considered it to be later than the twisted-ovate group. The technique closely resembles that of the best twisted-ovates, but the twist has been corrected, or even over-corrected, by a slight modifi- cation in the technique, as will be explained presently. I think one must provisionally class the Dovercourt industry as a local development of the Micoque group. The dating of the Dovercourt industry raises one of those difficult problems in the succession of the river gravels, as it appears to be out of its normal place. Unfortunately there has been no opportunity to re-examine the deposit during recent years. There can be no doubt that the Dovercourt implements represent the relics of a local living site that were all swept up together in a bank of sand and gravel ; possibly during an exceptionally high flood, or it might be as an outwash fan far above the valley floor, as the result of a "cloud-burst," or from the melting of snow during the vicissitudes of the Pleistocene climate. An explanation of this nature is in accordance with the unanimous testimony of the workmen that the implements were found indifferently at all depths from top to bottom of the deposit. I am not able to confirm that from my own observa- tion, but as one would expect from their appearance that the implements must have come from a floor, I repeatedly cross- questioned the gravel-diggers on the point, and got them to write in pencil on the specimens the depth at which they found them.