THE ESSEX NATURALIST: BEING THE Journal of the Essex Field Club. VOLUME XXIV. THE PALAEOLITHIC INDUSTRIES OF THE CLACTON AND DOVERCOURT DISTRICTS. By S. HAZZLEDINE WARREN, F.G.S. (Read Feb. 27th, 1932 ; with later additions.) (With 1 Plate and 5 Text Figures.) Introduction. FOR some years it has been my intention to deal on compre- hensive lines with the gravels of the Tendring Hundred between Colchester and the sea coast. From time to time I have visited many gravel pits and temporary exposures over this area, but generally speaking, I have found so little in the way of imple- ments or fauna that I have been tempted away to devote most of my time and energies to the rich sea-coast sites while these remain available for study. Although I have not carried out the comprehensive work that I contemplated I feel that the incomplete information I have gathered may usefully be placed on record, together with some tentative suggestions upon the outstanding problems of correlation. The New Perspective in Prehistory. I think that recent investigations have conclusively proved that the Palaeolithic succession is more complex than we formerly imagined. Thirty years ago one not unnaturally thought that the sequence of the Palaeolithic industries represented the evolution of the human race through a steady development of successive stages. Although that is true in a very broad sense, it is now sufficiently obvious that the various industries will not fit when placed together in a continuous sequence. If we glance at the anthropology of the present day nothing is more striking than the manner in which widely different races