12 PRE-HISTORY IN ESSEX. "Primeval Man in the Valley of the Lea," T. & P., iii., 1883, pp. 102-147, 24 figs, including map and numerous sections., Palaeoliths from Waltham and Cheshunt and other localities in the Lea Valley, and from the Stoke Newington district. The stratigraphy of the "Trail" and also the "three ages" of implements are illustrated and described. The latest of these three series is Mousterian, the intermediate is that formerly known as Acheulian (although this term is now used in a different sense), but now called Chellean. The earliest of the three stages is truly Palaeolithic : it is not Strepian, and it is certainly not Chellean, as now understood. It has never received adequate recognition ; but, as it was first described in this country, one would think that it should receive an English name. Ibid. continued, E.N., i., 1887, pp. 36-38, 2 figs. Records further discoveries nearer the source of the Lea. Wheathamp- stead, in gravel south of the river at 400 feet O.D. (the river being 300 O.D.). Also at Hertford and Ware, and still further up the valley at Harpenden and Luton. Ibid. continued, E.N., i., 1887, pp. 83-91, 17 figs. Describes some replaced flakes from the Mousterian "floor" of N.E. London and discusses the manufacture of stone implements. Some "fabricators" are illustrated, one of which found "with other palaeolithic relics" at Little Thurrock would now be called a "grattoir Tarte." Ibid. continued, E.N., i., 1887, pp. 125-136, 15 figs., and Proc. iv., 1884, p. cxxvi. Describes additional implements from the "floor," and also two pointed birch stakes, nearly 4 feet long, associated with branches of Clematis vitalba, fronds of Osmunda regalis, etc., and charred wood. Mingled with this debris were many flakes and one implement. This probably represented, if not a hut, at least a "wind-brake," like that used by the Australians, and also by the shepherds of this country to-day [107, 108]. 74 Illustrations of re-working of older implements at a later date (E.N., fi., 1888, pp. 68, 2 figs) from the Stoke Newington "floor," and elsewhere. 75 "Lepores palaeolithici, or the Humorous Side of Flint Imple- ment Hunting" (E.N., ii., 1888, pp. 7-12). 76 Large and heavy examples of palaeolithic implements (E.N.,