FLINT IMPLEMENTS. 69 



Chellean forms are occasionally found in the relics of the Upper 

 Terrace between Wands worth and Camberwell. At Stoke 

 Newington important discoveries were made some thirty years 

 ago by Worthington Smith in the Middle Terrace : a palaeolithic 

 floor has been traced over a large area in this district ; the floor 

 is of Mousterian date, but older implements occur below, and 

 in the Trail which covers and so preserves the floor, various 

 forms derived from a distance are mixed together. 1 Other 

 discoveries in the Lea Valley have been made by Mr. Hazzledine 

 Warren, whose paper on the Ponder's End deposit (op. cit.) 

 contains a valuable attempt at correlation of the palaeolithic 

 periods and the deposits, giving the * sequence dates.' East of 

 the Lea a certain number of implements have been recoaded 

 from various gravels and brickearths on the north side of the 

 Thames. 2 



On the south side the Crayford brickearth pits contained the 

 first recorded ' floor ' or workshop, described by Spurrell, 3 who 

 also discovered the Northfleet deposit; 4 the implements and 

 flakes, as well as a few isolated specimens found recently, are of 

 Mousterian age. 



At Wansunt, at the north-west corner of Dartford Heath, 

 a large number of examples have been obtained referable to 

 Chellean, older and newer Acheulian and early Mousterian. 

 Messrs. Leach and Chandler consider that the true Upper Terrace 

 gravels yield the earlier forms, those of St. Acheul II. and Le 

 Moustier being confined to certain stream -channels subsequently 

 cut through the deposit ; 5 excavations by the British Museum 

 and Geological Survey suggest that the newer gravels are due 

 to the lateral encroachment of the main stream when flowing 

 at a slightly lower level than that at which the main mass of 

 gravels was deposited. 6 At the Globe Pit, near Greenhithe 

 Church, late Acheulian and Mousterian implements have been 

 found in the brickearth and Coombe Rock. 7 Implements 

 belonging to the various divisions of the Lower Palaeolithic 

 have been found in the valleys of several of the southern 

 tributaries. 



Of the relationship between the Upper Palaeolithic cultures 

 and the geological sequence we have little knowledge, most of 

 the implements assignable to that division being surface finds ; 

 they are formed from flakes in contradistinction from those of 

 the Chellean and Acheulian, among which core forms greatly 



1 Journ. Anthrop. Inst., vol. viii, 1879, pp. 275-279; vol. xiii, 1884, pp. 35- 

 84 and PL viii-xxiii; 'Man the Primeval Savage," 1894, also 'Guide to 

 Antiquities of Stone Age," British Museum, 2nd Ed., 1911, pp. 21, 22. 



2 See Essex Nat. passim. 



3 Quart. Journ. Geol. Soc., vol. xxxvi, 1880, pp. 544-548 



4 Archoeologia Cantiana, 1883. 



5 Proc. Geol. Assoc., vol. xxiii, 1912, pp. 102-111; vol. xxiv, 1913, pp. 337 

 344. 



6 Archoeologia, vol. Ixv, 1914, pp. 199-212. 

 ' Ibid., vol. Ixiv, 1913. pp. 192-196. 



