DE. A. SMITH WOOBWAEi) OlS A 



[vol. Ixxiii, 



Fig. l.—Siqyposed hammer-stone 

 from the Piltdotcn Gravel; 

 the natural size. 



[A = side view; B=face showdng the original crust 

 of the flint; C = extensively- flaked face: x~ 

 battered portions.] 



of flint Although so much 

 half of material Avas carefully 

 exammed, neither bones 

 nor teeth Avere met with. 

 The only noteworthy 

 find was a battered 

 nodule of black flint, 

 which occurred m a 

 rather sand}^ patch of 

 the dark-brown gravel 

 resting immediately on 

 the basal layer. This 

 specimen, which is con- 

 spicuously different from 

 the other flints and very 

 little stained, may have 

 been used by man as a 

 hammer-stone (text-fig. 

 1). It measures nearly 

 13 centimetres in length 

 by 9'5 cm. in width, 

 and about 7"5 cm. in 

 maximum thickness. 

 The largest face (C), 

 which is almost flat, has 

 been produced by coarse 

 flaking, and bears marks 

 of much battering round 

 the edge, especially at 

 one angle {x). The op- 

 jDosite large face (B) is 

 covered for the greater 

 part by the original 

 crust of the flint-nodule, 

 but is strongly battered 

 along the two cross- 

 ridges {x) and one con- 

 necting edge, from which 

 lateral flakes have been 

 struck. Where not thus 

 flaked the periphery of 

 the flint is also covered 

 with the original crust. 

 Like the later undoubted 

 hammer- stones, there- 

 fore, this flint has been 

 used mainly on two 

 opposite faces ; but it 

 appears to owe its j^re- 

 sent form merely to use, 



