114 FLINT IMPLEMENTS IN VALLEY OF THE SOMME. CHAP. Til. 



Fig. 8. 



Flint implement from St. Acheul, near Amiens, of the spear-head shape. 



Fig. 8, Half the size of the original, which is seven and a half inches long. 

 a Side view. b Same seen edgewise. 



These speir-headed implements have been found in greater number, pro- 

 portionally to the oval ones, in the upper level gravel at St. Acheul, than 

 in any of the lower gravels in the valley of the Somme. In these last the 

 oval form predominates, especially at Abbeville. 



