270 Journal of the Asiatic Society of Bengal. [July, 1914. 



9 



cms., thickness — 1 cm. The blade is slightly convex. Pur- 

 chased in Shih-tien. 



Figure 19. Chisel, formed by obliquely grinding away one 

 end of an elongated pebble of siliceous slate. On the convex 

 back surface there is a scratched outline which bears a remark- 

 able resemblance to the form of a double-shouldered or spade- 

 shaped celt, similar to one figured in the illustrations of the 

 Massie collection. Dimensions, length — 8*5 cms., breadth 

 across edge — 3 cms., thickness — 1*5 cms. Purchased in Shun- 

 ning Fu. 



Figure 20. Broad chisel with sloping sides, the edge is 

 formed by bevelling off the front face and is only slightly 

 curved. The flat sides, slightly bevelled off where they meet 

 the faces, slope towards an irregular butt. Both faces are 

 very slightly convex. Material, a brownish, siliceous slate with 

 a fine polish. Dimensions, length — 8 cms., breadth across 

 edge — 5 cms., across butt— 4 cms., thickness— 2 cms. Pur- 

 chased in Shih-tien. 



Figure 21. This example so closely approximates figure 

 20 that a separate description is unnecess try. The onlv note 

 worthy differen3e is found in the sharp edge made by the side 

 with the back and front faces, near one corner of the edge. 

 Material, a drab, siliceous slate; somewhat broken. Dimen- 

 sions, length — 8 cms., breadth across the edge — 5 cms , across 

 the broken butt — 4 cms., thickness— 1*5 cms. Purchased in 

 Shih-tien. 



Figure 22. Chisel celt with rounded sloping sides meeting 

 in a straight butt. The portion of the sharp edge which re- 

 mains is straight. Material, a fine-grained basalt. Dimensions, 

 length —9 5 cms. , breadth across edge— 5 cms., across butt 

 — 3-5 cms. The slight conchoidal fractures which this speci- 

 men bears are attributed not to accidents after its manufac- 

 ture but to the pecking which preceded the polishing of the 

 stone. Locality, Wa-tou-tien. 



Figure 23. This polished stone chisel represents a type m 

 which both back and front faces are ground down to produce 

 the blade. The sloping of the front face commen es at three- 

 quarters of the length from the butt, but that of the back face is 

 done at a high angle and only proceeds a very short distance 

 above the edge. The result is a straight, remarkably sharp 

 blade. The remaining portions of both faces are Hat, though 

 slightly bevelled off to meet the flat sides which taper a little 

 towards the butt. Material, a light, bluish grey, siliceous lime- 

 stone with a high polish. Purchased in Shri-tien. Dimensions, 

 length— 6-5 cms., breadth across blade— 4 cms., across butt — *, 

 thickness 1*5. 



Figure 24. Another example of the same type with a 

 still broader blade One of the sides of this specimen appears 

 to b* a natural joint plane. The back face is slightly convex. 



