EXPLANATION OF PLATK XLTI. 



Groxip 1 — Figs, 1-5 and 7-9. Variously shaped knives. 

 1 — Fig. 6, Nose ornament. 

 1 — Figs. 10-11. Gritty sandstone rasps. 

 2 — Six rows of ehipped-back surgical knives. 

 3 — Two rows of minute, straight, slender points. 

 4^ — Eight rows of spear-heads or knives. 



