176 



Annals of the SoutJt African Museum. 



to the air; i.e., it is smooth, brown, and shghtly polished. The 

 under surface is lighter in colour, rough, and slightly pitted. The 



Fi.;. 26. 



lump was subjected to scarcely any trimming, and the edge was 

 then ground. The scratches were made in the operation of 

 grinding, and are most decidedly not of glacial origin. The shape 



