Plate 19 



^Types of rude stone implements improvised from natural pebbles, the shape 

 of which required only slight modification to adapt them for the purposes 

 intended. i=Hce or rude celt. 2= Hammer. 3= Pick. 4, 6= Net sinkers. 

 5= Pitted hammer stone. 7= Hammer. 8= Anvil and 'grinding base.* 

 9=Smoother. 10^ Pitted hammer stone and small anvil 



