10 



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=Hoe or rude celt. 2=Hammer. 3=Pick. 4, 6=Net sinkers. 



=Pitted hammerstone. 7=Hammer. 8=Anvil and grinding base. 



^Smoother. io=Pitted hammerstone and small anvil. 



