﻿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 
  

  

  