134 



PREHISTORIC FISHING. 



In Fig. 212 representations of a series of objects illustrating the process of 

 manufacture are grouped together. A piece of Naliotis-shell was first reduced 

 to a rude disc-form (a), and then pierced with a hole in the centre (b) by means 



a 



g 



Fro. 212. Series of designs illustrative of the method of making fish-hooks of shell. 



of a four-sided pointed flint implement (c) . The enlarging and rounding of the 

 hole (as shown in d) was performed with a double -pointed borer of hard, coarse 

 sandstone (e), and an ordinary flat piece of sandstone served to grind the per- 

 forated disc into a ring-like form (f). By the removal of certain portions of this 

 ring (hatched in g) with a sort of double-edged stone knife (h) and some further 



