258 DR. C. B. PLOWRIGHT ON NEOLITHIC MAN IN WEST NORFOLK. 
a natural fracture; the opposite convex side has received a 
considerable number of blows to trim it into shape. Its greatest 
thickness, three inches, is about one-third its length from the butt 
end, from which part it slopes away to a sharp edge at the opposite 
extremity. A number of blows along the sides have brought this 
stone into a very hammer-like form ; clearly no known celt form 
was in the mind of the person who fashioned this stone. 
Another form is shown at hg. 7. These kind of stones are 
Pig. 7. Hammer-pick, a large heavy implement, probably intended to be 
held in the hand. 
admirably adapted for picking into the chalk, either by being held 
in the hand, or more probably hafted in the manner of a hammer. 
Some specimens are much more carefully worked than others, but 
the general type is that above described. 
