MR. W. G. CLARKE ON NEOLITHIC MAN IN THETFORD DISTRICT. 31 
They are a kind of narrow chisel, and were 
used with a hammer to do the liner chipping 
on other implements, and it has been found by 
experiment, that even now, the chipping can 
be best accomplished by flint, and the lost art 
of “rippled” chipping is probably due to the 
fact that the work is now done with steel 
instead of stone. Figure 2 is a representation 
of a fabricator that was first chipped, and 
then rubbed down to a better shape. It is of 
mottled grey flint, opaque, about three inches 
in length, width of base | inch, and height 
I inch. 
This and another implement are the only 
two specimens I have found on Barnham 
Common, though my searches have been long 
t and diligent. The length of other fabricators 
1 in my collection ranges from ljj to 4 inches, 
and the width from ^ inch to 1J inches, the 
Fig. 2. Fabricator, average being { £ inch. 
Flakes. — Flakes are the strips of flint that are chipped off a 
block of stone for the purpose of being made into various imple- 
ments, and before they receive any further chipping. In my own 
collection they vary in length from T to 4 inches, and in width 
from to 2 inches. It is an almost invariable rule that wherever 
flakes are found, implements may be found also. A perfectly formed 
flake has a flat top surface and two sloping faces, the flat face being 
double either of the sloping faces. 
Knives. — The simplest forms of implements are knives, and 
some of them are among the most beautiful. Many of them are 
merely flakes trimmed to a cutting-edge, and are designated flake- 
knives, but some of the leaf-shaped and triangular are very fine 
specimens of workmanship, and were fixed in a cleft in a piece of 
stick, somewhat after the manner of arrowheads. Knives are of 
all shapes and sizes, and under this title the greatest variety in any 
kind of implement is found. Many of the South Downs knives 
are rubbed, but local specimens are extremely rare. By far the 
greater part of the flake-knives only have the chipping on one edge. 
Many of the triangular knives are beautiful pieces of workmanship, 
