134 Prim aval Ma?i in the Valley of the Lea. 
exhibits glacial striae on a large patch of original crust on 
one side, and indicated at d on edge view. This implement 
was found on the “Palaeolithic Floor” in three pieces, by 
two different men at different times and in different places. 
If the report given by the finders is true,—and I have no 
reason for disbelieving it,—the implement must have been 
broken in Paleolithic times. The men who found the pieces 
did not know they would fit together, and the fourth piece, 
indicated by dots, although sought for, was never found. 
The mode of manufacture of these implements seems to be 
obvious : in the first place, suitable pieces of flint were got 
together and those which na¬ 
turally approached an imple- 
ment-like form were generally 
selected. The reason for this 
is clear, for such blocks would 
be less troublesome to trim to 
shape, and a smooth butt-end 
would be ready covered with 
the natural crust of the flint, 
and free from inconvenient 
asperities. It follows, there¬ 
fore, that many implements 
are natural blocks of flint 
cleverly pointed or furnished 
with artificially made cutting- 
edges. If suitable natural blocks of flint did not present 
themselves, then some large block of flint would be 
“quartered.” This was done by impact with a hard 
tough stone, and the most suitable of the newly-broken 
pieces of flint were selected for manufacture into tools. 
The fashioning of the blocks into implements was carried 
out by striking skilful blows on the edge of the flint, 
possibly with a tough quartzite pebble. The result of these 
repeated blows on the edge of the flint block would be that 
numerous splinters or flakes would fly off from the flint at 
each impact of the quartzite pebble. Large flakes would be 
first struck off, and as the implement gradually approached 
Fig. 20.—Fabricator, one half 
actual size. 
