Primaeval Man in the Valley of the Lea. 135 
the required form the flakes would become smaller and 
smaller. The smallest flakes were probably pushed off, as 
some savages now detach minute flakes by pressure ; this 
could have been done with a canine tooth or a boar’s tusk, 
or a tool known as a “fabricator.” Though “fabricators” 
Fig. 21.—Anvil-stone, one half actual size. 
are pointed out as Neolithic tools by Mr. John Evans, yet, 
as far as I know, they have not hitherto been described 
amongst Palaeolithic tools; they, however, occur in the 
Thames Valley-gravels, and one from Stoke Newington 
Common is illustrated one half actual size in fig. 20. 
