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and a half long, out moderately thin, carefully chipped into 
shape ; they are miniatures of the long chisel, and appear to 
have been fitted into handles. This pattern was made 
longer, to hold in the hand without a handle, when the head 
was rounded ; but before the true flat-sided chisel pattern 
was adopted, it was the custom to cut the whole length on 
one side nearly flat, and the other angular. 
I have likewise some chisels three inches long, formed by 
being chipped off on both sides to form the edge, which is 
about an inch wide, with flat heads, but by no means care- 
fully made. 
In after ages, stone chisels went through various modifica- 
tions, and all of them were ground down to a cutting edge, 
instead of being chipped. They then made some of an oval 
form, gradually reduced in size towards the striking end ; 
while they made others long and narrow, and of an uniform 
width throughout, with triangular slices cut off their face. 
Others were nearly flat, with rounded sides, and contracted 
throughout their length nearly to a point. _ Chisels of this 
description must have been continued in use down to the 
introduction of steel, and probably later, but none of them 
are found in the immediate neighbourhood of Bridlington. 
There was another kind of chisel in very early use among 
the ancient inhabitants, made expressly for cutting out 
hollow surfaces, such as bowls, from solid pieces of wood. I 
have found them made of a curved piece of flint with a flat 
head and a sharp edge ; and, likewise, made of a straight 
piece of flint chipped off at an acute angle at the back of 
the implement, with a pointed head to fit into a handle ; 
and another, hollowed in a gouge shape, with a point to fit 
into a handle. 
DUILLS. 
The drill appears to me to have been gradually developed, 
until it assumed the form of the auger. It must have 
