230 MR. W. G. CLARKE ON NORFOLK FLINT IMPLEMENTS. 
to the square mile or 4320 to the acre. From this enormous 
number of implements it is obvious either that there must have 
been a large population, or the locality must have been | 
occupied for a very lengthy period. All the evidence favours 
the latter hypothesis. It is very probable that many of these 
sandy sites were used after the introduction of the culture of 
the Bronze age, and it is noteworthy that at Weeting, Santon, 
Rushford, West Harling, Harpley, and Broome, as well as on . 
the Suffolk banks of the Waveney and Little Ouse, and the 
heathland country round Woodbridge, Neolithic implements 
of the most delicate type are found in the immediate neighbour- ii 
hood of round barrows, possibly of the Bronze age. 
(4) Implements of polished flint or other stone, or made 
of igneous or other rocks. The Iberian farmers of the Neolithic 
age appear to have settled chifly on the hill-tops and gradu- 
ally extended cultivation down the slopes. The succeeding 
Goidels of the Bronze age, however, planted their homesteads 
in the fertile valleys. It can now hardly be doubted that 
throughout the Bronze age, stone implements of certain kinds 
were still utilised, and probably the big polished axes — 1 
magnificent specimens of which are in the Fitch Room of the 
Norwich Castle-Museum — perforated axes, and hammers of 
various kinds of stone were first used. Implements chipped ( 
and afterwards rubbed may mark the transitional stage 
between sandy site implements solely chipped and implements 
solely rubbed. With boulder clay and sandy site implements I 
it is possible for a prehistoric archaeologist to say whether it 1 
is likely they will be found in certain localities, and as a rule * 
these forecasts are justified by events. Polished implements 1 
appear, however, to be discovered by accident. Though 
there are over eighty Norfolk localities for polished imple- { 
ments, they each represent but a few specimens — in most 1 
cases only one— while in some of the parishes where there 1 
are sandy sites thousands of implements have been found. 
