MEN OF THE loo-FOOT TERRACE 
175 
Mr Prigg formed the opinion that it was part of a 
woman's skull, and with that conclusion I agree. Further, 
from the fact that the sutures between the separate bones 
are closed on the inner aspect and open on the outer, 
the woman may be regarded as over forty years of age. 
The next point I tried to determine was : How much 
of the frontal bone is missing ? In an average English 
skull the length of the frontal bone, measured from the 
bregma (see fig. 112, p. 331) to the nasion at the root of 
the nose, measures about 130 mm. The actual amount 
present in the Bury St Edmunds fragment is 89 mm. 
I have presumed that about 1,5 "i^i. was missing from 
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BURY ST EDMUNDS 
Fig. 61. — Bury St Edmunds cranial fragment viewed from the side 
and from the front. 
the lower part. If such an amount is restored, the 
forehead assumes a natural proportion. It is not likely 
that I have underestimated the amount missing, for, in 
the lower part of the frontal bone (see fig. 61), there 
is present an extension of the frontal air sinus. It is 
unusual in skulls of the modern type to find the air 
sinuses ascending more than 30 mm. above the nasion. 
In Neanderthal skulls the frontal air sinuses have a less 
extensive development than in skulls of the modern type. 
From the drawings which are given in figs. 61 and 62 
it will be seen that the Bury St Edmunds fragment can 
be conveniently oriented within the outline of a modern 
skull. The original skull was certainly, as regards length. 
