420 
THE ANTIQUITY OF MAN 
this early Pleistocene man shows, not a primitive feature, 
but one which must be regarded as evidence of a fairly 
high degree of specialisation. 
Before leaving the occipital aspect of the skull there 
are several features to which attention should be drawn. 
It will be observed (fig. 1 54) that the lateral sinuses fall 
almost on the horizontal zero line — a primitive character. 
A second point worthy of notice is that while the original 
^ 80 50 O -'0 80 
Fig. 154. — Occipital view of the Piltdown brain cast as restored by the Author. 
brain cast (fig. 153) is given the flattened form with which 
we are familiar in the brain casts of anthropoids and of 
Neanderthal men, the other reconstruction has assumed a 
form very similar to that found in brain casts taken from 
modern skulls (compare figs. 152 and 154). The most 
important feature to be noted, however, is the general 
enlargement of the brain which results from the opening 
out of the vault of the skull in order that the various 
parts may be brought into their proper relationships to 
