334 
THE ANTIQUITY OF MAN 
„e«^iAs^ 
the parietal bones at the lambdoid suture (fig. 115). 
Along the middle line, between the right and left parietals, 
passes the sagittal suture. At some distance to either 
side of the sagittal suture is seen the upper limit of 
attachment of the temporal muscles — the temporal lines 
(fig. 1 1 5). Part of the bony scaffolding for the support of 
the face and jaws is seen on the forehead — the supra- 
orbital ridges. 
'"" The cheek bars or 
zygomatic arches 
are just apparent ; 
they pass on each 
side of the head 
in front of the 
ear, to end in the 
,j„ cheeks and thus 
strengthen and 
,00 support the face. 
When we turn to 
80 the same view of 
the skull of Eoan- 
thropus (fig. 1 16) 
we see representa- 
tives of the same 
parts, but their 
clear interpreta- 
tion is not an easy 
task because of the 
Fig. 115. — View of a modern skull from above, showing n-t-pof dcficienCV 
the bones and sutures of the vault (f natural size). P r i i 
m the forehead 
and along the whole length of the roof. The zygomatic 
arches, it will be observed, project far beyond the sides 
of the skull, as in anthropoid apes. There is no definitely 
moulded supra-orbital ridge shown ; the forehead is 
given a wedge shape. The coronal suture is very 
apparent on the left side ; but of the sagittal suture, or of 
the lambdoid, there is no certain trace on this aspect of the 
skull. The temporal lines are clearly visible, both upper 
and lower. Only the upper of these lines are represented 
MODERi 
