340 
THE ANTIQUITY OF MAN 
neck may balance and turn the head. A large part of 
the occipital — the supra-nuchal part — extends above the 
neck, under the scalp, until it reaches the two great 
bones which form the roof and sides of the skull, the 
right and left parietal bones. The suture or joint-line at 
which the parietal and occipital bones meet is known as 
the lambdoidal suture (fig. 117). On each side of the 
Fig. 117. — Showing the bones which form the hinder or occipital part 
of a modern skull (capacity 1425 c.c). 
hinder aspect of the skull this suture is clearly seen to be 
made up of two parts — an upper oblique and a lower, 
almost vertical. 
Those are the parts which enter into the formation 
of the hinder part of the skull ; before the Piltdown 
fragments can be rightly replaced one must bear such 
a picture in mind. It is also necessary to point out 
that the occipital bone is made up of right and left 
halves. In the nuchal region the ridge or elevation 
