THE FACE OF FOSSIL MAN 
483 
or malar process. In the modern type (fig. 179) the 
supra-orbital ridge is divided into two parts, inner and 
outer. As already pointed out, the supra-orbital ridges 
and angular processes must be included in the bony 
scaffolding which is thrown out from the skull for the 
purposes of mastication. Hence in primitive races, with 
large jaws and strong chewing muscles, these bony ridges, 
particularly the angular processes, are well developed. 
50 O 50 80 
80 50 50 80 
Fk;. 179. — Frontal view of the right half of the Gibraltar skull and left half of a 
modern English skull set side by side to show the difference between the 
Neanderthal and modern types of forehead. 
It is unfortunate that so little of the forehead of 
Eoanthropus has been preserved. We have the whole 
of the left angular process and the commencement of the 
supra-orbital ridge. A study of these parts shows us, 
in the first place, that the supra-orbital ridges were not 
modelled as in the gorilla, chimpanzee. Pithecanthropus, 
and Neanderthal man, and, in the second place, that they 
were different to those of the modern type of man. The 
angular processes in the Piltdown forehead were remark- 
