THE SKELETON 5 
This so-called processus frontalis is remarkable on account of its 
more frequent occurrence in the lower races, such as Negroes, 
Australians, and Veddahs (according to the Sarasins it occurs in 
Fic. 39.—SKULL OF A GIRL TWO YEARS OLD, in which the temporal bone ({¢p.) is 
separated from the frontal ( fr.) by the broad ala magna of the sphenoid (alisphenoid 
bone, @.s.) ; pd., parietal. 
ty, 
tp. 
Fic. 40.—SKULL OF AN ABORIGINAL AUSTRALIAN, in which the temporal bone is 
separated from the frontal merely by a long process of the alisphenoid (a.s.). 
10 per cent of the last named). This process is also often found 
in the lower Mammals. [The upper edge of the alisphenoid, above 
alluded to, may be not infrequently replaced by a distinct bone 
(the epipteric of Flower before mentioned—cf. p. 55, footnote, and 
