T20 
THE ANTIQUITY OF MAN 
elsewhere — in Croatia. Probably, too, the Gibraltar skull 
is that of a woman. We are familiar with the sexual 
differences which distinguish the average modern man 
from the average woman. Our knowledge is founded 
on the study of hundreds of individuals. When a totally 
new form of mankind is discovered, we cannot foretell 
the manner or the degree of sexual differentiation. Hence 
Fig. 42. — Section of the strata at La Quina, the strata removed during 
excavations being represented by stippled lines (Dr Henri Martin). 
the uncertainty as regards the sex of the individual 
represented by the La Quina skeleton. The skull is 
long, 202 mm. ; rather narrow in comparison with the 
length, 137 mm., giving a heaci index of 67.^ The 
eyebrow ridges are as greatly and prominently developed 
as in male skulls, and such is not the case in skulls of 
modern women. The jaws of the La Quina woman are 
strong and the teeth big. The bones of the vault of the 
^ For a full account of the La Quina skeleton and its discovery, see 
account by Dr Henri Martin, Revue Scie7itifique^ '912, p. 49. 
