+---------------------------------------------------------------------+ | Males | +-----------------------+---------------------+-----------------------+ | (10) | (17) | (10) | | Narrowest faces | Average faces (14.2)| Broadest faces | | (13.4 and below) | | (14.9 and above) | +----------+------------+---------+-----------+----------+------------+ | Face | Orbits | Face | Orbits | Face | Orbits | +----------+------------+---------+-----------+----------+------------+ | 13.30 | 3.96 | 14.20 | 4.01 | 15.11 | 4.17 | +==========+============+=========+===========+==========+============+ | Females | +-----------------------+---------------------+-----------------------+ | (10) | (14) | (10) | | Narrowest faces | Average faces (13.3)| Broadest faces | | (12.7 and below) | | (13.9 and above) | +----------+------------+---------+-----------+----------+------------+ | Face | Orbits | Face | Orbits | Face | Orbits | +----------+------------+---------+-----------+----------+------------+ | 12.57 | 3.74 | 13.30 | 3.88 | 14.09 | 3.98 | +----------+------------+---------+-----------+----------+------------+ PERCENTAGE RELATIONS OF ORBITS TO FACE +-----------------------+---------------------+-----------------------+ | _29.8_ | _28.4_ | _28.2_ | +=======================+=====================+=======================+ | _29.8_ | _29.2_ | _27.6_ | +-----------------------+---------------------+-----------------------+ Individual variation in the orbital index of the Eskimo is extensive, reaching from slightly below _80_ to well over _100_. It extends more or less over the whole Eskimo area, without conveying definite indication anywhere of either a mixture or of a special evolutionary tendency. Yet it occasions group differences that eventually might prove evolutionary, though they may merely represent the next or higher order of variability, namely, that of groups within a family. ORBITAL DIMENSIONS AND INDEX IN ESKIMO SKULLS