+-----------------------+---------------------+-----------------------+
| _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.