----------------+---------------------------+---------------------------
| Males | Females
+-------+---------+---------+-------+---------+---------
| South-| | North | South-| | North
| and |Northwest| and | and |Northwest| and
|midwest| |northeast|midwest| |northeast
----------------+-------+---------+---------+-------+---------+---------
Groups | (13) | (5) | (6) | (13) | (5) | (6)
Facial angle | 68 | 69 | 70 | 67.5 | 69 | 70
Alveolar angle | 55 | 56 | 55 | 54 | 55 | 54.5
----------------+-------+---------+---------+-------+---------+---------
Individual group differences in the facial and alveolar angle are
moderate, yet evidently not negligible. (See next table.) The most
prognathic, especially in the subnasal region, are the skulls from
Nelson Island. A marked alveolar slant is also present in the Pilot
Station Yukon group, and in Greenland. The least prognathic are
the St. Michael Islanders, the Point Hope people, and those from
Southampton Island. St. Lawrence stands once more near the middle of
the southwesterners and midwesterners, and there are to be seen the
principal old relations.
The main points shown by the above conditions are the group
variability, particularly in the southwest and midwest; the tendency,
on the whole, toward a slightly greater prognathy, both facial and
alveolar, in this same area; and the evidence that the alveolar slant
has some individuality.