The Apaches of Arizona, preminent even among red men for atrocious cruelty, are an offshoot from the Athabaskan stock.
Their dialect is the softest and most copious of the Athabaskan tongues.
The Athabaskan languages form as clearly unified, as structurally specialized, a group as any that I know of.
Now as these last are Athabaskan, there must have been displacement.
Eskimo characteristics appear in the Athabaskan, Athabaskan in the Koluch forms of speech.
Some of them were half wolf—creatures that were the result of inter-breeding on the part of Athabaskan Indians.
As a general rule, the southern limit of the Eskimo is the northern limit of the Athabaskan area.
All the Athabaskan languages or dialects are mutually intelligible.
In the same parts the Athabaskan forms of speech differ most from each other.
The water-system in question forms the centre of the great Athabaskan area—the centre, but not the whole.