Mt. Albert Edward, and whose south-eastern apex is Mt. Scratchley. It
includes the valley of the Aduala river and its streams (except those
flowing into it from the north in the region of the western apex of the
triangle) within its northern boundary, and the valley of the upper
Vanapa river and its rivers and streams in the neighbourhood of its
eastern boundary; but this eastern boundary has been found to extend
also so as to include the upper valley of the river Chirima. How far
the area extends to the south or south-west of the triangle above
mentioned appears to be uncertain.

The linguistic area to the north of the Mafulu or Fuyuge people is
that of the Ambo people, who are somewhat similar in appearance to
the Mafulu, and whose language is also Papuan, and, though differing
from the Mafulu language, is, I was told, somewhat similar to it in
grammatical construction and as regards a few of its words. The area
to the west is that of the Kuni people, whose language is Melanesian,
but whose ordinary modes of life are, I was informed, more like those
of the Mafulu than are those of the Papuan-speaking Ambo. The areas
to the east and south cannot be so definitely stated, but are dealt
with below.

As regards these Ambo people I may, in view of divergences of names
which appear in maps, explain that Ambo is a contraction of Ambore,
and is the name given to the people by their Mafulu neighbours, whilst
Afoa is the name given to them by the Kuni people, and is adopted
in the Geographical Society's map. [3] As regards the Kuni people,
their name is the one adopted by themselves.

Concerning the boundaries of the Fuyuge linguistic area as above
indicated, and the people whose districts adjoin that area, I propose