the enjoyment of the killing; in the pursuit of human victims they
become possessed by a furious excitement that drives them on to acts
of the most heartless treachery and the most brutal ferocity.

All the Sea Dayaks speak one language, with but slight local
diversities of dialect. It is extremely simple, being almost devoid
of inflections, and of very simple grammatical structure, relying
largely on intonation. It is closely allied to Malay.

(2) The Kayans are widely distributed throughout central Borneo, and
are to be found in large villages situated on the middle reaches of
all the principal rivers with the exception of those that run to the
north coast. They occupy in the main a zone dividing the districts
of the lower reaches of the rivers from the central highlands from
which all the rivers flow.

They are a warlike people, but less truculent than the Sea Dayaks,
more staid and conservative and religious, and less sociable. They
do not wantonly enter into quarrels; they respect and obey their
chiefs. They are equally industrious with the Sea Dayaks, and though
somewhat slow and heavy in both mind and body, they are more skilled
in the handicrafts than any of the other peoples. They also speak
one language, which presents even less local diversity than the Sea
Dayak language.

(3) The Kenyahs predominate greatly in the highlands a little north of
the centre of Borneo where all the large rivers have their sources;
but they are found also in widely scattered villages throughout the
Kayan areas. In all respects they show closer affinities with the
Kayans than with the Sea Dayaks; as regards custom and mode of life