His intelligence was very great; and Müller remarks that, though the
faculties of the Orang have been estimated too highly, yet Cuvier, had
he seen this specimen, would not have considered its intelligence to
be only a little higher than that of a dog.

His hearing was very acute, but the sense of vision seemed to be less
perfect. The under lip was the great organ of touch, and played a very
important part in drinking, being thrust out like a trough, so as
either to catch the falling rain or to receive the contents of the
half cocoanut shell full of water with which the Orang was supplied,
and which, in drinking, he poured into the trough thus formed.

In Borneo, the Orang-Utan of the Malays goes by the name of "_Mias_"
among the Dyaks, who distinguish several kinds as _Mias Pappan_, or
_Zimo_, _Mias Kassu_, and _Mias Rambi_. Whether these are distinct
species, however, or whether they are mere races, and how far any of
them are identical with the Sumatran Orang, as Mr. Wallace thinks the
Mias Pappan to be, are problems which are at present undecided; and
the variability of these great apes is so extensive that the
settlement of the question is a matter of great difficulty. Of the
form called "Mias Pappan," Mr. Wallace observes: "It is known by its
large size, and by the lateral expansion of the face into fatty
protuberances, or ridges, over the temporal muscles, which have been
mistermed callosites, as they are perfectly soft, smooth, and
flexible. Five of this form, measured by me, varied only from 4 feet
1 inch to 4 feet 2 inches in height, from the heel to the crown of the
head, the girth of the body from 3 feet to 3 feet 7½ inches, and the
extent of the outstretched arms from 7 feet 2 inches to 7 feet
6 inches; the width of the face from 10 to 13¼ inches. The color and
length of the hair varied in different individuals, and in different