excrescences, like fatty tumours. The Chimpanzees have arms which
reach below the knees; they have large thumbs and great toes, their
hands are longer than their feet; and their hair is black, while the
skin of the face is pale. The Gorilla, lastly, has arms which reach to
the middle of the leg, large thumbs and great toes, feet longer than
the hands, a black face, and dark-grey or dun hair.

For the purpose which I have at present in view, it is unnecessary that
I should enter into any further minutiae respecting the distinctive
characters of the genera and species into which these man-like Apes are
divided by naturalists. Suffice it to say, that the Orangs and the
Gibbons constitute the distinct genera, 'Simia' and 'Hylobates'; while
the Chimpanzees and Gorillas are by some regarded simply as distinct
species of one genus, 'Troglodytes'; by others as distinct
genera--'Troglodytes' being reserved for the Chimpanzees, and 'Gorilla'
for the Enge-ena or Pongo.

Sound knowledge respecting the habits and mode of life of the man-like
Apes has been even more difficult of attainment than correct
information regarding their structure.

Once in a generation, a Wallace may be found physically, mentally, and
morally qualified to wander unscathed through the tropical wilds of
America and of Asia; to form magnificent collections as he wanders; and
withal to think out sagaciously the conclusions suggested by his
collections: but, to the ordinary explorer or collector, the dense
forests of equatorial Asia and Africa, which constitute the favourite
habitation of the Orang, the Chimpanzee, and the Gorilla, present
difficulties of no ordinary magnitude: and the man who risks his life by
even a short visit to the malarious shores of those regions may well be