of all the feet together about twelve square inches. As the
extremities of the toes have dilated discs for adhesion, showing
the creature to be a true tree frog, it is difficult to imagine
that this immense membrane of the toes can be for the purpose of
swimming only, and the account of the Chinaman, that it flew down
from the tree, becomes more credible. This is, I believe, the
first instance known of a "flying frog," and it is very
interesting to Darwinians as showing that the variability of the
toes which have been already modified for purposes of swimming
and adhesive climbing, have been taken advantage of to enable an
allied species to pass through the air like the flying lizard. It
would appear to be a new species of the genus Rhacophorus, which
consists of several frogs of a much smaller size than this, and
having the webs of the toes less developed.

During my stay in Borneo I had no hunter to shoot for me
regularly, and, being myself fully occupied with insects, I did
not succeed in obtaining a very good collection of the birds or
Mammalia, many of which, however, are well known, being identical
with species found in Malacca. Among the Mammalia were five
squirrels,and two tigercats--the Gymnurus Rafesii, which looks
like a cross between a pig and a polecat, and the Cynogale
Bennetti--a rare, otter-like animal, with very broad muzzle
clothed with long bristles.

One of my chief objects in coming to stay at Simunjon was to see
the Orangutan (or great man-like ape of Borneo) in his native
haunts, to study his habits, and obtain good specimens of the
different varieties and species of both sexes, and of the adult
and young animals. In all these objects I succeeded beyond my