tiveness of the genital canal in women,
while at the same time they show that a certain amount of what we cannot
but regard as painful stimulation is craved by women, in order to heighten
tumescence and increase sexual pleasure, even though it can only by
procured by artificial methods. It is, of course, possible to argue that
in these cases we are not concerned with pain at all, but with a strong
stimulation that is felt as purely pleasurable. There can be no doubt,
however, that in the absence of sexual excitement this stimulation would
be felt as purely painful, and--in the light of our previous
discussion--we may, perhaps, fairly regard it as a painful stimulation
which is craved, not because it is itself pleasurable, but because it
heightens the highly pleasurable state of tumescence.

Borneo, the geographical center of the Indonesian world, appears
also to be the district in which these instruments are most
popular. The _ampallang, palang, kambion_, or _sprit-sail yard_,
as it is variously termed, is a little rod of bone or metal
nearly two inches in length, rounded at the ends, and used by the
Kyans and Dyaks of Borneo. Before coitus it is inserted into a
transverse orifice in the penis, made by a painful and somewhat
dangerous operation and kept open by a quill. Two or more of
these instruments are occasionally worn. Sometimes little brushes
are attached to each end of the instrument. Another instrument,
used by the Dyaks, but said to have been borrowed from the
Malays, is the _palang anus_, which is a ring or collar of
plaited palm-fiber, furnished with a pair of stiffish horns of
the same wiry material; it is worn on the neck of the glans and
fits tight to the skin so as not to slip off. (Brooke Low, "The
Natives of Borneo," _Journal of the Anthropological Institute_,
August and November, 1892, p. 45; the _ampallang_ and similar
instruments are described by Ploss and Bartels, _Das Weib_, Bd.
i, chapter xvii; also in _Untrodden Fields of Anthropology_, by a
French army surgeon, 1898, vol. ii, pp. 135-141; also Mantegazza,
_Gli Amori degli Uomini_, French translation, p. 83 et seq.)
Riedel informed Miklucho-Macleay that in the Celebes the Alfurus
fasten the eyelids of goats with the eyelashes round the corona
of the glans penis, and in Java a piece of goatskin is used in a
similar way, so as to form a hairy sheath