ORANGUTAN O77,

with his hands ‘alternately, and with great rapidity,
and not unlike the manner in which the natives
beat a drum, except that each hand made the
same number of strokes, and the strokes were in a
constant series, rising and falling from very soft
to very loud, and wice versd; and a number of these
runs followed one another during the whole time that
the voicé continued. Between the first and second
strokes the interval was slightly longer than between
the second and third, and so on. As the beating
increased in loudness the intervals shortened in a
corresponding degree, whereas in the diminuendo the
intervals lengthened as the beating softened, and the
author of the sounds seemed conscious of this fact.
I could not, however, trace any relation in time or
harmony between the music and the beating, except
that they usually began at the same time and ended
at the same time ; but the voice suddenly stopped at
the very climax of the sounds, whereas the beating
was stopped at any part of the scale. I have no
doubt that the gorilla sometimes beats his breast, and
he has been seen to do so in captivity ; but I do
not think it follows that he is confined to that.’
There are at least three living species of orang,
all of them found in Sumatra and Borneo, the one
generally known to us being Szmda satyrus. Orang
is the Malay for ‘man, and wtan, which is com-
monly coupled with it, is merely the Malay for ‘ of
the woods. The orang is distinguished from the
gorilla and chimpanzee in being a reddish animal,
and he also has eight bones in his wrist instead of
seven. His arms are long, and his knees turn out-