same age and intellectual caste as Rajah, developed a faculty for
mechanics and invention which not only challenged our admiration,
but also created much work for our carpenters. He discovered, or
invented, as you please, the lever as a mechanical force,--as fairly
and squarely as Archimedes discovered the principle of the screw.
Moreover, he delighted in the use of the new power thus acquired,
quite as much as the successful inventor usually does. At the same
time, two very bright chimpanzees of his own age, and with the
same opportunities, discovered nothing.

[Illustration caption: THUMB-PRINT OF AN ORANG-UTAN
A group of fourteen experts in the New York City Departement of
Criminal Records were unable to recognise this thumb print as
anything else than that of a man]

[Illustration caption: "RAJAH," THE ACTOR ORANG-UTAN
In three lessons he learned to ride a tricycle]

Dohong was of a reflective turn of mind, and never was entirely
willing to learn the things that his keepers sought to teach him.
To him, dining at a table was tiresomely dull, and the donning of
fashionable clothing was a frivolous pastime, On the other hand,
the interior of his cage, and his gymnastic appliances of ropes,
trapeze and horizontal bars, all interested him greatly. Every
square inch of surface, and every piece of material in his
apartment, was carefully investigated, many times over.

When three years old he discovered his own strength, and at first
he used it good-naturedly to hector his cage-mate, a female
chimpanzee smaller than himself. That, however, was of trifling