him in order to fool him, but Peter was not fooled. He felt both
ends of the hammer and used the flat end instead of the round end.

Showing his initiative during the tests, Peter got away from those
who were watching him and darted for a washstand, quickly turned
the faucet and put his mouth to the spigot and secured a drink
before he was snatched away by his trainers. He understood
language and followed instructions without signs. He was able to
say "mamma," and Doctor Witmer taught him in five minutes to give
the sound of "p." The most remarkable performance was making the
letter "w" on the blackboard, in which he imitated Doctor Witmer's
movements exactly, and reproduced a fair copy of the letter.

The last four paragraphs reproduced above have been copied from an
article which appeared in the Philadelphia _Public Ledger_ on
December 17, 1909.

Dr. Witmer declares that the study of this ape's mind is a subject
fit, not for the animal psychologist, but for the child
psychologist.

Suzette's Failure in Maternal Instinct. As a closing contribution
to our observations on the chimpanzee, I must record a tragic
failure in maternal instinct, as well as in general intelligence,
in a chimpanzee.

In 1919 our two fine eight-year old chimpanzees, Boma and Suzette,
were happily married. It was a genuine love match, and strictly
monogamous at that; for while big Fanny Chimp in the cage next
door to Boma loved Boma and openly courted him, he was