THE SPEECH OF MONKEYS 247 
many sounds in which no difference is detected by 
our ears. He deserves every success in his new 
experiments, though the effect of the latest has been 
to diminish rather than to increase the range of the 
monkey vocabulary. 
The later experiments with the larger anthropoid 
apes, from whose deliberate utterances better results 
might be expected than from the volatile chatter of 
the small monkeys, do not seem to have given much 
additional information. Mr. Garner’s expedition to 
Western Africa, in the hope of inducing wild monkeys 
to answer the sounds which he had succeeded in learn- 
ing from the tame ones, ended as such an enterprise 
might have been expected to end — in failure. Perhaps 
the whole inquiry may lead to the conclusion that we 
know no more now of monkey speech than we did 
before. But in any case it was a hopeful and ingenious 
experiment, and without boldness and enterprise fresh 
knowledge comes slowly. 
