ANTHROPOID APES 287 
going to work. It would of course be fatal with such highly 
organised creatures to endeavour to educate them by general 
principles alone. One ape differs very much from another, 
and the peculiarities of each have to be carefully watched and 
made the most of. It is no less necessary for a trainer to bear 
in mind the idiosyncrasies of the animals which he has to deal 
with, than it is for a human teacher to take note of the idiosyn- 
Gorillas suffering from home-sickness. 
crasies of his pupils. Above all things, tact and patience are 
necessary in a high degree. I am hoping. before long to be 
able to exhibit such educational results in my apes as have 
never been achieved or even thought possible before. 
In order to keep the great apes in sound health, it is ne- 
cessary to provide them with plenty of society, either of their 
own species or of some other. In the case of all animals in 
captivity, it is of the first importance to take measures for 
combating the tedium from which they would otherwise suffer. 
