INTRODUCTION XV 
has helped him through many trying situations. His standard of 
values is very real and he has no use for the self-seeking careerist. 
To be a collector of animals and to know how to care for them 
in captivity means that one has to study their habits most care- 
fully in their natural haunts. It is because the author is a great field 
naturalist that he is also a great collector, and because he is a 
great collector and knows how to handle and acclimatize ani- 
mals to the artificial surroundings and substitute diets necessi- 
tated by captivity he is, above all, the right man to have the care 
of animals in captivity. Today, as I write these words, he starts 
on yet another adventure—as Superintendent of the Dublin Zoo— 
and I can think of no man more fitted for such a post. 
GEOFFREY VEVERS, F.R.C.S. 
W hipsnade, 
August ist, 1952 
