520 DISEASE IN WILD MAMMALS AND BIRDS 
experiment and its practical application than this work, 
which is condensed in the succeeding paragraphs. (2) 
The Temperature or Monkeys. 
The success of the tuberculin test in the lower animals 
as in man depends chiefly upon the alterations in tempera- 
ture following the injection of the toxin. It is generally 
adm.itted to-day that a healthy animal 's temperature will 
not be affected by the introduction of tliis material. There 
are in addition changes in the pulse and respiration rate 
and in the physical signs but these are detected with 
difficulty and are much less definite than thermometric 
records. The first essential was therefore a thorough 
familiarity mth the normal temperature of the monkey, 
a requirement which met with considerable difficulty from 
the beginning since the earliest observations revealed puz- 
zling irregularities. This necessitated the establishment 
of certain regulations of technique which, after the pre- 
liminary tests, have been found satisfactory enough to 
continue until the present day. All monkeys are received 
in the quarantine rooms of the laboratory where they are 
observ'ed by the officials of the Garden and of the labora- 
tory and there they remain in separate cages until passed, 
as free from tuberculosis, to the exhibition house. 
The handling of monkeys for the purpose of taking 
temperatures is a matter of no small importance since 
excitement will quite definitely increase the registration. 
We have been fortunate enough to have in charge of this 
work since its inception the same man, Keeper McCrosson, 
who is thoroughly experienced in the care of these beasts 
and who can catch and hold them with a minimum of dis- 
turbance. To him and to the interested laboratory helpers 
much credit is due. Small specimens like capucins and 
spider monkeys are caught with the gloved hand or with 
the protection of a piece of heavy cloth. Larger specimens 
may be caught in a net while strong monkeys are fitted 
(2) White and Fox, Archives of Internal Medicine, 1909, Vol. IV, 
p. 517. 
