528 DISEASE IN WILD MAMMALS AND BIRDS 
this end all specimens upon receipt are put into separate 
cages suitable to their size and allowed to become accus- 
tomed to their surroundings for several days before 
attempt at temperature-taking is made. Mention has 
already been made of the experience and interest of the 
principal keeper; the regularity of records is an attest 
to his work. Daily three o'clock afternoon temperatures 
are taken first to accustom the animal to the matter, be- 
fore test records or tuberculin injections are made. 
The existence of pathological states undoubtedly 
affects normal temperature curves and tuberculin reac- 
tions. Gastroenteritis has the effect of increasing the 
whole level and of making irregular the midday and 
afternoon records. Respiratory tract disease cannot be 
said to have a very definite effect; its most frequent in- 
fluence seems to be to drive the night records lower so 
that there is a long fall between seven and eleven PM. and 
a long rise between seven and eleven AM. 
The Test. 
The preliminary rest of the new arrivals having passed 
daily three o'clock afternoon temperatures are taken un- 
til an even level is obtained; this requires usually four 
days but in very ner^-ous specimens it may be much 
longer. The afternoon temperature course pro\'ides not 
only a means of teaching the monkey what is coming but 
supplies us vnth. a high point record for comparison. 
When a new variety is received, a full normal twenty-four 
hour record is usually made. This preparatory routine 
being fulfilled, the animal is injected under the skin of the 
thigh or flank with freshly diluted mixed bovine and 
human tuberculin. 
The Dosage. 
Early trials with this substance revealed the fact that 
a dosage based upon the weight in comparison to man 
failed to elicit a definite response whereas if based upon 
