27 
PART II. 
Tuberculosis. 
The tuberculin test has been applied to twenty-two 
new arrivals and twenty times, as retests, to fifteen other 
animals. Four of the first group, giving questionable 
temperatures and being in poor condition, were sacrificed; 
tuberculosis was not found. The presence of tuberculosis 
in new arrivals is decidedly less than it was in former 
years but no relaxation in our quarantine and testing 
methods has been permitted. We have, however, to 
report a death from this disease in the exhibition cages, 
the second in five years and nine months. This monkey, 
Grivet No. 20, was received in 1916, passed the first 
test and the retest of 1918. At the third test in 1920, 
his temperature was not quite satisfactory and he was 
placed in a separate outside cage. He was brought in- 
doors because of the cold and, because it was desired 
to include him with others in one cage, another test was 
given; this he passed with a fairly good, or at least not 
suspicious, chart. He remained on exhibition six months 
when he died from caseous tuberculosis of the lung with 
an acute general miliary form. This could have been 
contracted and have developed within the six months 
since the tuberculin test. The three monkeys in the 
same cage were tested at once, held in the quarantine 
room and retested after four months. Six months have 
elapsed since the death of the tuberculous animal and 
two since the last test; these animals seem in good con- 
dition. One more death occurred in mammals from this 
disease, a female Kamchatkan Bear in the collection 
eight years. The disease was of long standing and was 
partly fibrotic although cavity formation existed in the 
lung. 
The incidence of tuberculosis amongst the birds takes 
again a decline, there being 24 against 29 for 1921 and 
