206 
from febrile attacks — 5 (or 50 per cent of them) yielding conclusive 
evidence of infection by M. melitensis. 
In Report No. 5 of the commission is an article by Major Horroks 
on Mediterranean fever in Gibraltar. The facts there detailed, taken 
with the curve showing the relation of the number of goats in 
L 
\ 
\ 
1 
V 
\ 
V 
\ 
V 
i 
» 
r 
\ 
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/ \ 
V 
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V 
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X 
* > 
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Vj. 
1884 ’85 *86 ’87 ’88 ’89 '90 »9l '9Z ’93 ’94 ’95 ’96 ’97 ’98 ’99 l900’0) '02 ’03 ’04 ’05 
= No . of goats* Each square equals 80 goats. 
= Malta fever. " ” " 40 cases. 
Gibraltar to the number of cases of Malta fever, is particularly 
interesting and suggestive. With the reduction in the number of 
goats in Gibraltar there was also a decrease in the number of cases 
of Malta fever, so that finally when the number of goats had de- 
creased to about 200 in 1905, Malta fever has practically disappeared. 
