1 Jury, 1899.] QUEENSLAND AGRICULTURAL JOURNAL. eeu 
of the Melbourne University, and his report states that the results were negative 
in the case of the milk and lymph, but that typical tubercular structure and 
tubercle bacilli were found in the lesions. The negative result of the tuberculin 
testing of the cow, so far as her milk was concerned, was thus confirmed by. 
independent bacteriological examination. | 
To resume, it is to be observed that in the course of the somewhat limited 
inquiry, the results of which are given above, every animal that re-acted was 
proved to be tuberculous; and that, positively in the cases of two non-re-acting 
cows, and presumably in the case of the remaining 241 non-re-acting cows, no 
tuberculosis existed.* When tuberculin indicated that tuberculosis was present, 
tubercular lesions were found; and when tuberculin indicated that tuberculosis 
was not present, tuberculosis was not found. This result is in accordance with 
a vast amount of experience obtained in other countries ; and it may with confi- 
dence be said that there is substantial ground for the formulation of the axiom 
“Tuberculin cannot lie.” 
S. 8S. CAMERON, M.R.C.V.S., 
Veterinary Inspector. 
16th March, 1899. 
* The numbers 2 and 241 obtained at the time of writing the text of this report become, by 
reason of the facts set out on page 79 in a footnote, 4 and 239 respectively.—S.8.C. 
Tick Fever, 
OBSERVATIONS ON TICKS AND TICK FEVER AT THR 
INDOOROOPILLY EXPERIMENT STATION AND 
AT ST. HELENA. 
By C. J. POUND, F.R.M.S. 
Director of the Queensland Stock Institute. 
HISTORY OF THE TICKS AT INDOOROOPILLY. 
Tue first ticks in the Indooroopilly paddocks were discovered on the 14th 
November, 1898, on several uninoculated young steers (out of a lot of 12 
animals) just after arrival from the Rosewood district. It must not be over- 
looked, however, that ticks had been discovered on cattle and sheep in numerous 
places in and around Brisbane some months previous. to this ; and further, I 
may point out that the Indooroopilly paddocks are on the road along which 
hundreds of cattle and sheep pass from the Enoggera saleyards to the slaughter- 
yards at Moggill. 
From November last to the present time four distinct generations of ticks 
have been observed on the cattle. During this period no animal has been 
grossly infested with ticks. Although the animals are handled several times 
every day, and are extremely quiet, the largest number of mature ticks found 
at any time on any one animal (even on the most favourable parts—viz., under 
the forearm, inside the thigh, &c.), would not exceed 100, the explanation 
being :— 
(1) That the Ea: majority of the ticks, as they matured, were readily 
picked off by the fowls, which are continually following the cattle 
about, and ; 
(2) That, the vegetation being extremely sparse, quantities of the ova 
and larval ticks must have been destroyed by the action of the direct 
sun’s rays. : 
