CATTLE TICK. 
The Cattle Tick Sweeps Onward in Australia and 
Inflicts Heavy Losses. 
IN THE UNITED STATES TICK IS BEING DRIVEN BACK. 
The two maps which are here displayed require little by way of 
explanation. The lightly-shaded portion of the one indicates the area 
in the United States infested with the cattle tick, and the darkly-shaded 
portion of the other shows the area of infestation in Australia. The 
point of interest which these outlines emphasize is that in the United 
States the frontier of the cattle enemy is being steadily pushed back, 
while in Australia it is being steadily pushed forward. Within ten 
vyears on the one hand a huge area has been freed from the pest, while 
on the other huge areas have been infested. 
Yyer 
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Apretrcnirertes tripe ane LEE 
MAP OF TICK-INFESTED AREAS OF AUSTRALIA. 
When the cattle tick was introduced into Australia is not definitely 
‘known, Attention appears to have been first directed to the existence 
of the trouble by the mortality that occurred in a mob of cattle (intro- 
duced from Queensland) at Glencoe, about 100 miles south-east from 
‘Port Darwin, about the year. 1880-81. From this centre the tick has 
evidently spread, until now it has taken possession of the littoral from 
the. Tweed Heads (N.S.W.) to Wyndham (W.A.), and penetrated 
hundreds of miles inland. Year by year it goes merrily marching on, 
invading new territory, and inflicting serious losses. 
139 
