144 J. B. CLELAND. 
Another method to combat the plague has been to board 
in the stacks to a height of 4 or 5 feet, so that the falling 
loose ‘wheat would form a wall round the existing baes. 
This has the effect of driving the mice out of the stack, as 
they cannot live in the loose wheat. The dunnage and 
heaps of rubbish left in the station yards have also been 
‘fumigated with bisulphide of carbon with excellent results. 
Removing the wheat from the infested areas to depots 
outside the mouse-infected country has been adopted with 
success, as the mice do not seem to have crossed the Great 
Dividing Range. 
Victoria: The wheat stacks were enclosed with galvan- 
ised iron fencing, and the mice were captured in pits. 
South Australia: In those stacks which it was found pos- 
sible to enclose in gas-tight sheets, fumigation with hydro- 
eyanic acid gas proved effective in killing a large propor- 
ton of the mice in the stack, wherever the gas penetrated, 
thus saving the stacks from collapse. This was especially 
useful at large stacking depots. Enclosing stacks with gal- 
vanised iron barriers, and burying kerosene tins outside 
with the tops one inch above the ground-level, has proved 
effective in keeping the number of mice down. 
(9)LHvidence of Disease wm the Mice. 
New South Wales: In the latter part of the period men- 
tioned, say from well towards the end of July, disease 
is reported to have broken out in a few districts in the 
South, and also in the West—specimens forwarded were 
swollen and inflamed in the hind legs and tails; but there 
is no evidence that this has carried them off to any great 
extent. One reason advanced for this condition is that 
the disease has been brought about through wheat-eating, 
and this is borne out to a great extent by the number of 
birds losing the use of their legs after eating freely and 
constantly of the wheat. 
