100 
A close watch should always be kept on iand that has 
been cleared of timber and if a tree is seen to be attacked, 
Xv endeavour should be made to discover the source of 
infection which will invariably be found to be a buried root 
or stump from which the termites make their way m search 
of food by means of tunnels. These may be found at a 
denth of 6" to 3' below the surface of the ground. In flat 
land I have never found them below the sub soil water level, 
which of eourse is regulated by the efficiency of the dram- 
age system. 
These tunnels are as a rule, (as Mr. Pratt says) su - 
ficiently large to admit the introduction of an ordinary mi- 
croscope slide though sometimes smaller, they are p . 
smooth and are lined with a red substance probably he 
their masters When the direction of a tunnel is lost it is 
very dXuTto pick, it up again. I have ound the bu« 
means of not losing it, is to use a piece of thin ^exdde wire 
• 4$ "Cts— S. % It T 
Wel sav two feet and should be examined the next day 
£ it aJ wm often be found that the termites have made 
their way across by means of a mud casing, thus deter- 
mining the direction of attack. 
Tt is tedious matter at the best to follow up these tun- 
much time and expense. 
At first I gave rewards for the Queens and have collect- 
in order to find the Queen cells. 
