66 
Indian Forest Records . 
[Vol. III. 
Summary. 
From what has been said in the foregoing paragraphs, it will be seen 
that Avenarius Carbolinenm has many good qualities as an antiseptic. 
The past records are favourable and further the necessary apparatus 
required for treating the timber is cheap, easily moved and requires no 
skilled labour to work it. The most important consideration, however, is 
that the oil is not readily washed out by excessive moisture, and that it 
has a very high boiling point, and therefore is not liable to evaporation 
in a hot climate. 
The cost of treatment is somewhat high, though by varying the 
period of immersion it is possible to regulate the quantity of the oil 
absorbed and thus adjust the cost within working limits. Whether the 
amount of the solution taken up under these conditions is sufficient to 
protect the timber effectually can only be proved by actual trials, carried 
out over a considerable period of time. Definite proposals as to future 
experiments to be made with the preservative are given in Chapter IY, 
while 2,000 sleepers of five different species are now being treated with 
.this oil, and laid down in different localities. 
(5) JODELITE. 
J ODELITE. 
A patent solution known as Jodelite* has been for some years on the 
market and has attracted considerable attention in various parts of the 
world. Its constituents are unknown, but from its appearance it is no 
doubt largely composed of the heavier Creosote oils. 
Method of Treatment. 
Like Avenarius Carbolinenm it is either applied with a wire brush or 
by the immersion of the timber in the solution. Directions for its use 
state that two coats of the solution are required if applied with the brush, 
and that the period of immersion, in the case of treatment by the Open 
Tank method, should be 10 to 40 minutes according to the density of 
the timber; in both cases the solution should be heated to 82° to 94°C. 
* The solution can be procured from Joseph Dee & Sons, 5 Cross Street, Manches¬ 
ter, England, the cost landed in India being R2-I1 per gallon (1 gallon of the solu¬ 
tion weighs 10 lbs. 14^ oz.) 
.( 139 ) 
