64 
Indian Forest Records. 
[Vol. III. 
Several reliable records are available as to the results of experiments 
made in India with this oil. The Secretary to the Government of Bengal, 
Public Works Department, reports on this antiseptic as follows : — 
“ Engineers of different circles of this Province were asked in 
August 1906 to try the preparation and submit a report of the result. 
It has been experimented on throughout the Province and the inference 
that may be drawn is that it is very useful in keeping away white-ants, 
but is not always entirely effective. - ” 
Another report is available of tests carried out by the Public Works 
Department in the United Provinces. The Under-Secretary of that 
Department reporting on the subject to the Government of India, 
states 
“ Experiments were made in various divisions of the Province 
where white-ants are prevalent. In one case the effect of the prepara¬ 
tion was tried on a portion of a ' SirkU ceiling which had many 
times been destroyed by white-ants, and it was found that the protection 
was perfect. In most cases, however, the experiment took the form of 
burying pieces of different kinds of wood which had been treated with 
Carbolineum along with pieces not so treated in the nests of white-ants. 
The pieces of wood were dug up after 3 months or more and in every 
case, except that of Cawnpore, it was found that Carbolineum had given 
complete protection, whilst the pieces which had not been treated with the 
preparation were destroyed . 33 
Another report comes from the Superintending Engineer, 3rd Circle, 
Punjab, in which details of six experiments are given, all of which 
proved successful. In conclusion he writes as follows : 
“ I personally think the solution is all that the manufacturers 
claim for it, and have unhesitatingly recommended it to 
every one I thought the solution would be useful to 33 . 
He further compares the cost of Avemrim Carbolineum with coal- 
tar as 9 annas per cent, for the former and 8 annas per cent, for the 
latter. The other records available are those of experiments made at 
the Eorest Research Institute, in which twelve different species (the 
same as those recorded above on which absorption tests were carried out) 
were given two coats of the solution at intervals of a week and placed 
upright in the ground together with untreated pieces of the same 
species, and kept under observation. The pieces have now been in the 
ground 16 months and none of the treated specimens have as yet shown 
( 137 ) 
