14 
Indian Forest Records. 
[Vol. VI 
Diagram V.* 
The results obtained with Anticide, McBougalVs insecticide , Mort- 
ani and Burnettizine are giyen in Diagram V. They cover a period of 
from 2 years to years ; the results, therefore, cannot be said 
to be final. 
It will be seen that certain specimens were not laid down in the 
Anticide experiment, which is to be regretted, as it breaks the sequence 
of these experiments as a whole which, it must be remembered, were 
instituted primarily to determine the relative value of certain antiseptic? 
solutions, the durability of any individual timber being of secondary 
importance. 
The records given in Diagram V are tabulated below 
TABLE V. 
Treated. 
Untreated. 
Antiseptics with 
which the different 
species of timber were 
treated. 
Number of 
years under 
observation. 
Number 
origin¬ 
ally 
laid 
down. 
Number 
remain¬ 
ing. 
Average 
durability, 
in years. 
J Number 
1 origin¬ 
ally 
i laid 
down. 
Number 
remain¬ 
ing. 
Average 
durability, 
in years, 
Yrs. mos. 
Yrs. mos. 
Yrs. mos. 
Anticide . 
4 6 
6 
5 
4 1 ! 
1 
6 
0 
1 3 
McDougall’s insecticide 
3 8 
11 
9 
1 
3 7 
9 
2 
1 7 
Mort-ant . 
3 9 
11 
5 
2 10 
11 
5 
2 3 
Burnettizine 
2 0 
12 
8 
17 
12 
8 
1 8 
The results, as will be seen both from the Diagram and Table, are 
quite satisfactory in the case of Anticide , as though one out of six of the 
specimens has failed, the average life of the six untreated specimens was 
only one year and three months, while five of the treated specimens 
have already lasted four and a half years. Nine out of eleven specimens 
treated with McDougalVs insecticide remain after three years and eight 
months, as against two untreated specimens. Taking into consideration 
that, of the nine treated species remaining, five are for all intents and 
purposes sound, the results are fairly satisfactory. Mort-ant has given 
less favourable results than either of the two previous solutions ; five 
remain sound out of eleven treated specimens after three years and nine 
months, while the durability of the treated and untreated specimens is 
practically the same. The Burnettizine experiment has only been in 
progress two years, so no definite conclusion can be drawn ; the fact 
* This will be found in the pocket at the end of this publication. 
[ 144 ] 
