Part II.] 
Pearson: Antiseptic Treatment of Timber, 
103 
Process. 
Species. 
Total 
cost of 
treating 
per B. G. 
sleeper. 
Remarks. 
Avenauius Carboli- 
neum Oil — contd . 
Dipterocarpus tuber- 
culatus “In” wood— 
# a. p. 
1 
Results of laboratory 
experiments, calcula¬ 
(ii) after 2 hours’ im¬ 
mersion. 
0 9 1 
ted on Indian prices. 
They are probably 
somewhat high and 
(iii) after 3 hours’ im¬ 
mersion. 
0 17 1 
j would be reduced if 
work was done on a 
1 large scale. 
1 
1 
Averge cost of treat* | 
ing twelve soft to I 
hard species of 
timber. 
0 8 6 
j 
JODELITE 
Pinus excelsa (Kail) 
Pterocarpus macro¬ 
carpus (Burman 
Padauk). 
Dipterocarpus tuber- 
culatus (“In” wood). 
0 6 7 
0 5 0 
0 5 0 
- Ditto. 
Average cost of treat¬ 
ing twelve soft to 
hard species of 
timber. 
0 10 8 
■ 
J 
Atlas solution 
Pinus excelsa (Kail) 
1 4 5 
Results of laboratory 
Pterocarpus macro¬ 
carpus (Burman 
Padauk). 
0 4 0 
experiments. In this 
case the cost of treat¬ 
ing soft woods is 
y generally excessive, 
Dipterocarpus tuber- 
culatus (“In” 
wood). 
0 4 7 
while the cost of 
treatment of hard 
woods is less than in 
j the case of tar oils. 
Average cost of treat¬ 
ing twelve soft to 
hard species of 
timber. 
0 12 4 
J 
( 176 ) 
