Part IY-] R. S. Pearson: Antiseptic Treatment of Timber. 41 
(c) Cost of treating 400 Terminalia tomentosa metre-gauge sleepers. 
No detailed figures were kept as to the cost of treating these sleepers> 
though the total cost for each operation is available :— 
Rs. 
A. 
p 
Felling and extraction ...... 
300 
0 
0 
Cost of conversion ....... 
400 
0 
0 
Cost of oil ........ 
226 
0 
0 
5 per cent, on cost of plant ..... 
10 
0 
0 
Total 
936 
0 
0 
s cost of treating a metre-gauge Terminalia 
tomentosa sleeper 
conies to Rs. 2-5-5, exclusive of royalty on the timber. 
(iv) Notes on the behaviour of sleepers treated with Avenariut 
Carbolineum oil, after having been laid in the line. 
The sleepers were handed over to and laid down by the Railway 
Authorities from 2J to 3J years ago, so that an insufficient period of 
time has elapsed to enable definite conclusions being drawn from these 
experiments. The results are, however, of sufficient interest to justify 
their being recorded, while by doing so the conditions under which, and 
localities where, these sleepers have been laid down are placed on 
record. 
i m ] 
