Part IV.] R. S. Pearson: Antiseptic Treatment of Timber . 39 
(c) Treatment of Terminalia tomentosa metre-gauge sleepers. 
No record is available as to the way in wbicb these sleepers were 
treated. All that is known is that they were treated with hot 
Avenarius Carbolineum oil under the direction of Mr. Copleston, Divi¬ 
sional Forest Officer, North Division, Kanara, Bombay Presidency. 
(in) Cost of treatment. 
(a) Cost of treating 326 Pinus longifolia and 400 P. excelsa broad 
gauge sleepers. 
The cost of landing treated sleepers on a railway depends on the 
locality from which they are obtained, the labour market, the amount 
of oil absorbed by the timber, its cost, the facilities for handling tho 
sleepers and the cost of the plant. It follows that the cost will vary 
from locality to locality, so that the figures given below are only appli¬ 
cable to the place at which the experiment was carried out. Royalty 
charges on the timber are excluded from the calculations, the figures are 
.actuals, except that the cost of slotting, numbering and similar charges, 
which only occur in experimental work, have been omitted, while 5 
per cent, of the cost of the plant has been included. 
1. Cost of felling and converting 726 Pinus longifolia 
and P. excelsa broad gauge sleepers 
2. Cost of rafting the above to Jagadhri 
o ( Cost of 2,789 lbs. of Avenarius Carbolineum oil 
‘ } Cost of freight on above oil . . .. . 
4. Coolie wages for handling and treating sleepers 
5. 5 per cent, on Rs. 331, the cost of tank . 
6. 5 per cent, on Rs. 100, cost of ropes, pulleys, etc. 
7. Miscellaneous charges for fuel, etc. 
8 To 10 per c?nt. loss of oil due to leakage, evaporation, 
etc.. . 40 0 0 
Total . 1,421 0 0 
From the above figures it will be seen that the cost of landing a 
treated broad gauge Pine sleeper on rail, containing 3*84 lbs. of Avenarius 
Carbolineum oil, amounts to Re. 1-15-6, of which the cost of treatment 
comes to 12 annas per sleeper. Pinus longifolia broad gauge sleepers 
nan be purchased at Jagadhri in large numbers for Rs. ,3-0-0 each ; adding 
12 annas for treatment and 4 annas profit for doing so, the cost of deli¬ 
vering treated sleepers on rail, working on a commercial scale, comes to 
Rs. 4-0-0 per sleeper. Even taking into consideration the high grade 
quality of Avenarius Carbolineum oil, 3*8 lbs. per sleeper is an extremely 
small amount of oil to effectively protect the timber, so that it would, in 
[ 109 ] 
Rs. A. P. 
786 0 0 
83 0 0 
403 0 0 
34 0 0 
45 0 0 
17 0 0 
5 0 0 
5 0 0 
