Part IV.] P. S. Pearson: Antiseptic Treatment of Timber. 65 
(iv) Notes on the behaviour of sleepers treated with Solignum 
and Liquid Fuel oil, after having been laid in the line. 
The Dipterocarp sleepers, treated with Solignum and Liquid Fuel , 
were laid down in June 1914, the Fine and Deodar sleepers in November 
of the same year, and the Terminalia sleepers in June 1915, so that not 
until a further period of 2 or 3 years has lapsed can anything approaching 
reliable results be expected. It is, however, necessary to place on record 
where and under what conditions, the sleepers have been laid. 
[ 195 ] 
