Part II.] Pearson: Antiseptic Treatment of Timber 
5 
tioned Bowellizing , in which a saccharine solution is used, Jodelile, 
Solignum , Atlas, Bellit, Bellitol, Microsol , Hylinit, Gresoyle , Green-oil , 
Mort-ant, Anthrol , and a compound of Zinc-chloride and Sodium- 
fluoride. 
Relative Value of the Pneumatic and Vulcanizing Processes 
AS AGAINST THE OPEN TANK METHOD. 
Before discussing the relative merits of any one of the above methods 
of treating timber it is necessary to consider the value, with reference 
to India, of the Pneumatic and Vulcanizing processes as compared with 
Open Tank or Brush Methods. 
In the case of Creosoting, Haskinizing or Riipingizing timber a 
fairly extensive plant is necessary and therefore a corresponding outlay 
of capital. This being the case, it is only possible to have a limited 
number of centres scattered over the country at which timber can be 
treated. Such centres would either be situated in a convenient place 
near extensive forest areas, or in localities where timber is in large 
demand and to which large quantities are imported. In localities 
where it is contemplated to treat railway sleepers, it might be possible 
to erect a plant in the vicinity of the forests and at the same time 
not far from the railway ; in such a case the difficulty of either 
railing the timber to be treated over a long lead or of transporting the 
treated timber a long distance to the rail, would be overcome. In India 
proper it not infrequently occurs that the forests are scattered over large 
areas and that the work of extraction moves forward through the 
forest, so that the same difficulty which has been experienced with non¬ 
portable sawmills for converting the timber, applies with even more 
force to the more extensive and heavier plant necessary for treating 
timber by Pneumatic or Hydrostatic injection. 
Without a doubt convenient centres could be found where the supply 
of timber is naturally concentrated in very large quantities on a rail¬ 
way and where an extensive plant of the sort contemplated might be 
worked. In corroboration of such an assertion such places as the nearest 
station below the junction of the Tons and Jumna rivers in the United 
Provinces might be cited, or again a timber centre such as Kallai near 
Calicut in the Malabar, points on the Sutlej and Bias River in the 
Punjab, and Mandalay or Rangoon in Burma. Nevertheless, the diffi¬ 
culties to be overcome in contemplating such schemes are considerable, 
though the process in itself may be excellent. 
( 78 ) 
