40 
BULLETIN 510, TJ. S. DEPARTMENT OF AGBICULTUBE. 
ing process consists merely in the immersion of the timber in an 
open wood or concrete tank containing a solution of mercuric chlorid. 
Any of the other water-soluble salts could be applied in the same 
way. Creosotes and carbolineums can also be applied in this manner. 
"While in many cases the amount of preservative which can be in- 
jected in this way would not be sufficient to fully protect timber in 
direct contact with the ground, in most cases where treatment is 
indicated in buildings it would be sufficient. Such treatments could 
be carried out by any one at any point, and the local treatment of 
timber would probably be cheaper than when done at a distant cen- 
tralized plant. In the East, such a local method of treatment is 
being carried out by at 
least two lumber dealers 
within the writer's ac- 
quaintance. 
- If treated timber were 
put on the local markets as 
a standardized product, as 
readily available to the 
man who needs 100 feet as 
to him who uses it by the 
100,000 feet, the favorable 
results experienced hj the 
public in the use of the 
treated product would in 
the course of a few years 
create a demand and be a 
stepping stone toward a 
more profitable lumber in- 
dustry. 
BRANDING STRUCTURAL 
TIMBER. 
Fig. 41. — Wagon loaded with fragments of lumber . 
to be hauled away. This is the highly com- lh© QlSCUSSlOn IlOW leads 
mendable practice by which one lumber company us to a Consideration of the 
keeps its yard clear of debris. , „ , , . 
advantages ol branding 
timber in order to safeguard both the reputable timber producer 
and the consumer. Such a practice is of particular value in the 
case of dimension timbers where a standardized uniform product, 
graded particularly on strength and durability, must be supplied. It 
is customary at the present time to so brand longieaf pine for export, 
but the practice is very little followed for the interior trade. Some 
few retailers stencil their name or brand on certain stock, but this is 
with them more a matter of advertising than a guaranty of quality, 
