40 



BULLETIN 510^ U= S. DEPARTMENT OF AGEICULTUEE. 



ing process consists merely in the immersion of the timber in an 

 open wood or concrete tank containing a solution of mercuric chlorid. 

 An}^ 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 by 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- 

 dustrJ^ 



BRANDING STRUCTURAL 

 TIMBER. 



The discussion now leads 



Fig. 41. — Wagon loaded with fragments of lumber 

 to be hauled away. This is the highly com- 

 mendable practice by which one lumber company ^g ^q ^ Consideration of the 

 keeps its yard clear of dfibris. , , » , , . 



advantages oi 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 longleaf pine for export, 

 but the practice is very little followed for the interior tr^cle. 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. 



