32 JOURNAL OF THE 



or less being used accordiDg to the purposes for which lumber is 

 to be used. Twelve pounds of oil per cubic foot increases the cost 

 over crude timber about 100 per cent., with an additional 5 per 

 cent, for each additional pound of oil per cubic foot. The advan- 

 tages over other processes is in the economy and a more thorough 

 impregnation of wood with creosote. 



The superiority of woo<l preserved by wood creosote oil has 

 been conceded bv Enp^lish and American contractors. Besides 

 being an excellent mechanical packing, it is a reliable germicide 

 and preservative, and its odor is exceedingly offensive to all 

 insects, especially the teredo. It is supposed that sufficient quan- 

 tities of tarry acids are present to coagulate the albumen of the 

 wood, thus rendering fermentation less liable to occur. The 

 heavy oils resist the action of water and cannot be washed from 

 the pores of the wood. Creosoted wood can be used in any and 

 all circumstances, and without material injury to carpenter's 

 tools. It is several degrees harder thJin ordinary timber, and 

 hardens as it gets older. It is recommended particularly for use 

 as sills, cross-ties, piles, wharfs, spars, decks and in every place 

 where the conditions are most favorable to the decay of crude 

 timbers — where, in tide-water countries, the piles are subjected 

 to alternate drying and wetting, in tropical countries, and 

 wherever the ravages of insects are greatest. Lai'ge quantities 

 of it were sold to the Panama Canal Co. It has been sold as 

 high north as Novia Scotia, and south as far as Rio, and the 

 severest tests applied, in none of which has it failed. 



By the rapidly increasing demand for it among all classes of 

 builders and contractors, we are assured that it is to be one of 

 our largest and most ijuportant industries, and our Southern 

 pines will have been increased greatly in value. 



