NATIONAL FOREST RESOURCES 185 



struction of fire lines ; the manner of scaling timber ; 

 the manner of piling and the location of piles of 

 material to be scaled; the definition of a merchant- 

 able log; the utilization of tops; the manner or 

 method of logging to be used; the location of im- 

 provements ; the use of timber for the construction 

 of improvements; the disposal of improvements at 

 the termination of the contract ; where cutting is to 

 begin and how fast it is to proceed ; the percentage 

 of merchantable timber to be reserved in marking; 

 and other special clauses recommended by the Bu- 

 reau of Entomology for the sale of insect infested 

 timber. 



That the Forest Service timber sale policy and 

 the various timber sale clauses have met with the 

 approval of the lumbermen and the timber buyers 

 of the Western States is attested by the fact that in 

 the last ten years (from July 1, 1907, to June 30, 

 1917) there have been nearly 75,000 purchasers of 

 National Forest timber and that between these two 

 dates the annual number of timber sales has in- 

 creased from 5,062 in the fiscal year 1908 to 11,608 

 in the fiscal year 1917. No better evidence could 

 be cited of the confidence which the lumbermen have 

 in the Forest Service method of doing business. 



