DEVELOPMENT OF PULPWOOD .RESOURCES. 35 



until, as the result of actual measurements, the district forester 

 and the purchaser shall have agreed on the use of some other 

 ratio. Such material shall be piled for measurment as the Forest 

 officer in charge shall direct. 



Sec. 17. In obtaining the cubic contents of logs the maximum Scaling length. 

 measuring length may in the discretion of the district forester 

 be thirty-two feet; greater lengths may be measured as two or 

 more logs. 



Sec. 18. Any tree which in the judgment of the Forest officer Definition of 



merchantable 



contains one or more logs merchantable as defined in section 19, tree. 

 and having a net total merchantable volume of 25 per cent or 

 more of the total volume of the tree, shall be considered mer- 

 chantable under the terms of this agreement. 



Sec. 19. All spruce logs are merchantable under the terms of Merchantability 

 this agreement which are not less than 16 feet long, at least 

 inches in diameter inside bark at the small end, and after deduc- 

 tions for visible indications of defect are estimated to contain 

 33 1 per cent sound material ; all Alaska cedar logs are merchant- 

 able under the terms of this agreement which are not less than 

 16 feet long, at least 10 inches in diameter inside bark at the 

 small end, and after deductions for visible indications of defect 

 are estimated to contain 33J per cent sound material ; and all 

 logs of hemlock and other species are merchantable under the 

 terms of this agreement which are not less than 16 feet long, 

 at least 6 inches in diameter inside bark at the small end, and 

 after deductions for visible indications of defect are estimated to 

 contain 50 per cent sound material : Provided, That the 33£ per 

 cent aforesaid in spruce and Alaska cedar logs and the 50 per 

 cent aforesaid in hemlock and other species shall be so located in 

 the log as to permit the use of the sound material for pulp manu- 

 facture under the pulp manufacturing methods used in efficiently 

 conducted pulp operations in Alaska. 



Sec. 20. On request, copies or abstracts of the scale reports Sca,e re P°rts. 

 will be furnished to the purchaser after they have been approved 

 by the forest supervisor. 



BRUSH DISPOSAL. 



Sec 21. The district forester may require that all tops shall be Disposal of 



brush 



lopped and all brush scattered so as to lie close to the ground 

 and away from standing trees and reproduction, or any other 

 method of disposal the cost of which shall not be in excess of 

 this method. 



FIEE PBOTECTION. 



Sec 22. During the time that this agreement remains in force 

 the purchaser shall independently do all in his power to prevent 

 and suppress forest fires on the sale area and in its vicinity, and 

 shall require his employees, contractors, and employees of con- 

 tractors to do likewise. Unless prevented by circumstances over 

 which he has no control, the purchaser shall place his employees, 

 contractors, and employees of contractors at the disposal of any Assistance in 

 authorized Forest officer for the purpose of fighting forest fires, fi g htin g Ares. 

 with the understanding that unless the fire-fighting services are 



