NATIONAL FOREST RESOURCES 189 



unduly increased, to skid and pile the logs for 

 scaling. Piles and skidways must be constructed 

 so as to permit economical scaling and when neces- 

 sary and practicable the purchaser is required to 

 mark the small ends of the logs to avoid misunder- 

 standing when they are scaled on the pile. 



Logs or other material that has been scaled or 

 measured are designated by a "US" stamp im- 

 pressed in the wood so that the material may not 

 be scaled again by mistake. Each merchantable 

 log scaled is stamped on at least one end and un- 

 merchantable or defective logs are stamped "US" 

 in a circle. Material other than saw logs, such as 

 mine timber, ties, posts, poles, or piling, after scal- 

 ing, is stamped on at least one end. Cord wood is 

 stamped at both the top and bottom of each rick. 



On all National Forests except those in Alaska 

 and west of the summit of the Cascades in Wash- 

 ington and Oregon, logs over 16 feet are scaled as 

 two or more logs as far as practicable in lengths of 

 not less than 12 feet. In Alaska and parts of Ore- 

 gon and Washington logs up to and including 32 

 feet in length are scaled as one log; logs from 

 32 to 64 feet inclusive are scaled as two logs as 

 nearly equal in length as possible in even feet. All 



