NATIONAL FOEEST MANUAL TIMBER SALES. 



51 



For example, a 42-foot log 16 inches in diameter at the top would 

 be scaled as 



One 12-foot log with a diameter of 16 inches. 

 One 14-foot log with a diameter of 17 inches. 

 One 16-foot log with a diameter of 19 inches. 





This table is intended to be used simply as a guide. The allowances 

 for taper should be varied to conform to the actual taper. 



On the National Forests in Alaska and west of the summit of the 

 special rule for Cascade Mountains in Washington and Oregon, logs 

 Alaska and west up to and including 32 feet long will be scaled as one 

 slope of cascades. log . i^ths from 34 feet to 64 feet /inclusive, will be 

 scaled as two logs, dividing them at the center as near as may be in 

 even feet; for example, a 34-foot log will be scaled as an 18-foot and 

 a 16-foot top log. The diameter of the larger log may be determined 

 by taking the average of the top and butt diameters of the whole 

 length or by calipering or estimated by the sealer with the help of 

 a taper table. A 36-foot log will be scaled as two 18-foot logs. 

 This does not apply to lengths including rapidly tapering butt cuts. 

 The lengths and tapers for such logs can be judged by the sealer. 

 Greater lengths than 64 feet will be scaled as three logs, making the 

 divisions as nearly equal as possible and in even feet, and increasing 

 the diameters according to the taper of the log. 



When the logs are scaled as two or more logs, the scale allowed for 

 the separate lengths will be added and the total sum recorded as one 

 log. 



While no hard and fast rules can be given or followed, certain 



General principles may be laid down. They must, 

 owever, be used witn judgment by the sealer and 

 varied wherever the conditions demand. Among the 

 points which must be considered are the size and shape of the logs, 

 the quality as affected by various kinds of defects, the size and loca- 

 tion of defect, and the requirements and limitations of markets. 



Factors considered 

 in scaling. 



