Treatment of Western Yellow Pine 



101 



1. What is the length of time required to season poles 

 to an air dry condition? 



2. What is the difference in the rate of seasoning of poles 

 cut at different seasons of the year? 



3. What is the shrinkage in circumference of poles due 

 to seasoning? 



4. What increase of decay resisting power is secured by 

 seasoning poles? 



5. What is the increase in the penetration of preserva- 

 tives into seasoned as compared with wood in partially seasoned 

 stages ? 



6. What is the effect of the season of cutting upon en- 

 durance in the soil? 



7. What is the effect of the time of seasoning upon checks 

 or splits in the poles? 



8. What are the best methods of piling or skidding poles 

 while seasoning? 



9. Securing exact data on the rate of seasoning or water 

 content at any time of timber cut seasonally. 



Poles cut each season of the year were weighed monthly 

 until air dry. 



The following table shows the rapid loss of weight during 

 seasoning of pine poles according to the time of year in which 

 they are cut . 



TABLE 1. SEASONING OF WESTERN YELLOW PINE POLES, 

 MADERIA COUNTY, CALIFORNIA. 



Average 40 foot pole contains 26.1 cubic feet. 

 Oven-dry weight is 26.2 pounds per cubic foot. 



