RESEARCH SUMMARY 



Three studies on the processing and preservation of dead lodge- 

 pole pine posts and poles indicated that some care is necessary in 

 selecting material to be treated with a preservative. Machine- 

 peeled dead tree posts were somewhat rougher than peeled green tree 

 posts and had a slight tendency to be stopped in the peeling machine. 

 The steeping method of preservative treatment gave inconsistent 

 retentions for the study times used, and none of these posts or 

 poles met the retention specified. Poles treated by the hot and 

 cold bath nonpressure method and posts treated by the pressure 

 method had retentions exceeding the minimum specification require- 

 ments. The low moisture content of the dead posts and poles 

 eliminated the necessity for air-drying them before treatment and 

 reduced the time needed to get the minimum retention required. 



