Figure 33. A plank of Incense cedar affected by a disease known 

 as "pin rot." By cutting the cedar timber when it is mature this 

 can be largely avoided. Lassen National Forest, California. Photo 

 by the author. 



Figure 33. The western pine forests will some day be a great 

 source for naval stores. By distilling the crude resin of the JeifFrey 

 pine a light volatile oil — abietene — is secured which has great healing 

 and curative properties. Lassen National Forest, California. Photo 

 by the author. 



