DISTILLATION 



3 



region to determine the stand or number of rich resinous stumps and 

 the practicability of profitable distillation must be left to those in 



FIG. 1. Geographic distribution of Pinus ponderosa. 



the various regions who plan to enter the field of wood-distillation 

 from a commercial standpoint. Such a survey, however, should al- 

 ways be made before undertaking distillation in any section. 



