Clean Burning of Slash in Cedar Cuttings. 



with the density of the stand even where the forest is all one 

 species. But the forest is of one species over only com- 

 paratively small areas; as a rule it is a mixture of two or 

 three species and every different mixture presents a different 

 problem. Since there are at least ten different species which 

 can enter into this mixture there are hundreds of different 

 combinations and when we consider the different proportions 

 in which these different species may occur in stands of dif- 



9 



