Table 14. Net growth, normal mortality, and commodity drain on 

 primary growing stock on commercial forest land by 

 tree-size class. Montana, 1949 



Tree-size class 



Current annual 

 net growth 



Current annual 

 normal mortality 



\ Current annual 

 'commodity drain 



Saw-timber trees 

 Western Montana 

 Eastern Montana 

 Total 



52 

 42 



- Million cubic feet - 



26 

 14 



94 



40 



78 

 9 



87 



Pole-timber trees 

 Western Montana 

 Eastern Montana 

 Total 



All species 



Western Montana 

 Eastern Montana 

 Total 



45 

 102 



147 



97 

 144 



241 



3 

 7 



10 



29 

 21 



50 



3 

 4 



81 

 13 



94 



-22- 



