228 WOOD AND FOREST. 



suppose that the natural virgin forest is the best possible forest, and 

 that it should therefore be left alone. In the National Forests the 

 ripe lumber is sold and a considerable revenue is thus available. But 

 nature's way with the dead tree is to use it to produce more life. 

 How she does so will be explained in the next chapter, on the enemies 

 of the forest. 



THE FOREST ORGANISM. 

 REFERENCES : * 



Pinchot, For. Bull. No. 24, I, pp. 25-G6. 

 Bruncken, pp. 13-31 

 For. Circ. No. 36, p. 8. 

 Fernow, Economics, pp. 140-164. 



*For general bibliography, see p. 4. 



