6 



CONTENTS. 



Chapter III.— The Life of a Forest— Continued. p ag e. 



The culmination of growth _ 60 



The end of the struggle 61 



Death from weakness and decay 64 



Destructive lumhering 65 



Conservative lumbering 66 



C hapter IV. — Enemies of the Forest 67 



Man and nature in the forest 67 



Grazing in the forest 69 



Grazing and fire 70 



Trampling 71 



Browsing 72 



Forest insects 73 



Forest fungi 74 



Wind in the forest 75 



Snow in the forest 76 



Forest fires 77 



Historic forest fires 79 



Means of defense 83 



Surface fires 84 



Ground fires 85 



Bach-firing 86 



Fire lines 88 



ILLUSTRATIONS. 



Plates 



Text figures 



Number. 

 47 

 83 



