6 CONTENTS. 



Chapter III. — The Life of a Forest — Continued. Page. 



The culmination of growth 60 



The end of the struggle 61 



Death from weakness and decay 64 



Destructive lumbering 65 



Conservative lumbering 66 



Chapter 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 



Back-firing 86 



Fire lines 88 



ILLUSTRATIONS. 



Number. 



Plates -^7 



Text figures 83 



