LIST OF ILLUSTRATIONS XXI 



PIG. PAGE 



52. A F'avorable Condition for Burning Piled Brush. 



Missoula National Forest, Montana 259 



5.-i. A Spruce Top Improperly Lopped 263 



54. The Same Spruce Top Properly Lopped 263 



55. A Well-Developed System of Roads and Trails, Used 



for Transportation and Fire Protection. Black 

 Forest, Germany 269 



56. A Plowed l^urrow that Stopped a Surface Fire 274 



57. A Full}' Cleared Fire-Line in the San Gabriel AJoun- 



tains, California 274 



58. A Fire-Line in the Chaparral. Angeles National 



Forest, California 279 



59. A Mountain Trail Built for Fire Patrol. Angeles 



National Forest, California 283 



60. Location of Fire-Lines in the Angeles National For- 



est, California 283 



61. A Lo(jkout Station. Cabinet National Forest, Mon- 



tana 287 



62. A ^^'atch Tower in the Tusayan National Forest, 



Arizona 295 



63. Fighting a Ground 1' ire by Trenching 31)4 



