PROBLEAL 4. Why We Must Practice Cojiservatioji 



401 



■^'^mm^' 



Fig. 351 What fire can do to a watershed. What will be the residt when ram jails 

 on these burned-over slopes? (u. s. forest service) 



Fig. 352 The forest ranger watches for the ever-tfienacing forest fire. The ranger is 

 an important part of the program of conservation of our forests. He not only 

 watches for ajid reports fires but helps fight and directs the fighting of fires. Sonte 

 rangers use airplanes to search for fires; others spend much of their time in lonely 

 mountaintop fire towers, (u. s. forest service) 



