Figure 23. In the forest nursery a trough is often used for sowing 

 seed in drills. The seed scattered along the sides of the trough rat- 

 tles into position at the bottom and is more even than when distrib- 

 uted by the ordinary worker at the bottom of the trough. Pike 

 National Forest, Colorado. 



Figure 24. Uncle Sam grows the little trees by the millions. 

 These will soon cover some of the bare hillsides on the National 

 Forests of the West. 



t-t 



