Figure i?3. In the forest nursery a troupb is often used for sowing 

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

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

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

 National Forest, Colorado. 



Figure 24-. I'ncle Sam grows the little trees by the millions. 

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

 Forests of the West. 



