Fig. 13. DEVELOPMENT OF WHITE PINE SEEDS. 



Seedlings taken from nursery May, 1914, after growth had started. From left to 

 right: Four seeds; six seedlings from fall-sown seeds showing 3 stages of 

 development directly after breaking through the ground; two 1-year old seed- 

 lings ; two 2-year old seedlings . 



Fig 14. STUDENTS PLANTING TREES. 



From 1,200 to 2,750 trees are planted per acre. A crew of 20 men can plant 20,000 

 trees per day if conditions are favorable. 



