66 



FOKESTIIY EXPERIMENTS 



difficulty in digging without hurting it. It has been dem- 

 onstrated that young pine trees will withstand bright sun- 

 shine after they are two years of age, provided they have 

 had sufficient light and normal conditons for development. 



Fig. 8. This and next year's crop of cones growing on the same tree and at 



the same time. 



When they are between two and four years of age, they 

 are small and easy to handle, their root system sufficiently 

 developed so they can be dug without much injury, and 

 the work of resetting them far less complicated. 



