n 



The multiplied army will remain in the tree 

 until late spring. Thus months of time may be 

 had to cut and burn the tree, with its myriads 

 of murderous guests. The freedom of the big 

 trees from insect attacks suggests that man as 

 well as nature may develop or breed species of 

 trees that will better resist or even defy insects. 

 Insects are now damaging our forests to the 

 extent of not less than one hundred million dol- 

 lars annually. This we believe to be a conserva- 

 tive estimate. Yet these figures only begin to 

 tell the story of loss. They tell only the com- 

 mercial value of the timber. The other greater 

 and higher values cannot be resolved into figures. 

 Forest influences and forest scenes add much to 

 existence and bestow blessings upon life that 

 cannot be measured by gold. 



