INDEX 157 
Young growth, etc.—cont’d. Young growth, etc.—cont’d. 
Fitness of, to produce lumber, 21, Number of trees per acre, 35. 
35. ig ‘* “other than spruce 
in relation to future crops of per acre, 93-94. 
spruce, 35-37- Occurrence of, 19, 34-35. 
Injuries to, from felling and under heavy cover, 35- 
skidding, 32, 113. Zuwachsborer, Pressler’s, 9s. 
