INDEX 315 
Windbreaks, need of, 15 Wood, strength of, 59 
Witch-hazel, 258 structure of, 51, 280 
Witch hobble, 260 substitutes for, 3, 10, 60, 278 
Wood, color of, 54 . preservation of, 147 
consumption of, 3, 10, 278 weight of, 58 
decay of, 147 Wood acid, 144 
defects of, 59 Wood alcohol, 144 
distillation of, 144 Wood dyes, 54 
durability of, 52, 57 Woodlot, 174 
figured, 56 extent of, 174 
grain of, 56 management of, 174 
heart, 52 sale of products of, 174 
identification of, 278 Wood preservation, cost of, 155 
qualities of, 51 effects of, 155 
sale of, 171 methods of, 148, 150 
sapwood, 52 need of, 147 
(3) 
