Contents jd 



CHAPTER IX 



PAGES 



Forest Utilization 206-224 



For construction timbers, 207 — fence posts and rails, 

 208 — railroad ties, 209 — implement parts, 210 — fire- 

 wood, 211— logging, 213 — felling, 213 — dividing the 

 logs, 215 — skidding, 216 — hauling, 218 — the chief 

 uses of our common woods, 219 



CHAPTER X 

 By-products of the Northern Woodlot . . . 225-237 



Maple sirup and sugar, 225 — the sugar maple, 226 — 

 season, 227 — equipment, 228 — tapping the trees, 229 

 — collecting sap, 230 — boiling the sap, 230 — making 

 sirup, 230 — sugaring-off, 232 — yield per tree, 233 — 

 effect on tree, 233 — wintergreen oil from black birch, 

 235 — tanning materials, 235 — specifications of extract 

 wood, 237 



CHAPTER XI 

 The Durability and Preservation op Woods . . 238-258 

 Factors influencing durability, 239 — naturally dura- 

 ble woods, 241 — substitutes, 242 — cause of rot, 243 — 

 method of seasoning logs and timber, 245 — seasoning 

 lumber, 245 — coating of timbers, 246 — coal tar, 247 — 

 oil paint, 247 — lime whitewash, 247 — charring, 248 — 

 general rules on preserving timbers, 248 — preserving 

 materials, 250 — brush method, 250 — dipping, 251 — 

 open-tank treatment, 252 



CHAPTER XII 

 Arboriculture and Ornamental Planting . . . 259-276 

 Selection of ornamental trees, 259 — transplanting 

 large trees, 263 — pruning, 266 — to improve shape of 

 tree, 267 — how to prune, 269 — table of ornamental 

 trees, 270 



