INDEX. 



309 



Spruce, Red, 82, 213. 



Spruce, Sitka, 88. 



Spruce, Tideland, 88. 



Spruce, Western White, 86. 



Spruce, White, 80. 



Stand, mixed, 213, 223. 



Stand, pure, 213, 223. 



Standards, 225, 226. 



Steamboats, 246. 



Stem, diagram of cross section, Fig. 



4, p. 13, fig. 5, p. 15, 211. 

 Strength of wood, 41, 51-53 

 Strip system, 279. 

 Structure of wood, 9-40, 29, 30. 32. 

 Struggle for existence, 224, 226, 227. 

 Summer- wood, 20, 21, 24, 30, 32, 44, 



53, 54, 291. 



Swietenia mahagoni, 168. 

 Sycamore, 22, 162, 300. 

 Tamarack, 76, 296. 

 Tamarack, Western, 78. 

 Taxes on forests, 261. 

 Taxodium distichum, 102. 

 Tear fungus, 234, 238. 

 Temperature, 214. 

 Tension, 51, 52. 

 Texture of wood, 32. 

 Thuja gigantca, 104. 

 Thuja plicata, 104. 

 Tilia americana, 178. 

 Timber beetles, 242, 245. 

 Timber supply of U. S., 264-269. 

 Timber trees, 10. 

 Timber worms, 244. 

 Tissue, 16. 

 Toadstools, 234. 

 Tolerance, 216, 219. 

 Toughness of wood, 41, 54. 

 Tracheae, 23, 28. 

 Tracheid, 28, 30, 290, 292. 

 Trametes pini, 235. 

 Trametes radiciperda, 237. 

 Tree, parts of, 211. 

 Treeless area, 197, 203. 

 Trees, Broad-leaved, 9, 10, 28, 29. 

 Trees, deciduous, 10. 

 Trunk, 13, 211. 



Long-bodied, 225. 



Short-bodied, 225. 

 Tsuga canadensis, 90. 

 Tsuga heterophylla, 92. 

 Tulip Tree, 158. 



See Poplar Yellow 



Tupelo, 180. 



Turpentine, 263. 



Two-storied Seed Forest, 282. 



Ulmus americana, 154. 



Ulmus racemosa, 12. 



Ulmus thomasi, 152. 



Utilization of forests, 271-277. 



Veneer, 10, 35. 



Vessels, 23, 28, 29. 



Vegetable enemies, 233-239. 



Veterans, 225. 



Walnut, Black, 116, 300. 



Walnut, White, 114. 



Warping, 45-47. 



Waste, Avoidance of, 274. 



Waste in lumbering, 263. 



Water, 41, 42, 226, 231. 



Weeds, Forest, 225. 



Weight of wood, 41, 49-51. 



Whitewood, 158. 



Wilderness, Conquest of, 258. 



Willow, Black, 112. 



Wind, 229, 252, 253. 



Windfalls, 229. 



Wood, Diffuse-porous, 23, 30, 300-303. 



Wood, Non-porous, 24-26, 58-111, 294- 



296. 



Wood, Primary, 17. 

 Wood, Properties of, Chap. II., 41-56. 

 Wood, Ring-porous, 23, 29, 296-299. 

 Wood, Spring, 20, 21, 24, 30, 32, 44, 



53, 54, 291. 



Wood, Structure of, 9-40. 

 Wood, secondary, 17. 

 Wood, summer, 20, 21, 24, 30. 32, 



44, 53, 54, 291. 

 Wood borers, 243. 

 Wood cells. See Cells. 

 Wood. See Sap-wood, Heart wood. 

 Wood dyes, 18. 

 Wood fiber, 28. 

 Woods, Color of, 17, 18, 290. 

 Woods, The distinguishing of, 289- 



303. 



Working, 47. 

 Worm-holes, 243. 

 Worms, carpenter, 245. 

 Worms, Timber, 244. 

 Wound parasites, 234. 

 Yew, 295. 

 Yield, 275. 

 Yucca, 10. 



