INDEX. 



Pinus resinosa, 64. 



Pinus strobus, 58. 



Pinus taeda, 72. 



Pith, 10, 13, 15, 16, 23, 32, 39. 



Pith ray. See Ray, medullary. 



Pits, 26, 292. 



Planting, 282-284. 



Platanus occidentalis, 162. 



Poles, 225. 



Polypores, 234 



Polyporus annosus, 237. 



Polyporus sulphureus, 236. 



Poplar, yellow, 158, 221, 245, 246, 



301. 



Pores, 23, 28, 29, 291. 

 Powder-post beetles, 244. 

 Preservation of forests, 277-284. 

 Prices of lumber, 267, 268. 

 Primary growth, 17, 22. 

 Procambium strands, 16. 

 Protection against fungi, 239. 

 Protection against insects, 247. 

 Properties of wood, Chap II., p. 41. 

 Protoplasm,, 14, 16, 23, 41 

 Pruning of branches, 286. 

 Prunus serotina, 164. 

 Pseudotsuga mucronata, 94. 

 Pseudotsuga taxifolia, 94. 

 Quartering a log, 45. 

 Quartered oak, 22. 

 Quercus alba, 150. 

 Quercus garryana, 146. 

 Quercus macrocarpa, 144. 

 Quercus michauxii, 142. 

 Quercus minor, 148. 

 Quercus obtusiloba, 148. 

 Quercus rubra, 138. 

 Quercus stellata, 148. 

 Quercus tinctoria, 140. 

 Quercus velutina, 140. 

 Rainfall, effect on forest, 205, 213. 

 Rays, medullary, 15, 16, 17, 21, 22, 



* 23, 26, 30, 31, 37, 44, 53, 291. 

 Red rot, 234. 



Redwood, 100, 207, 208, 222, 295. 

 Regularity of cells, 24. 

 Reproduction, 220. 

 Reserve sprout method, 279. 

 Resin ducts, 26, 291. 

 Rhizomorphs, 236. 

 Rind, 13. 



Ring-porous. See Wood, ring-porous. 

 Rings, Annual, 9, 18, 19, 21, 23, 44, 



226, 290. 



Rings, False, 19, 231. 

 Robinia pseudacacia, 166. 

 Rodents, 239. 



Roots, 211, 224. 



Rotation period, 279. 



Rotting, 234. 



Salix nigra, 112. 



Sand dunes, 230, 231. 



Saplings, 225, 226. 



Saprophytes, 233. 



Sap-wood, 13, 17, 18, 41, 42, 290. 



Sassafras, 296. 



Sawyers, Pine, 244. 



Secondary growth, 17. 



Section, cross, 21, 22, 29. 



See also Section, transverse. 



Section, radial, 19, 22, 26, 30, 31. 



Section, tangential, 19, 22, 26, 30, 31. 



Section, transverse, 19, 24, 29, 30. 



Seasoning, 42. 



Sections, transverse, radial and tan- 

 gential, 12. 



Seed forests, 279-282. 



Seeding from the side, 279. 



Seedlings, 225, 226. 



Seeds, 220-223, 226. 



Sequoia, 98. 



Sequoia, 100. 



Sequoia, Giant, 98. 



Sequoia gigantea, 98. 



Sequoia sempervirens, 100. 



Sequoia loashingtoniana, 98. 



Settler, 258. 



Shake, 47, 232, 233. 



Shearing strength, 52. 



Sheep, 240. 



Shelf fungus, 234, 236. 



Short-bodied trunk, 225, 226. 



Shrinkage of wood, 41, 42-47. 



Silver flakes, 22. See Rays, Medul- 

 lary. 



Silvical characteristics, 211. 



Silvicultural systems, 278-284. 



Slash, 229, 251, 257. 



Slash-grain, 54. 



Snow, 232. 



Slash-sawing, 45, 47. 



Softwoods, 12. 



Soil, 211, 213. 



Specific gravity. See Weight. 



Splint- wood, 17. 



Splitting. See Cleavability. 



Spores, 234. 



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

 53, 54, 291. 



Sprouts, 220, 222. 



Spruce, 80-89, 295. 



Spruce, Black, 84. 



Spruce, Douglas, 94, 296. 



Spruce, Engelmann's, 86. 



