Locust, Honey, 166, 297. Locust, Yellow, 166. Long-bodied trunk, 225. Lumber consumption, 264. Lumber, 9, 10. Lumber prices, 267, 268. Lumber production, 265-267. Lumber, substitutes for, 264. Lumbering, conservative, 274, 276. Lumbering, destructive, 251, 258-263. Lumberman, 260. _Magnolia acuminata_, 156. Magnolia, Mountain, 156. Mahogany, 168. Maple, 170-177, 301. Maple, Hard, 25, 176. Maple, Large Leaved, 170. Maple, Oregon, 170, 207. Maple, Red, 174, 302. Maple, Rock, 25, 176. Maple, Silver, 172, 302. Maple, Soft, 172. Maple, Sugar, 176. Maple, White, 170. Maple, White, 172. Medullary rays. See Rays. Medullary Sheath. See Sheath. _Merulius lachrymans_, 234, 238. Meteorological enemies, 229-233. Mice, 237. Microscope, 14, 24-31, 290. Mine, Forest treated as, 261, 274. Mockernut, 118. Moisture, 213. Moisture in wood, 41, 52. Monocotoledons, 9, 10, 17. See also Endogens. Mountain, 216. Mulberry, Red, 297. Mushroom, 236. Mutual aid, 224. Nailing, 53. Needle-leaf trees, 12. Non-porous. See Wood, non-porous. North Woods, 197, 218. Nurse, 218, 219. _Nyssa sylvatica_, 180. Oak, 138-151, 298. Oak, Basket, 142. Oak, Black, 140. Oak, Bur, 144. Oak, Cow, 142. Oak, Live, 201. Oak, Mossy-cup, 144. Oak, Over-cup, 144. Oak, Post, 148. Oak, Red, 138. Oak, Stave, 150. Oak, White, 150. Oak, White (Western), 146. Oak, Yellow bark, 140. Odors of wood, 18. Osage Orange, 296. Organism, Forest, 211. _Padus serotina_, 164. Palm, 9, 17. Paper pulp, 263. Parasites, 233. Parenchyma, 23, 28. Pecky cypress, 234. Peggy cypress, 234. Pepperidge, 180. Persimmon, 298. Phanerogamia, 9. Phloem, 13. _Picea alba_, 80. _Picea canadensis_, 80. _Picea engelmanni_, 86. _Picea mariana_, 84. _Picea nigra_, 84. _Picea rubens_, 82. _Picea sitchensis_, 88. Pigeon Horn-tail, 247. Pignut, 122. Pines, 58-75, 295. Pine, Bull, 66, 205, 282. Pine, Cuban, 74. Pine, Georgia, 68. Pine, Loblolly, 72. Pine, Long-leaf, 68, 200. Pine, Norway, 64. Pine, Old Field, 72. Pine, Oregon, 94. Pine, Red, 64. Pine, Short-leaf, 70. Pine, Slash, 74. Pine, Sugar, 62. Pine, Western White, 60. Pine, Western Yellow, 66. Pine, Weymouth, 58. Pine, White, 24, 58, 199. Pine, Yellow, 70. Pine sawyers, 244. _Pinus caribaea_, 74. _Pinus echinata_, 70. _Pinus heterophylla_, 74. _Pinus lambertiana_, 62. _Pinus monticola_, 60. _Pinus palustris_, 68. _Pinus ponderosa_, 66. _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.