Hecate Strait, 70 



Hellbender, 91 



Hemlocks, 64, 71, 11. 139 



Heron Bay, 40 



Herons, 84*, 119, 129, 162, 166*, 



167*, 179 

 Hickory, 92 

 Hidalgo (Mex.), 282 

 Hillsborough R., 174 

 Hog, Razorback, 130 

 Hollies, 117. 119 

 Hood, Mt., 146 

 Hornbeam, 92 

 Horned Toad, 273' 

 Horses. 189, 274 

 Horseshoe Crab. 112*. 117 

 Horsetails (plants). 210 

 Horsts (geologic), 28 

 Hovenweep Nat. Mon., 213 

 Huajilla (tree), 186 

 Huckleberry, 139 

 Hudson Bay. 26, 38, 40, 45, 51, 64. 



84, 86 

 Hudson R., 86, 94, 107 

 Hummingbirds, 64, 245*, 248, 253, 



274 

 Huisache (tree), 186, 188, 240, 278, 



284 

 Huizache (Mex.), 281 

 Hummocks (Hammocks). 129, 177 

 Huron, L., 80 

 Hurray Bush, 124 

 Hurricane Cliffs (Utah), 203 

 Hurricanes, 182, 190 

 Hver (Geysers), 228 

 Hyracotheres, 274 



Ibises, 130, 180 

 Ice. Crystalline, 17 



Glaze, 14 



Pack, 12. 13. 14 



Palaeocrystic. 13, 17 



Pancake, 12 



Sea, 10, 12, 13,21 



Weather, 14 

 Ice Advances, 82 

 Ice Age. 10, 20. 25. 142, 167. 176. 



206. 237. 248 

 Icebergs, 10, 14. 15*. 17*. 18*. 19*. 



20, 61 

 Icecaps, 10, 12, 14. 15*. 16, 20, 28, 



41, 51, 53, 60. 64. 82, 85, 92. 98, 



119 

 Icefields. 41, 61, 70, 136, 198. 206 

 Ice Floes, 10, 56 

 Ice Raft. 10. 13. 14. 16 

 Icy Strait, 64 

 Idaho, 218 



Illinois, 122. 156. 163. 194 

 Insects. 12. 42, 64. 76. 94, 103. 117, 



124, 130, 165, 189, 194, 200. 234, 



236, 242, 244, 250, 254, 279 

 Interior Highlands, 78, 80, 86, 91. 



122. 133. 134. 150 

 Ironwood. 254. 262 

 Islands, The. (Canadian), 10, 12, 



20, 24, 38, 51 

 Isopods, 77 



Ivy, Poison. 94, 95. 188 

 Ixtacihuatl, Mt.. 280*. 281, 289 



Jackrabbits. 134. 194. 198. 236. 266, 



271*, 274 

 Jackson Hole, 222 

 Jaeger, 14*, 16 

 Jaguar. 250. 264. 286. 287* 

 Jaguarundi (Eyra). 130. 250. 264 

 Jalisco (Mex.), 282 

 Jalisto (Mex.), 250 

 James Bay, 28, 40, 86 

 James R., 110 

 Jaquitiba (tree), 144 

 Jays, 104*, 134, 146, 207, 214*. 274 

 Jefferson, Mt.. 146 

 Jesup, Cape Maurice, 13 

 Jornada del Muerto, 268 

 Joshua Tree. 254. 260'. 261 

 Juncos, 274 

 Junipers, 72. 133. 200. 202. 208. 



213, 226, 271. 274. 278. 286 



Kaibab Plateau. 203 

 Kalmia (bush). 92 

 Kamloops (B.C.). 70. 134, 147 

 Kanab Plateau. 203 

 Kansas, 80, 154, 186, 192 

 Katmai, Mt.. 51. 56. 60. 289 

 Keewatin Peninsula, 10. 12. 24. 25. 



38. 49. 84. 86 

 Kelp. 139. 144. 145*. 250. 252 

 Kentucky, 92 

 Kestrel, 78, 79* 

 Kingfisher, Crested. 94 

 King's Canyon. 143 

 Kittiwake, 34, 35* 

 Klamath R., 134, 136, 141 

 Knockaway (tree), 188 

 Kodiak Is.. 51, 60, 67, 75 

 Krill, 77 



Labrador. 12. 24. 26. 28. 30. 34. 38, 



41,42, 80, 84,86 

 La Brea (tar pits), 247 

 La Culebra Pass (Mex.), 286 

 Laguna Mtns.. 246 

 Lahontan. L.. 232. 237, 242 

 Lake District (Canadian), 38. 51. 



68, 84, 156 

 Lakes, 12, 32, 38, 40. 85. 86. 98. 



133, 143, 156, 168, 174. 179, 188, 



190, 203, 226, 237. 239. 270 

 Lampreys, 77 

 Lancaster Sound. 12 

 Larches. 72. 226 

 Laredo (Tex.), 281 

 Larks, 75, 134 

 Lassen. Mt.. 146 

 Laurels, 92 



Laurentian Shield, 28, 38, 40, 42, 98 

 Lava (beds), 29, 202, 207, 268, 269*, 



289 

 La Vela Pass, 202 



Lemmings, 16, 29. 30, 31*. 42. 106 

 Lemon Weed, 203 

 Leon (Mex.), 288 

 Liard R., 40 

 Lichens, 2, 22*, 25, 28-30, 40, 44. 



71, 82, 104, 137, 222 

 Lilac (bush), 253 

 Lilies, 129, 179. 254 

 Limestone. 42, 91, 172,202 



Limonite (geologic), 284 



Ling (fish). 77 



Linnets. 134. 264 



Lions (extinct), 14, 52 



Little Snake R., 203 



Lizards, 165, 196*, 198. 236, 242*, 



244,262, 266, 273*. 284* 

 Llano Estacado. 154 

 Lobsters, 117 

 Loess, 159 

 Long Island, 41. 51. 86. 107. 110, 



112, 119 

 Lookout, Cape, 122 

 Loons, 64, 77, 226 

 Los Angeles, 244, 247. 248. 256 

 Lostman's Creek, 185 

 Louisiana. 218 

 Lowlands. Central. 78. 86 

 Lucero. Lake. 270 

 Lynx. 49, 53*, 64 



Mackenzie District, 12, 24 

 Mackenzie Range, 60. 67 

 Mackenzie R., 26, 28. 40. 42. 49. 



52, 192, 218 

 Madrona (tree), 72.141.246.262.283 

 Mageik, Mt., 51* 

 Magnolia (tree), 92, 121 

 Magpies, 213 

 Mahogany (tree), 182 

 Maine, 92. 94. 96. 98. 103. 254 

 Mammals. 42. 46. 53. 75, 102. 117, 



129. 150. 185. 194, 211. 234. 250. 



264, 274 

 Mammoth, 52, 150. 244. 248 

 Mammoth Cave, 91. 200 

 Man. Influence of, 78, 82. 86, 91. 



92. 103, 117. 123. 230. 240. 243. 



246. 279. 286 

 Manatee. 185 



Mangroves. 12, 174. 176. 181* 

 Mante (Mex.). 281 

 Mantis, Praying, 103 

 Maples. 28. 72, 86. 92. 134. 139, 141 

 Marmots, 226, 236 

 Marshes, 21, 107, 110. HI*. 118, 



134, 160, 165, 168. 174. 179. 188. 



190, 192 

 Marten, American, 44*, 64, 226 

 Marten Fisher, 44, 95, 103. 226 

 Martha's Vineyard, 107, 119 

 Mastodons. 150. 174 

 Matamoros (Mex.). 189, 282 

 Mayo, L.. 68, 70 

 Mazama, Mt., 146 

 Mazatlan. (Mex.). 281. 288 

 McKinley, Mt., 60 

 Meridian, hundredth, 38 

 Merlin, 45 

 Mesquite (tree), 133, 154. 186. 188. 



190, 192. 200. 240. 254. 262. 271. 



279, 282, 284 

 Mexico, 80. 136. 144. 156. 186. 188. 



190. 192, 208, 218, 122, 228, 230. 



232, 250, 254. 262. 267, 270. 274. 



281-283, 286 

 Mexico City, 282. 289 

 Miami Rockridge. 179 

 Mice, 86, 95. 107, 123. 134, 155, 194, 



236. 264, 271, 274 

 Michigan, L., 80 



Migration, 30. 36. 77, 102, 107, 119. 



192, 194, 250 

 Millipedes, 117 

 Mima Mounds, 136 

 Mimosa, 186, 195. 253 

 Mink, 30, 44, 64, 82. 83*. 102. 107, 



141, 236 

 Minnesota, 78 

 Mississippi R.. delta of the. 108, 



117, 122, 150, 160, 161*. 165 

 Mississippi Valley, 80, 82, 108, 121, 



122, 133, 162 

 Missouri, 51, 194 

 Mitchell, Mt., 104, 105* 

 Moccasin (Cottonmouth). 163 

 MogoUon Rim, The, 207 

 Mojave Desert. 230. 256 

 Moles. 30. 102. 107. 134. 142 

 Molluscs. 75. 113. 192 

 Mono. L.. 234* 

 Montague Is., 67 

 Montana. 41, 82. 156. 194, 261 

 Montane Block, North, 198. 217.222, 



232, 237 

 Montane Block, South, 188, 196, 



198. 208, 218, 230, 232, 237, 256, 



268, 270 

 Montauk Point, 110, 119 

 Monument Valley, 210* 

 Monterey Bay (Cal.), 142 

 Monterrey (Mex.), 188, 268, 281. 282 

 Moose, 38, 41*, 46, 146, 218 

 Moosonee (Ontario). 28, 40 

 Moraine, L., 224* 

 Moraines, 21. 60. 64. 82. 85, 86, 98, 



119 

 Mosquitoes, 12. 82, 179, 185, 200 

 Mosses, 21. 25. 40, 44. 49. 71, 82, 



95, 98, 104, 137. 222 

 Mother Burke's Rode. 32* 

 Moths. 96,97*. 103 

 Moulds. 98 

 Mountain Beaver. 142 

 Mountain Gum (tree), 144 

 Mountain Lion (Puma), 86, 103, 



127, 129. 200*. 236. 250, 264 

 Muck, 52 

 Mud Puppies, 91 

 Muir Glacier. 61. 64 

 Murrelets. 64 

 Murres, 34 



Muskeg, 28. 38. 45*, 49. 124 

 Musk Ox. 20*, 24*, 25 

 Muskrat (Musquash), 30. 86, 95, 



129, 162. 168, 170*. 236 

 Mussel R.. 130 

 Mussels. Fresh-water. 180 

 Myrtle (tree). 253 



Nakahuita (bush). 189 

 Nantucket. 107, 110, 119 

 Narwhal. 34 

 Nashville Basin. 86 

 Natchez Miss.. 122. 133. 162 

 National Elk Refuge. 222 

 Navajo Reservation, 211 

 Nayarit (Mex.), 289 

 Nebraska. 80, 192 

 Nevada, 234 

 New Brunswick, 94 

 Newfoundland, 28, 41, 84. 218 



