INDEX. 



Page 



Abies 216 



Abies grandis 228 



lasiocarpa 229 



American dipper 236 



American redstart 236 



Animal counterfeits 242 



Alluring coloration 246 



Alpine fir 225, 229 



Alpine meadow 274 



Anodonta plana 256 



ovata 256 



Anosia 244, 245 



Anosia plexippus 245 



Arbor-vitae 216, 222, 223 



Aristotle 210 



Arlee 202 



Bailey, Florence Merriam 205 



Basilarchia 245 



disippus 245 



astyanax 245 



Birch 250 



Bird, how to recognize 204 



Birds, value of 206 



Bird food 206 



Bird companions 208 



Bird courtship 208 



Birds at Daphnia pond 232 



Birds' nests 234 



Bird Music 275 



Black oak 212 



Blackwelder, Eliot 202 



Blaine lake 203 



Blue flag 268 



Bumble bee 244, 246 



Burroughs. John 205, 272 



Cabinet Range 202 



Catalpa 269 



Catbird 270 



Catbird, nest of 235 



Cedar waxwing 238. 239, 278 



Chamelon 244 



Chat 277 



Chapman, Frank M 206 



Chipping sparrow 238, 239 



Climate of Montana 249 



Colors in animals 242, 243 



alluring 246 



warning 244 



Columbia Falls 202 



Cuvier 210 



Page 



Cyclops pulchellus 232 



Daphnia pond 230 



Daphnia pulex 230,232 



Darwin 246, 247, 263, 264, 266, 281 



Diaptomus lintoni 232 



Douglas spruce .217, 225, 227, 272, 273 

 Douglas spruce association. . . . 272 



Dragonfly 246 



Echo lake 201, 203 



Englemann spruce ..225. 226, 227, 272 

 Engelman spruce association. 271, 273 



Entomostraca, study of 283 



Environment 248, 231 



Fertilization of plants 210, 263 



Fir 216 



Fir. lowland 225, 229 



alpine 225, 229 



Flathead lake 



197, 198, 199. 202, 203. 280 



Flathead Valley 243. 250 



Flathead river 197, 203 



Fly-catchers 247 



Forest formation 215, 251, 272 



Forest fires 252 



Frog 244 



Geometrid Moths 243 



Giant arbor-vitae 222 



Gibson 263 



Glacial epoch 200 



Great plains 250 



Grosbeak, blackheaded 238. 272 



Hemlock 216 



Heredity 230 



Houstonia 264 



Ice age 200 



Jay. blackheaded 240 



Junco 272 



Juniper 216. 224 



Juniperus 216, 224 



scopulorum 224 



virginiana 224 



Kalima butterfly 247 



Kinglets 247 



Larch 215 



Larix 215 



occidentalis 216.217 



laricina 216 



Ivallii 218 



Lazuli bunting 238, 272 



Lewistown 259 



