INDEX 



PAGE 



Natural selection, work of 6 



Naturalists, schools of 115 



Neanderthal man, features of 135 



reference to 266-267 



Neotropical animals, examples of 89-90 



Neotropical zoological region, limits of 85 



Neuropteridium, figure showing 164 



Neuropteris heterophylla, figure showing 148 



Newman, Horatio Hackett, chapter by .355-371 



New Zealand, flightless bird of , 99 



North America, former connection of Asia with... 86, 91-92, 227-229, 230 



Pleistocene animals of 90 



Tertiary animals of 88-91 



North Carolina, remains of Triassic mammal-like reptiles from 285 



Norway, fossil fish-like forms from 273 



Oceanic islands, forms of life on 95-100 



geology of ^ 93-94 



zoology of , 94-100 



Oecophylla longinoda, figure of 221 



nests of, figure showing 222 



Oenothera, mutations of 19 



Oligocene epoch, animals of 288 



apes of, features of 133 



horses of 226, 228 



mastodons of 233-234 



place of, in geological time table 161 



Ontogeny, key to phylogeny furnished by 74 



parallelism between phylogeny and .• 64 



uncertainty of conclusions drawn from 71 



Ordovician period, events of 161 



Organisms, distinguishing characteristics of 5-6 



early attributes of 144-145 



Origin of life, theory of 142 



Ornithorhynchus, early teeth of 176-177 



features of 176 



Orohippus, geological age of 226, 227 



Osborn, Henry Fairfield, cited 5, 287, 290 



foreword by v-vi 



Osmunda cinnamomea, view of 146 



Osmunda regalis, reference to ^ 148 



Osteolepis, reference to 277-278 



Ostracoderms, mode of locomotion of 274-275 



reference to 273, 274, 276-277 



Ostrich, competency of, to survive 99 



Overgrowth of certain features, examples of 132 



Ovules of cycad, figure showing 146 



Oxford University Museum, collection of butterflies in 181 



Palaeocene epoch, animals of 287, 288 



Palaeomastodon, features of 233-234 



form of head and molar teeth of 239 



Palaeozoic era, animals of 257-261 



[385] 



