3i8 



INDEX 



206, 208, 210, 212, 217, 21Q, 237, 255, 256, 



259, 261-263, 266, 270, 274 

 Nostocaceas, 286 

 Nothosaurs, 201, 239 

 Nuclein, 92, 95 

 Nudeoproteins, 116 

 Nutrition, 16, 143, 280, 289 



O 



Ocean, 4, 27, 38, 41, 80, 134; age of, 35, 36; 



salt in the, 29, 35-37 

 Oceanic, basins, 25, 26, 118; invasion, 135, 



136 

 Offense, 17, 120, 131, 152, 160, 165, 224, 



225, 240, 263 

 Ohio, 166, 167, 177 

 Okapi, 248 (Fig.), 268 

 Old Red Sandstone, 170 

 Olenelliis, 121 

 Oligocene, 135, 236, 255, 256, 261-264, 266, 



267, 269, 274 

 Olive, E. W., 92 

 Ontogeny, 108, 149 

 Ooze, 32 (Fig.); calcareous, 198; siliceous, 



104 

 Ophiacodon, 186 



Ophidia, 193, 201, 231; see Snakes 

 Opisthoprocliis solcatus, 173 (Fig.), 174 



(Fig.) 

 Opossum, 235 (Fig.), 236, 237, 243, 292 

 Ordovician, 50, 122, 123, 134, 135, 153, 160- 



162, 165, 168, 178, 193, 256 

 Organic, compounds, 56, 58, 60, 67, 69-71, 



loi; deposits, 32, ^^ 

 Organism, 14-23, 39, 53, 56-59, 68-72, 78, 



97, 99, 114, 145, 152, 238, 241, 246, 281- 



283, 286; many-celled, 69, no, 117, 245, 



see Metazoa; multicellular, 91, 94, 99, 



103, 116, see Metazoa; single-celled, 69, 



no, 112, 117, 118, 245, see Protozoa; 



unicellular, 91, 94, 102, no, 115, see 



Protozoa 

 Ornithischia, 210, 221, 224 

 Oniilholestcs, 213 

 Ornithominius, 213-215 

 Orohippits, 258 (Fig.) 

 Osteolcpis, 170 (Fig.) 

 Ostracodermata, 292; see Ostracoderms 

 Ostracoderms, 154, 161, 164-170 (Fig.); 



see Ostracodermata 

 Ostriches, 229, 230, 292 

 Otters, 239 



Owen, Richard, 177, 189, 196, 237 

 O.xidation, 53, 60, 61, 90, 91, 100, 280 

 Oxygen, 9. S3^ 37-42, 46, 47, 51-56, 61, 62. 



63, 66, 67, 70, 71, 82, 86-9I; 99, loi 

 Oxyhemoglobin, 66, 79, 247 



Pacific, 122; Coast, 206, 213; CoastRange, 



136; see Coast Range 

 Paddle, 172 (Fig.), 187, 200, 204, 206-209, 



230 

 Palaaspis, 165 (Fig.) 

 Palaeocene, 236, 259, 261 

 Palaomaslodon, 269 (Fig.), 270 

 Palaeozoic, 28. 29, 34, 50, 104, 120, 135, 153, 



160, i6r, 168, 175, 178, 181, 193, 200, 



236, 2S4, 255; post-, 28; pre-, 28, 29, 85 

 Palisade, 256 

 Palm, sago, 108 

 Palmyra aurifera, 129 

 Pancreas, 76, 289 

 Pantolambda, 259 (Fig.) 

 Pantylus, 187 

 Paradoxides, 125 



Parasitic, bacteria, 89; plants, 105 

 Parasuchia, 201 

 Parathyroid, 75, 250, 289 

 Pareiasauria, 185, 191; see Pareiasaurs 

 Pareiasaurs, 190, 191; see Pareiasauria 

 Paris, 255 

 Pasteur, Louis, 89 

 Patagonia, 219 

 Patriocetis, 241 

 Patten, William, 154 

 Pelagolhiiria nalatrix, 127 (Fig.) 

 Pelvis, 210, 221, 223 

 Pelycosaur, 186, 193 

 Pelycypoda, 291; see Pel ycy pods 

 Pelycypods, 130; see Pelycypoda 

 Penguin, 230 (Fig.) 

 Pennsylvania, 176, 177, 180 

 Pennsylvanian, 153, 161, 168, 178, 193, 211, 



227 

 Pentacta frondosa, 126, 127 (Fig.) 

 Permian, 122, 135, 153, 161, 168, 178-186, 



188-191, 193, 194, 198, 207, 210-212, 



226, 227, 236, 237, 255, 256; reptiles, 201 

 Permo-Carboniferous, 182, 186, 187, 190, 



210 

 Permo-Triassic, 135, 189 

 Peytoia nathorsli, 129, 130 (Fig.) 

 Phalanger, 239, 243 



