322 



INDEX 



Thyroid, 66, 75, 250, 289, 290 



Tidal stability, 27 



Tides, 35 



Tigers, 225 



Titanium, 33, 34, 47 



Titanothere, 149, 258 (Fig.), 263-265 



(Figs.), 270, 292 

 Toad, 178, 292 



Tortoises, 193, 239, 292; sea, 201 

 Toxic action, 67 

 Trachodon, 197 (Fig.), 222, 223 (Fig.), 276; 



annectens, 222 (Fig.) 

 Traquair, R. H., 170 

 Trematops, 182 

 Trias, 216, 217 

 Triassic, 135, 153, 161, 168, 178, 183, 189- 



191, 193-200, 203, 205-207, 210-212, 216, 



224, 226, 227, 236, 255, 256 

 Triceratops, 225 

 Tridactylism, 159 

 Trillium, 96 (Fig.), 97; sessile, 96 

 Trilobites, 120, 121 (Fig.), 124, 125, 130, 



132, 171, 291 

 Trinterorachis, 182 

 Trinacromerion osborni, 208 (Fig.) 

 Trinity-Morrison time, 218 

 Trituberculata, 236 

 Tuateras, 193, 194, 231, 292 

 Tupaia, 235 (Fig.) 

 Turaco, 67 

 Turtles, 190, 193, 194, 200, 202, 205, 231, 



239; sea, 202 (Fig.), 203 (Fig.), 206, 239, 



292 

 Tusks, 259, 260, 270 

 Tylosauriis, 200 (Fig.), 209 (Fig.), 210 

 Tyrannosaitrus, 215, 224 (Fig.); rex, 214 



(Fig.), 225; see Frontispiece 



Vertebrata, 131, 141, 146, 154, 253, 292; 



see Vertebrates 

 Vertebrates, 50, 75, 109, 117, 130, 138, 160, 



168, 170, 175, 198, 218; see Vertebrata 

 Viviparity, 204, 205 

 Volcanic, action, 29-31, 206; ash, 198; 



emanations, 68; heat, 45; islands, 213 

 Volcanoes, 40, 62, 134, 171 

 de Vries, Hugo, 7, 106, 107, 140, 144, 145 



W 



Waagen, Wilhelm, 138-140, 276 



Walcott, Charles D., 28. 29, 85, 118, 120, 



122, 126, 129, 160 

 Wallace, Alfred Russel, 24, 257 

 Walrus, 239 



Wasteneys, Hardolph, in 

 Water, 9, 18, 22, 28, 33, 34-39, 40, 41, 45, 



52, 55, 64, 68, 70, 83, 84, 91. 105, 106, 



156, 285 

 Watson, D. M. S., 189 

 Weismann, A., 19, 20, 94, 95, 144, 145 

 Whales, 142, 200, 205, 234 (Fig.), 236, 237, 



239, 241, 247, 252, 259; 260 (Fig.), 269, 



292 

 Wheeler, W. C, 103 

 Williston, S. W., 180, 186, 209 

 Wilson, Edmund B., 92, 97 

 Wing, 199, 226-230 (Figs.) 

 Winogradsky, S., 82 

 Wolf, 247 

 Wolves, 225 



Woodward, A. Smith, 164 

 Worms, 128, 136, 291; see Annulata 

 WortJteneUa cambria, 128 (Fig.) 

 Wiirtemberg, 183 

 Wyoming, 161, 197, 205, 217, 220, 221 



U 



Uintathere, 258 (Fig.) 

 United States, 180, 270 

 Uranium, 28 



Varanops, 186 (Fig.) 



Varaniis, 186 



Variation, 8, 117, 140, 145, 147, 245 



Velocity, 14, 97; of character, see Character 



velocity; of light, 11 

 Vertebra?, 188, 189, 252, 270, 276 



Xenon, 41 



Yapok, 239 

 Yeast, 42, 72, 287 

 Yellowstone Park, 103 



Zeuglodon, 200, 241, 242; cetoides, 260 (Fig.) 

 Zeuglodons, 269 

 Zinc, 54, 56 

 Zymase, 42 



