Stickleback, origin of, 92, 143, 166-167 Stoat, range of, 90-91, 135-136 Straits of Gibraltar, age of, 277-278, 281 _Strix flammea_, 98 _Strongylocentrotus lividus_, 125 Struckmann, C., 153 Studer, Th., 340 Sub-marine plateau between Norway and Spitsbergen, 154 Suess, E., 61, 273, 282, 303 _Sus scrofa_, 44-46 Swallow-tail Butterfly, 264-265 _Syrrhaptes paradoxus_, 41, 205 Tailless Hare, 41 _Talpa_, 291 Taylor, J. W., 105 Tcherski, J. D., 214-215, 222 Tertiary plants in Greenland, 144-145 _Testacella_, 17, 299 _haliotidea_, 299 _maugei_, 102, 299 _scutulum_, 299 _Tetrao_, 28 _urogallus_, 28, 143, 336-337 _Tetrastes bonasia_, 337 _Tettix_, 330 _bipunctatus_, 330 _Thais cerisyi_, 265 _Thelphusa fluviatilis_, 270, 281 Thomas, O., 90 Thompson, W., 32 Time of disconnection between Great Britain and Ireland, 63 Titmouse, bearded, 292 Toad, Natterjack, 30 Tree-frog, 260, 280 _Trichomanes radicans_, 115 _Tropidonotus viperinus_, 294 _Tubella pensylvanica_, 94 Tundras in Northern Europe, 209-210 _Turnix sylvatica_, 291-292 Tyndall, J., 68 _Typhlops lumbricalis_, 259 Tyrrhenian Continent, 280 _Unio (Margaritana) margaritifer_, 93 _Ursus maritimus_, 134 Ussher, R. J., 92, 105 _Vanessa cardui_, 98 _Vertigo alpestris_, 93 Viper, range of, 192 Vole, range of, 313-314 Wagtails, origin and range of, 254, 292 Wallace, A. R., 12-13, 18-19, 23, 58, 99, 111, 304 Warming, E., 76, 163 Watson, H. C., 100 Wax-bill, migrations of, 205 Welch, R., 298 West-Indian land-shells, 21 White, Buchanan, 509, 113 Willow-grouse, 91, 142 Woodward, B. B. (_vide_ Kennard and Woodward) Wright, J., 84 Zittel, 252 _Zonites_, 49, 195, 322-323 THE END. THE WALTER SCOTT PRESS, NEWCASTLE-ON-TYNE. The Contemporary Science Series. Edited by Havelock Ellis. I. THE EVOLUTION OF SEX. By Prof. PATRICK GEDDES and J. A. THOMSON. With 90 Illustrations. Third Edition. 3s. 6d. "The authors have brought to the task--as indeed their names guarantee--a wealth of knowledge, a lucid and attractive method of treatment, and a rich vein of picturesque language."--_Nature_. II. ELECTRICITY IN MODERN LIFE. By G. W. DE TUNZELMANN. With 88 Illustrations. 3s. 6d. "A clearly-written and connected sketch of what is known about electricity and magnetism, the more prominent modern applications, and the principles on which they are based."--_Saturday Review_. III. THE ORIGIN OF THE ARYANS. By Dr. ISAAC TAYLOR. Illustrated. Second Edition. 3s. 6d. "Canon Taylor is probably the most encyclopædic all-round scholar now living. His new volume on the Origin of the Aryans is a first-rate example of the excellent account to which he can turn his exceptionally wide and varied information.... Masterly and exhaustive."--_Pall Mall Gazette_.