The science of life : fully illustrated in tone and line and including many diagrams
I—V
Tropical forest, life in, 544
Tropisms, 680
Trout, 536, 609, 727
Trypanosomes, 556, 568
Tsetse fly, 612, 628, 629
Tuatera, 469
Tuberculosis, of, 568, 625
Tube-worm, eye of the, 669, 669
Tubifex, 535
Tulip, 379
Turbot, 226
Turkestan, 540
Turtle, 113, 449, 452; an abnormally developed, 316
Twins, 338
Tylenchus scandens, 140
‘Typhlomolge, 551
Typhoid fever, 218, 631; and oysters, 640; bacillus of, 568, 622
Typhus fever, 628
Typotheres, 240, 475, 471
Tyrannosaurus, 459, 467, 449, 564
U UGA PUGILATOR, 329 Ultramicroscopic organisms, 185186 Ultramicroscopic particles, size of, 96
657-658 ; bacillus
Ultra-violet light, 186, 646, 651, 652 ; and vitamins, 639
Umbilical cord, 96, 96
Unconscious, the, 795-798
Unguiculates, 107
Ungulates, 110, 107, 471
Universe, scale of the, 391-393
Upper Cambrian period, 419
— Carboniferous period, 437
— Devonian period, 436, 441, 442
— Egypt, 483
— Jurassic period, 455, 452
— Silurian period, 416
Uranium, 255, 256
Ureter, 45, 91, 92
Urinary organs, 45
Urine, 45
Use, moulding power of, 320; and disease, in evolution, 354; in the developing embryo, 319 ~
Ussher, Archbishop, 198
Uterus, 92, 93, 94, 97, 92
Vv VACCINATION, 630, 631 Vagina, 92 Vagus nerve, the, 722 Vallisneria, 538 Vanadium, 379 Vancouver, 490 Vanua Levu, 610 Varanus, 453, 468, 564 Variation, 350, 359; and inherited, 287-290; in plants, 363. See Mutation — local, 373-377; in apes, 859; in man, 863-864 Variation, failures of, 377-379 Vas deferens, 334 Vegetables, value of green, 639 ; contamination of, 640 Vegetarianism, 635 Vegetation, belts of, 593 Veins, 36, 37, 38, 39
accidental
Printed by Hazell, Watson
INDEX
Velella, 520
Vendace, 375
Venereal disease, 633, 815, 836
Ventricles of heart, 37, 38
Venus’ Flower-basket, 524
Venus’ girdle, 152
Vertebral column, 24
Vertebrates, 105-119, 423, 456, 565; behaviour of the lower, 720-735 ; characteristics of, 107; classes of, 109; contrasted with arthropods, 120;
evolution of, 408, 422-425, 437-442, 447-461, 465-467, 470-475, 481-495, 420, 475, 499 ; flying,
Vespa. See Wasps
Vestiges, 220-299
Vestigial limbs, 220, 221
— organs in man, 253, 254
— — as evidence for evolution, 220-229
Vetch, 558
Viceroy butterfly, 573
Vienna, 632
Vill, 55
Vinciguerria, 521
Vinegar bacteria, 183
Viola tricolor, 378
Virgin reproduction, 274
Virus diseases, 185-186, 625-626
Viscera, 92
Vital energy, source of, 21-22
Vitamins, 514, 636-639
Viti Levu, 610
Vivisection, 14, 775
Vizcacha, 236, 238
Volcano of Krakatoa, 584
Volvox, 404, 674
Von Baer, 223, 224
Von Frisch, 711, 714, 715, 716, 718
Von Humboldt, Baron (1767-1835), 799
Voronoff, Serge, 90, 102, 330, 335
Vorticella, 402, 567
Vulpes, 231; V. vulpes, 231; V. zerda, 231. See Fox
Vulture, 669
W
WaAIToMO CAvEs, New Zealand, 552
Wales, 491
Wallaby, 237
Wallace, Alfred Russel (1823-1919), 242, 263, 544
Walnut, 590
Walrus, 111, 548
War, the supersession of, 871-872
Warble-fly, 556
Warblers, courtship of, 737
Warfare, primitive, 870-871
Warning coloration, 572
Wart-hog, 236, 474
Wasmann, 707
Wasps, 575, 695-697 ; solitary, 695-697 Water, as habitat, 502; contam-
ination of, 648 ; importance of, to organisms, 47; life in fresh, 531, 553 3 life in salt, 508-51e ; supply, and disease, 554, 623 Water-beetle, 534; larva of, 532, 534 Water-flea, 351, 408, 566 Water-lily, 534
F200-1130
Water-measurer, 534 Water-plantain, 587
Water-plants, early, 403 Water-scorpion, 534
Water-snail, 146
Water-spider, 534
Water-weed, Canadian, 364 Watson, Dr. J. B., 787, 788, 789,
799
Weasel, 111, 471
Weather and bacteria, 625
Weights of living things, 562-568
Weismann, August (1834-1914), 264, 280, 355
West Indies, 152
Whale, 7, 111, 112, 474, 514, 519, 549; Greenland Right, 220; sulphur-bottom, 564; whalebone, 504, 471
Whalebone, 112, 504
Whale-shark, 564
Wheat, 303, 304, 614, 615
Wheel-animalcules, 142, 567
Whelk, 131, 132
Whirligig beetles, 534
White Admiral butterfly, 573
White ants, 707-709, 709
— melilot, 587
Wholemeal bread, value of, 636
Whooping cough, 631
Wight, Isle of, 469
Williamsonia, 462
Willow, 586, 591
Windpipe, 40
Winkle, 131
Winton, Prof. W. M., 256
Wohler, 6
Wolf, 548, 471; European, 231, 232 ; maned, 231, 234; marsupial, 237 ; range of the, 231, 232; timber, 232
Wombat, 237, 235
Wood-ants, 701
Woodcock, 570
Woodlouse, 413, 542
Woodpecker, 378; North American, 23
Word-blindness, 769
Word-deafness, 769
Worms, 137, 138, 139, 140, I41, 142; evolution of, 406; eyes of, 667 ; flat, 140; intelligence in, 677; marine, 138, 145; nemertine, 142 ; parasitic, 139 ; round, 138; segmented, 406
Wren, common, 571, 737 :
Wrens, geographical variation in,
/
Wo ae Bad Lands of, 202 Wyville-Thomson ridge, 488, 489 Y
YEAST, 174, 176
Yellow fever, 612, 629 ** Yeoman ** wheat, 304 Ypsipetes trifasciata, 361 Yucca, 464, 692
Li ZEBRA, I10, 203, 236, 377, 235 Zeuglodont, 474, 471 Zoaea larva, 513 Zones of the sea, 509 Zoophyta, 149 Zostera, 538 Zygote, 273
& Viney, Ltd., London and A ylesbury,