| PAGE | |
| Abyla | [63] |
| Acanthometra | [57] |
| Actinea Cari, varieties of | [66] |
| —— mesembryanthemum | [54] |
| Acanthostratus | [57] |
| Actinozoa | [51], [52] |
| Æschna | [77] |
| Agalma breve | [64] |
| Agrion puella | [77] |
| Aiptasia mutabilis | [67] |
| Albinism in butterflies | [79] |
| Alcyonariæ | [54] |
| Allman, Prof., on Hydroids | [59], [60] |
| "Alps and Sanctuaries" quoted | [36] |
| Amœba | [56] |
| Amphibia | [89] |
| Amphilonche | [57] |
| Andres, Dr., on Hydrozoa | [65] |
| Anemonia sulcata | [67] |
| Anemones, Sea | [52] |
| Animals and Plants, origin of | [36] |
| —— classification of | [49] |
| Anœchtochilus | [95] |
| Anteater | [93] |
| Anthocaris belemia | [41] |
| —— belia | [42] |
| —— cardamines | [41], [42] |
| —— euphemoides | [43] |
| —— eupheno | [42] |
| —— simplonia | [42] |
| Apatura iris | [46] |
| —— larvæ of | [81] |
| Arachnida | [82] |
| Araschnia Levana | [43], [45] |
| —— porima | [43], [45], [79] |
| —— prorsa | [43], [45] |
| Arctia | [69] |
| Arachnocorys | [57] |
| Argus Pheasant | [6], [39], [91] |
| Argynnis Lathonia | [69] |
| Armadillo | [84] |
| Arthropoda, colouration of | [85] |
| Ascidians | [35] |
| Automatic habits | [9] |
| Arthorybia rosacea | [64] |
| Badger | [93] |
| Begonia | [95] |
| Birds, colouration of | [89] |
| —— of Paradise | [90] |
| Biston betularia | [79] |
| Black and White, production of | [28] |
| Blackwell, J., on British Spiders | [82] |
| Blatta | [14] |
| Bougainvillea | [16] |
| Bower Birds | [5] |
| Bunodes crassicornis | [54] |
| —— gemmaceus, varieties of | [66] |
| —— rigidus | [67] |
| Burnet Moths | [5], [69] |
| Butler S., on inherited memory | [9], [10], [11], [15] |
| —— on origin of animals and plants | [36] |
| Butterflies, albinism in | [79] |
| —— classification of | [74] |
| —— sense organs of | [30] |
| —— varieties of | [77] |
| Caladium | [95] |
| Calathea | [96] |
| Calycophoridæ | [63] |
| Carcinus mœnas | [4] |
| Carcinus mœnas | [4] |
| Carpocanium | [57] |
| Cats, colouration of | [17], [92] |
| —— recognising form | [32] |
| Caterpillars, colours of | [81] |
| —— spiracular markings | [22] |
| Cephalopoda | [87] |
| Cerithium | [86] |
| Char | [88] |
| Chlorophyll in hydra | [59] |
| Cicada | [77] |
| Cladococeus | [57] |
| Classification of animals | [49] |
| —— of butterflies | [74] |
| Cœlenterata | [20] |
| —— colouration in | [51] |
| Cœlodendrum | [57] |
| Cœnonympha davus | [79] |
| —— pamphilus | [79] |
| Cœnosarc | [55] |
| Coleus | [95] |
| Colour and form | [32] |
| —— and transparency | [53] |
| —— epidermal | [72] |
| —— following structure | [83], [91] |
| —— hypodermal | [53], [73] |
| —— nature of | [25] |
| —— of day-and-night flying insects | [47], [69] |
| —— opaque | [53] |
| —— perception of | [5], [23], [25], [32] |
| —— uniform, why rare | [28] |
| Colouration | [3] |
| —— laws of | [21], [51] |
| —— of desert animals | [4] |
| —— of arthropoda | [85] |
| —— of cœlenterata | [51], [59] |
| —— of insects | [68] |
| —— of invertebrata | [49] |
| —— of molluscs | [85] |
| —— of plants | [94] |
| —— of protozoa | [51] |
| —— of spiders | [82] |
| —— of vertebrata | [88] |
| —— sexual | [5] |
| —— varieties of | [3] |
| Contour feathers | [91] |
| Conus | [86] |
| Coppinia arcta | [60] |
| Corallium rubrum | [54] |
| Corals | [54] |
| Correlation of teeth and hair | [94] |
| Corynida | [52] |
| Cowries | [86] |
| Crab, shore | [4] |
| Croton | [46] |
| Cuttle-fishes | [19], [87] |
| Cyllo leda | [45] |
| Cynthia cardui | [68] |
| Cypræa | [86] |
| Cyrtidosphæra | [57] |
| Dallas, W. S., on butterflies | [71] |
| Danais | [72] |
| —— niavius | [30], [80] |
| Darwin, C. | [1], [2], [5], [9], [11], [14], [45], [47], [94] |
| Darwin, Dr. E., cited | [37] |
| Deer | [92] |
| Deformity, antipathy to | [32] |
| Deilephila Euphorbiæ | [81] |
| —— galii | [81] |
| Descent with modification | [1] |
| Desert animals, colour of | [4] |
| Dictyoceras | [57] |
| Dictyophimus | [57] |
| Diphyes | [63] |
| Disease, markings in | [39], [44] |
| Distant, W. L., on Malayan butterflies | [80] |
| Distinctive Colouration | [3] |
| Dogs recognising portraits | [32] |
| Dracæna ferrea | [96] |
| Elephant, increase of | [2] |
| Engelmann on Euglena | [34] |
| Epidermal colour | [72] |
| Eresus cinnabarinus | [82] |
| Eucecryphalus | [57] |
| Eucrytidium | [57] |
| Euglena viridis | [34] |
| Evolution | [1]-[98] |
| Eye-spots | [45], [47] |
| Fayrer, Sir W., on snakes | [89] |
| Feathers | [91] |
| Fishes, colours of | [88] |
| Foal, stripes on | [46] |
| Foraminiferæ | [56] |
| Fuller, W. J., on aquatic larvæ | [77] |
| Gamopetalous flowers | [96] |
| Gegenbaur's "Comparative Anatomy" cited | [82] |
| General colouration | [3] |
| Gloxinia | [96] |
| Gomphina | [77] |
| Gonepteryx Cleopatra | [41], [42] |
| —— rhamni | [40], [42] |
| Gonophores | [52] |
| Grapta interrogationis | [79] |
| Gregarinidæ | [56] |
| Guinea-fowl | [91] |
| Haagen, Dr., on colour | [53], [72] |
| Habits | [8] |
| Haeckel, Prof., on Radiolaria | [57] |
| Hair and teeth, correlation of | [94] |
| Hawk moths | [69] |
| Hebrides, colours of insects in | [80] |
| Heredity | [2] |
| Herpes | [40], [93] |
| Heteromorphism | [78] |
| Higgins, Rev. H. H. | [39] |
| Hoverer flies | [84] |
| Humming birds | [90], [92] |
| Hutchinson, Mr., on herpes | [40] |
| Huxley, Prof., on hydrozoa | [63] |
| Hydra viridis | [59] |
| Hydrida | [59] |
| Hydrozoa | [51], [59] |
| Hypodermal colour | [53], [72] |
| Identity of offspring and parent | [11] |
| Identity, personal | [10] |
| Inherited memory | [8] |
| Insects, colour in | [68], [75] |
| John Dory | [89] |
| Kallima inachus | [30], [80] |
| Kentish Glory Moth | [30] |
| Lamium galeobdolon | [96] |
| Lankester, Prof. Ray, on development of eyes | [97] |
| Large Copper Butterfly | [68] |
| Larvæ, colours of | [45], [81] |
| Laws of emphasis | [21] |
| —— exposure | [18] |
| —— heredity | [2] |
| —— multiplication | [2] |
| —— repetition | [21], [22] |
| —— structure | [18] |
| —— variation | [2] |
| Leaf-butterfly | [16], [30] |
| Leidy, Prof., on Rhizopoda | [56] |
| Leopard | [17], [92] |
| Leucophasia diniensis | [41] |
| —— sinapis | [41] |
| "Life and Habit" cited | [9] |
| Light, reflected | [26] |
| —— sensibility to | [33] |
| —— waves | [25] |
| Liminitis sibilla | [43] |
| Lion | [17], [92] |
| —— stripes on young | [46] |
| Lithocysts of hydroids | [62] |
| Lucernaria auricula | [65] |
| Lycæna dispar | [68] |
| Lycosa agretyca | [83] |
| —— allodroma | [83] |
| —— andrenivora | [83] |
| —— cambria | [84] |
| —— campestris | [83] |
| —— latitans | [84] |
| —— picta | [84] |
| —— piratica | [84] |
| —— rapax | [83] |
| Mackerel | [88] |
| Mactra | [86] |
| —— stultorum | [87] |
| Madrepores | [54] |
| Mammalia, colouration in | [92] |
| Margarita catenata | [87] |
| Measles | [39] |
| Medusæ | [52], [65] |
| Melanism in insects | [79] |
| Meldola, Prof. R., on Melanism | [79] |
| Melitæa artemis | [43] |
| —— athalia | [43] |
| Mimicry | [3], [4] |
| Mollusca | [21] |
| —— colouration in | [85] |
| Monstrosities, antipathy to | [32] |
| Morphinæ | [72] |
| Morpho | [4] |
| Murex | [86] |
| Muscles of insects | [71] |
| Nectarinea chloropygea | [90] |
| Newman, Mr., on varieties of butterflies | [77] |
| Newts | [89] |
| Nitzsch on feather-tracts | [91] |
| Nudibranchs | [85] |
| Nymphalidæ | [74] |
| Oak Egger Moth | [30] |
| Ocelli | [47] |
| Ocelot | [93] |
| Oliva | [86] |
| Opaque colouring | [53] |
| Organ-pipe coral | [54] |
| Origin of animals and plants | [36] |
| —— — species | [1] |
| Orthopœcilism | [78] |
| Oxen | [94] |
| Painted Lady Butterfly | [68] |
| Pangenesis | [12] |
| Papilio Ajax | [79] |
| —— machaon | [43], [68], [76], [78] |
| —— —— larva of | [81] |
| —— merope | [30], [76], [80] |
| —— nireus | [14] |
| —— podalirius | [43] |
| Paradisea Papuana | [90] |
| —— regia | [90] |
| —— speciosa | [90] |
| —— Wallacei | [90] |
| —— Wilsoni | [90], [91] |
| Pavetta Borbonica | [96] |
| Pecten | [86] |
| Pelargonium | [96] |
| Perch | [88] |
| Personal identity | [10] |
| Physalia | [63] |
| —— caravilla | [64] |
| —— pelagica | [64] |
| —— utriculus | [64] |
| Physophoridæ | [63] |
| Plaice | [88] |
| Plants and animals, origin of | [36] |
| —— colour in | [95] |
| Pneumatophores | [63] |
| Portuguese Man o' War | [63] |
| Protective resemblance | [3] |
| Protista | [34] |
| Protozoa | [20] |
| —— colouration in | [51], [56] |
| Python | [89] |
| Radiolaria | [57] |
| Rarity of uniform colour | [28] |
| Ray Lankester, Prof., on Ascidians | [35] |
| Red Admiral Butterfly | [29] |
| Repetition, effects of | [8] |
| Reptilia, colouration in | [89] |
| Resemblance, Protective | [3] |
| Rhizophora filiformis | [64] |
| Rhizopoda | [56] |
| Rhododendron | [96] |
| Ringlet Butterflies, eye-spots of | [47] |
| Roach | [88] |
| Romanes, Prof., cited | [33], [34] |
| Satyrus hyperanthus | [79] |
| Scales of insects, structure of | [72] |
| Scarlet Tiger Moth | [5] |
| Sea anemones | [52] |
| —— —— colours of | [67] |
| Seasonal dimorphism | [70] |
| Sea squirts | [35] |
| Segestria senoculata | [83] |
| Selection, sexual | [5] |
| Self-coloured flowers | [28] |
| Sense organs of Butterflies | [30] |
| Sertularidæ | [63] |
| Sexual colours | [4] |
| —— selection | [5] |
| —— dimorphism | [70] |
| Shell, Structure of | [85] |
| Shore Crab | [4] |
| Simple variation in Butterflies | [77] |
| Siphonophora | [63] |
| Small pox | [39] |
| Snakes, patterns of | [89] |
| Sollas, Prof., on Sponges | [58] |
| Soles | [88] |
| Sparassus smaragdulus | [82] |
| Species, origin of | [1] |
| Sphæronectes | [63] |
| Sphingidæ | [45], [69] |
| Spiders, structure and colour of | [82] |
| Spiracles of larvæ | [22] |
| Spondylus | [86] |
| Sponges | [57] |
| Spongida | [57] |
| Spongocyclia | [57] |
| Spots and Stripes | [39] |
| Stephanomia amphitridis | [63] |
| Struggle for existence | [2] |
| Sun-birds | [90] |
| Sus vittatus | [46], [94] |
| Sutton, Mr. Bland, on Herpes | [40] |
| Swallow-tailed Butterflies | [68] |
| Syncoryne pulchella | [62] |
| Systems of colouration | [51] |
| Teeth and Hair, correlation of | [94] |
| Thomisus cinereus | [82] |
| —— floricolens | [82] |
| Thomisus luctuosus | [84] |
| —— trux | [82] |
| Thrush, increase of | [2] |
| Tiger | [17], [92] |
| —— Moths | [69] |
| Tipula | [33] |
| Toucans | [90], [92] |
| Transparency and colour | [53] |
| Trigonia | [86] |
| Tubipora musica | [54] |
| Tubularida | [59] |
| Tylor, A., on Specific change | [10] |
| Vanessa Antiopa | [76] |
| —— atalanta | [29], [43], [69] |
| —— urticæ | [77] |
| Variation in insects | [70] |
| —— law of | [2] |
| —— simple, in Butterflies | [77] |
| Velella | [52], [65] |
| Vertebrata, colouration of | [88] |
| Viverridæ | [94] |
| Wallace, A. R., on sexual selection | [5], [6], [14], [15] |
| —— on colour | [29] |
| —— on abnormal structures | [94] |
| Warning colours | [4] |
| Wasps | [84] |
| Weir, J. Jenner, on variation in insects | [78] |
| Weismann, Dr., on Caterpillars | [81] |
| Wing of Butterfly, typical | [70] |
| —— patterns of | [76] |
| Woodpecker | [91] |
| Yellow Archangel | [96] |
| Zebra | [92] |
| Zygæna | [69] |
Fig. 4.—Python.
Showing vertebra-like markings.
Fig. 5.—Tiger.
The pattern changes at the points lettered.