INDEX.
- Acorn, 141, 144, 146, 175, 177
- Air, carbon dioxide in, 31, 33
- Air-chamber of hen’s egg, 283, 285
- Air sacs of birds, 279
- Albumin, 285
- Alder, 142, 149
- Allantois, 289, 293
- Alternation of generations, 189, 196
- Amnion, 288, 290
- Anemone, 97, 98
- Animals and plants, resemblances and differences, 243
- Annual, meadow grass, 135; rings, 73
- Anterior, 217
- Anther of stamen, 91
- Aorta, 236, 238
- Appendages of crayfish and lobster, 373, 375
- Apple, 104, 106; fruit of, 176, 179
- Apricot, 106
- Aquarium, a simple, 340
- Arachnids, 378
- Arteries, 237, 238
- Arteries, pulse in, 235, 239
- Arthropods, 351
- Arum, 122
- Ash, 153, 156; fruit of, 171, 173; mountain, 157
- Aspen, 152
- Auricles of heart, 235, 237
- Awn, 129, 130, 131
- Axil of leaf, 45, 47
- Backbone, of pigeon, 269; of rabbit, 217, 222, 227
- Bacteria, 209
- Balancers of hen’s egg, 283, 285
- Bark, 74
- Bast, 71, 72
- Bat, 255, 256
- Bean seed, 1, 2, 5;
- germination of, 9, 13;
- starch in, 2
- Beech, 142, 145, 147; fruit of, 175, 178
- Beetle, a water, 357
- Beetles, 362
- Berries, 175, 179
- Biennials, 31, 96
- Bile, 232, 234
- Birch, 142, 147, 148
- Birds, 269
- Bird’s foot trefoil, 102
- Black bent, 135
- Blackberry, 103, 105;
- fruit of, 175, 179;
- leaves, 38, 41, 105
- Blackbird, 302, 307
- Bleeding of stems, 67, 70
- Blood, 233, 235, 242;
- circulation of, 235;
- red corpuscles of, 237, 242
- Blue mould, 207, 208
- Bone, structure of a long, 223, 228
- Bones,
- of birds, 269;
- of pigeon, 274;
- of rabbit, 222
- Box leaves, 44, 45
- Bracken fern, 184, 189
- Bracts of anemone, 97, 99;
- of daisy, 111;
- of dandelion, 113;
- of lime, 152, 154, 155, 174
- Branches, position of, 45, 47
- Breast bone, of pigeon, 269;
- of rabbit, 217, 223, 227
- Breathing, definition of, 242;
- necessity for, 241;
- of cockroach, 355;
- of crustaceans, 376, 377;
- of fresh-water mussel, 381;
- of frog, 333, 337;
- of mammals, 242, 243;
- of snails, 382, 383;
- of tadpole, 344
- Breathing organ of chick-embryo, 289, 294
- Broad bean seed, 1, 2, 5
- Broccoli, 96
- Broom, 101
- Brussels sprouts, 96
- Bud, a typical, 55, 58
- Buds, 55, 69;
- bursting of, 56, 61, 64;
- of ash, 153, 156;
- of horse chestnut, 57, 63;
- of sycamore, 56, 60;
- position of, 45, 50
- Bulb, 81, 84
- Burrows of earthworms, 384, 385
- Buttercup, 96, 97; family, 96, 97
- Butterflies, cabbage-white, 362, 365
- Calamites, 196
- Calceolaria, 116
- Calyx, 90
- Cambium, 72
- Candytuft, 94
- Canine teeth, 246, 248, 255
- Capillaries, 237, 240
- Capsule, 168
- Carbon,
- contained in plants, 31, 33;
- contained in starch, 32
- Carbon dioxide,
- formed by living body, 240, 241;
- formed when flesh burns, 240, 241;
- formed when wood burns, 31;
- in air, 31, 33
- Carnivores, 254
- Carpel, 96, 98
- Carrot, 96, 108
- Castings of earthworms, 384, 386
- Cat, 246, 250, 252, 254
- Catkin, 146
- Catkins,
- of alder, 142, 149;
- of beech, 142, 148;
- of birch, 142, 148;
- of hazel, 142, 149;
- of oak, 141, 144, 145;
- of poplar, 151;
- of willow, 150, 151
- Caterpillar,
- of cabbage-white butterfly, 362, 365;
- of tiger-moth, 364, 369;
- of vapourer-moth, 364, 370
- Cauliflower, 96
- Celery, 108
- Centipedes, 378
- Cephalothorax of crab, 373, 376;
- of crayfish and lobster, 373, 375
- Cherry, 103, 105, 106;
- fruit of, 175, 179
- Chestnut, horse, 38, 42, 47, 57, 63, 65, 157, 159;
- Spanish or sweet, 148
- Chick, development of, 286, 289;
- education of, 295, 296;
- embryo of, 287, 289;
- hatching of, 294, 295
- Chitin, 251
- Chrysalis, 366
- Claws of cat, 247, 251
- Cleavers, 175, 177
- Climbing stems, 75
- Clitellum of earthworm, 383, 386
- “Clock” of dandelion, 112, 171, 172
- Clover, 101, 102
- Cockroach, 349, 351;
- habits of, 356;
- life-history of, 356;
- position of in insect class, 357;
- structure of, 355
- Cocoon of earthworm, 386;
- of tiger-moth, 364, 369
- Coleoptera, 362
- Collar of mushroom, 203, 205;
- of garden snail, 379
- Collecting, 389, 390
- Colour,
- of flowers, 93;
- of fruits, 182
- Compositae, 114
- Cone-bearing trees, 160, 161
- Cones of alder, 149;
- of horsetail, 191, 192, 194, 195;
- of larch, 161, 163;
- of Scotch pine, 160, 162, 171, 174;
- of spruce fir, 163, 171, 174
- Convolvulus, 76, 78, 79
- Cork, 75
- Corm, 81, 85
- Corolla, 91
- Corona, 120, 122
- Cotyledons, 13, 16, 22, 23;
- of bean, 2, 6
- Cowslip, 109, 110
- Crayfish, 372, 374
- Creeping stems, 80, 82
- Cress, 94, 96
- Crocus corm, 81, 85
- Crop of pigeon, 271
- Cross fertilisation, 92, 102, 110, 118, 122, 151
- Crow, 312, 318, 320; family, 312, 320
- Crucifers, 95
- Crustaceans, 372, 377
- Cuckoo, 322, 324; cuckoo-pint, 122
- Currants, 176, 179
- Cushion-feet of caterpillar, 365
- Daffodil, 84, 85, 120, 122
- Daisy, 111, 112
- Dandelion, 112, 113; fruit of, 171, 172
- Deadnettle, 117
- Deer, 261
- Dentine, 219
- Development of chick, 286, 289;
- of frog, 340
- Diaphragm, 218
- Diastase, 234
- Dicotyledons, 23, 40, 72
- Digestion, 231, 233; definition of, 233
- Digestive canal of frog, 231;
- of rabbit, 232
- Diptera, 370
- Dispersal of insects, 370;
- of seeds, 165
- Dissection, 214
- Dog, 248, 251, 252, 254
- Donkey, 261
- Dorsal, 217
- Down feathers, 273, 277
- Dropwort, water, 108
- Duck, 326, 327
- Dytiscus,
- habits and structure of, 357, 358;
- life-history of, 361
- Ear, of grass, 130
- Ears, of rabbit, 218
- Earthworms, 383, 384
- Education of young animals, 248, 249, 262
- Eggs,
- of cabbage-white butterfly, 362;
- of cockroach, 357;
- of Dytiscus, 361;
- of earthworm, 386;
- of frog, 339, 340, 341;
- of hen, 282, 284;
- of Limnaea, 380
- Elm, 152, 153;
- fruit of, 171, 173
- Embryo, 12;
- of chick, 287, 289;
- of fern, 188, 191;
- of horsetail, 195
- Enamel, 219
- Endosperm, 22
- Evolution, a case of, 338
- Extinct horsetails, 196
- Eyes,
- of butterfly, 363, 367, 368;
- of cat, 246, 250;
- of cockroach, 348, 352;
- of crab, 373;
- of crayfish and lobster, 372;
- of dog, 248, 251;
- of pigeon, 271;
- of rabbit, 218;
- of snail, 379, 382
- Falcon, 272, 330
- Fantail pigeon, 280
- Feathers of pigeon, 265, 266, 267, 270, 275, 276
- Feelers,
- of butterfly, 363, 367;
- of cockroach, 349, 352;
- of crayfish and lobster, 372, 373, 374, 375;
- of Dytiscus, 358, 359;
- of moth, 364, 368, 369
- Fehling’s solution, 230
- Ferns, 183;
- bracken, 184, 189;
- hart’s tongue, 185, 190, 191;
- male fern, 183, 185
- Fertilisation, 92;
- of ferns, 188;
- of forest trees, 146;
- of foxglove, 116;
- of grasses, 131;
- of horsetail, 195;
- of moss, 202;
- of oak, 145;
- of primrose, 109;
- of red clover, 101;
- of Scotch pine, 162
- Fescues, 132, 134
- Fieldfare, 303, 309
- Field work, 388
- Filament of stamen, 91
- Fir, spruce, 161, 163
- Flight of bird, 278
- Flower,
- of a grass, 128, 129;
- of wallflower, 88, 89
- Flowerless plants, 197
- Flowers, work of, 89
- Food, carbonaceous, of plants, 34, 35;
- mineral, of plants, 29;
- necessity of, 230;
- obtained from air, 31, 34;
- obtained from soil, 26, 29;
- of mushroom, 204, 206;
- of young seedling, 28
- Fool’s parsley, 108
- Fowls, 296, 299
- Foxglove, 114, 115; family, 114, 115
- Foxtails, 132, 134, 135
- Frog,
- development of, 340;
- digestive canal of, 231;
- life of, 332, 334
- Fronds of ferns, 65, 183, 184, 186, 189
- Fruit, 166
- of apple, 176, 179;
- of ash, 171, 173;
- of beech, 175, 178;
- of blackberry, 175, 179;
- of buttercup, 98;
- of cherry, 175, 179;
- of dandelion, 171, 172;
- of elm, 171, 173;
- of field geranium, 165, 168;
- of gooseberry, 175, 179;
- of hazel, 175, 177;
- of herb bennet, 174, 177;
- of lime, 174;
- of oak, 175, 177;
- of pansy, 166, 169;
- of pea, 7, 165, 168;
- of pear, 176, 180;
- of penny-cress, 165, 168;
- of plum, 175, 179;
- of poppy 166, 168;
- of raspberry, 175, 179;
- of rose, 176, 180;
- of shepherd’s purse, 165;
- of strawberry, 176, 180, 181;
- of sycamore, 3, 171, 173;
- of vegetable marrow, 176, 179;
- of violet, 166, 169;
- of wallflower, 165, 167;
- of willow, 171, 173;
- of wood avens, 174, 177
- Fruits, colour of, 182; hooked, 174, 177
- Funaria, 199, 202
- Fungi, 206, 244
- Fur,
- of bat, 256;
- of cat, 246, 250;
- of rabbit, 212, 216
- Galls, 141, 146
- Gastric juice, 232, 233
- Geranium, fruit of, 165, 168
- Germinal disc, 285, 287, 289
- Germination, 12, 21
- Gills,
- of crab, 374;
- of crayfish and lobster, 373, 376;
- of fresh-water mussel, 379, 381;
- of mushroom, 203, 205;
- of tadpole, 341, 344, 346
- Gizzard of pigeon, 271
- Gloxinia, 116
- Glumes, 129, 130
- Goats, 261
- Gooseberry, 175, 179
- Goose grass, 175, 177
- Gorse, 101
- Grapes, 176, 179
- Grasses, 125
- Grass,
- flowers of, 128, 129;
- reproduction of, 128
- Grass stems, 72, 75
- Grinding teeth of rabbit, 219
- Gullet, 231, 232
- Gymnosperms, 72, 163
- Hair,
- of cat, 246, 250;
- of dog, 248, 251;
- of sheep, 258
- Hart’s tongue fern, 185, 190, 191
- Hatching,
- of chick, 294, 295;
- of tadpole, 340, 344
- Haulms,
- of grasses, 125, 127;
- of horsetail, 191, 192, 193, 194
- Hawks, 329
- Hawthorn, 106
- Hazel, 142, 149; fruit of, 175, 177
- Head,
- of clover, 101, 102;
- of daisy, 113;
- of dandelion, 113
- Heart,
- beats of, 235, 239;
- of chick-embryo, 288, 291;
- of cockroach, 350, 355, 356;
- sheep’s, structure of, 235, 237;
- valves of, 236, 238, 239
- Hemiptera, 370
- Hemlock, poison, 106, 107; water, 108
- Hen, eggs of, 282, 284
- Herb-bennet, fruit of, 174, 177
- Heredity, 217, 339
- Hip bones of rabbit, 223, 228
- Hip of rose, 176, 180
- Honey-dew, 158
- Honeysuckle, 78
- Hoofed mammals, 257
- Hoofs, 258, 259, 261
- Hooked fruits, 174, 177
- Hooking stems, 75
- Horns, 257, 259
- Horse, limbs of, 261
- Horse chestnut, 157, 159;
- buds of, 57, 63;
- leaves of, 38, 42, 47, 64
- Horsetail, 191
- House-martin, 311, 315
- House-sparrows, 315, 320
- Hovering, 279, 331
- Hyacinth, 84, 119, 120
- Hymenoptera, 370
- Hypha of mushroom, 205
- Hyphae of moulds, 208, 209
- Imago, 363
- Incisor teeth of rabbit, 213, 219
- Incubator, a simple, 286
- Insect, definition of, 351
- Insects, 349
- Instinct, 252, 296
- Internodes, 45
- Intestines, 231, 232
- Iodine solution, 2
- Irritability, 116
- Ivy, leaves, 38, 43; stem, 75, 77, 78
- Jacobin pigeon, 280
- Jaws,
- of cockroach, 349, 352, 354;
- of crayfish, 375;
- of rabbit, 222, 226;
- of sheep, 257, 259
- Keel,
- of bird’s breast-bone, 274;
- of pea flower, 100, 102
- Kestrel, 329, 330
- Keys,
- of ash, 153, 156;
- of sycamore, 159
- Kittens, 248
- Labial palps, of cockroach, 353;
- of Lepidoptera, 367
- Labiates, 117
- Labium,
- of caterpillar, 363, 365;
- of cockroach, 349, 353
- Labrum of cockroach, 349, 352
- Laburnum, 101, 102
- Lambs, 258, 262
- Lark, 311, 316
- Larva, of cabbage-white butterfly, 362, 365;
- of Dytiscus, 361;
- of tiger-moth, 364, 369;
- of vapourer-moth, 364, 370
- Leaf fall, 55, 59
- Leaf of a grass, 127
- Leaves, arrangement of, 44;
- of blackberry, 38, 41, 105;
- of box, 44, 45;
- of ferns, 65, 183, 184, 185, 186, 189, 191;
- of horse chestnut, 38, 42, 47, 64;
- of ivy, 38, 43;
- of rose, 38, 42;
- of sweet pea, 39, 43;
- of sycamore, 38, 42, 58, 157, 158;
- shapes of, 37, 40;
- simple and compound, 41;
- skeleton, 37, 39;
- veins of, 37, 39;
- work of, 48
- Legume, 165, 168
- Ligule, 125, 127
- Lily family, 119, 120
- Limbs, movement of, 225;
- of cat, 246;
- of chick-embryo, 288, 292;
- of dog, 248;
- of pigeon, 266, 270;
- of rabbit, 216, 223, 228;
- of sheep, 259, 261
- Lime, 152, 154, 155; fruit of, 174
- Limnaea, 379, 382
- Liver, 232, 233
- Liverwort, 199, 200
- Lobster, 372, 374
- Locomotion,
- of cat, 247, 251;
- of crab, 377;
- of dog, 249, 251;
- of earthworm, 383, 385;
- of fresh-water mussel, 380;
- of garden snail, 379, 382;
- of insects, 353, 360, 368;
- of rabbit, 216
- Lombardy poplar, 150, 152
- “Lords and Ladies,” 122
- Lupine seed, 3, 7, 11, 14
- Maize seed, 18, 19; germination of, 21
- Male fern, 183, 185
- Mammals, 220
- Mandibles,
- of caterpillar, 365;
- of cockroach, 349, 352;
- of crayfish and lobster, 373, 375
- Mantle of fresh-water mussel, 378, 381;
- of garden snail, 379, 381
- Maps, use of, in Nature-study, 389
- Marjoram, 118
- Marsh marigold, 97, 98
- Martin, house, 311, 315; sand, 311, 315
- Mast of beech, 142
- Mastication, 219
- Mavis, 301, 303
- Maxillae,
- of cockroach, 350, 353;
- of crayfish and lobster, 373, 375;
- of Lepidoptera, 367
- Maxillary palps of cockroach, 353
- Maxillipedes of crayfish and lobster, 373, 375
- Meadow,
- catstail, 132, 136;
- fescue, 132, 134;
- flower of, 131;
- foxtail, 132, 134, 135;
- grasses, 132, 135;
- vetchling, 101
- Medullary rays, 74
- Metamorphosis of frog, 346
- Mineral matter in plants, 26, 28, 29
- Mint, 118
- Missel-thrush, 302, 306
- Molluscs, 378
- Monkshood, 99
- Monocotyledons, 23, 40
- Mosses, 199, 201
- Moth, 368;
- tiger-moth, 364, 369;
- vapourer-moth, 364, 369
- Moulds, 207, 208
- Moulting of birds, 277, 327, 329
- Mountain ash, 157
- Mucor, 207, 208
- Mullein, 116
- Muscles, action of, 224, 225
- Mushroom, 203
- Musk, 115, 116
- Mussel, fresh-water, 378, 380
- Mustard, 94, 96; seed, 3, 7, 11
- Mycelium,
- of moulds, 208, 209;
- of mushroom, 203, 205
- Myriapods, 378
- Narcissus, 120
- Natural selection, 217, 338
- Nectary, 90
- Neuroptera, 370
- Nodes, 45
- Nuts, 175, 177
- Oak, 140, 142;
- family, 140;
- fruit of, 175, 177
- Oat, 133, 136
- Oranges, 176, 179
- Orthoptera, 357
- Ovary, 92
- Ovule, 92
- Oxen, 261
- Oxygen, liberated by leaves, 48, 51
- Pales, 129, 130
- Pancreas, 232, 233
- Pancreatic juice, 232, 234
- Panicle, 130
- Pansy, fruit of, 166, 169
- Parsley, 108;
- family, 106, 107;
- fool’s, 108;
- hedge, 107
- Parsnip, 108
- Passerine order of birds, 320
- Pea, 99;
- family, 99, 101;
- fruit of, 7, 165, 168;
- leaves of, 39, 43;
- seed, 2, 7;
- seed, germination of, 9, 13
- Pear, 104, 106; fruit of, 176, 180
- Pellia, 199, 200
- Penicillium, 207, 208
- Perching of pigeon, 271
- Perennial rye grass, 133, 137
- Perianth, 119, 121
- Pericarp, 167
- Petal, 91
- Pets, 214
- Pigeon, 265, 270
- Pigeons, different breeds of, 279
- Pine cones, 160, 162, 171, 174
- Pine, Scotch, 160, 161
- Pistil, 91
- Plane, 157, 159
- Plants and animals, resemblances and differences, 243
- Plants, respiration of, 243
- Play of young animals, 248, 249, 258, 262
- Plough-share bone of pigeon, 269
- Plum, 106; fruit of, 175, 179
- Plumule of bean, 2, 6
- Pod, 103
- Poison hemlock, 106, 107, 108
- Pollen, 91
- Pond-life, 340, 357, 378, 379, 390
- Pond-snails, 379, 382
- Pouter pigeon, 280
- Poplar, 150, 151
- Poppy, fruit of, 166, 168
- Posterior, 217
- Potato, 81, 84
- Poultry, 296, 299
- Precocious birds, 296, 329
- Prickles, 75, 77
- Primrose, 108, 109; fertilisation of, 109
- Proboscis of butterfly, 367
- Pro-legs of caterpillar, 365
- Protective colouration,
- of frog, 332;
- of rabbit, 217
- Prothallus,
- of ferns, 184, 185, 188, 191;
- of horsetail, 192, 195
- Pupa,
- of cabbage-white butterfly, 363, 366;
- of Dytiscus, 361;
- of tiger-moth, 364, 369
- Rabbit, 211; digestion in, 233
- Radicle,
- of bean, 2, 6;
- of lupine, 7;
- of pea, 2, 7;
- of sycamore, 4
- Radish, 94, 95
- Raspberry, 105, 175, 179
- Receptacle, 90
- Red, clover, 101;
- fertilisation of, 101;
- corpuscles of blood, 237, 242
- Reproduction,
- of a grass, 128;
- of a moss, 201;
- of ferns, 187, 188;
- of flowering plants, 89;
- of horsetail, 195;
- of liverwort, 201;
- of moulds, 208, 209;
- of mushroom, 205
- Respiration, 240;
- definition of, 242;
- of chick-embryo, 294;
- of cockroach, 355;
- of crustaceans, 376, 377;
- of fresh-water mussel, 381;
- of frog, 337;
- of mammals, 242, 243;
- of pigeon, 279;
- of snail, 379, 382, 383;
- of tadpole, 344
- Resting stage,
- of butterfly, 363, 366;
- of Dytiscus, 361
- Ribs of rabbit, 217, 223, 227
- Rock pigeon, 280
- Rodents, 220
- Rook, 312, 318
- Root cap, 17
- Root, hairs, 17, 28, 30; lengthening of, 16
- Rootlets, 17
- Roots, 17, 21, 28;
- as storehouses of food, 28, 30;
- climbing, 75, 78;
- work of, 28, 30
- Rose, 103, 104;
- family, 103;
- fruit of, 176, 180;
- leaves of, 38, 42
- Rowan tree, 157
- Ruminants, 261
- Runner, 80, 82
- Rushes, 133, 138
- Rye grass, 133, 137
- Saliva, 233, 234
- Sallow willow, 150
- Sand-martin, 311, 315
- Saugh tree, 150
- Scales of Lepidoptera, 364, 367
- Scotch pine, 160, 161
- Secondary thickening, 73
- Sedges, 133, 138
- Seeds, germination of, 9, 12;
- of broad bean, 1, 5, 9, 13;
- of maize, 18, 19;
- of mustard, 3, 7, 11;
- of pea, 2, 7;
- of sycamore, 3, 8, 11, 13;
- of vegetable marrow, 3, 7, 11;
- of wheat, 18, 19;
- of yellow lupine, 3, 7, 11
- Sepal, 90
- Sheep, 257, 258
- Sheep’s, fescue, 132, 133, 134;
- heart, structure of, 235, 237
- Shell of hen’s egg, 282, 284
- Shell,
- of fresh-water mussel, 378, 381;
- of garden snail, 379, 382;
- of slug, 382
- Shepherd’s purse, 93, 95; fruit of, 165
- Shoot, 69
- Shoulder blade of rabbit, 223, 228
- Silicula, 165, 168
- Siliqua, 165, 168
- Skeleton,
- leaves, 37, 39;
- of arthropods, 351;
- of pigeon, 268;
- of rabbit, 217, 222, 226;
- uses of, 224
- Skin of frog, 334, 338
- Skull,
- of pigeon, 268;
- of rabbit, 217, 222, 226
- Skylark, 311, 316
- Slender foxtail, 134, 135
- Smell-sense of moths, 369; of rabbit, 218
- Snapdragon, 116
- Snowdrop, 120, 122
- Soaring, 278
- Song-thrush, 301, 303
- Sounds of heart, 238
- Spanish chestnut, 148
- Sparrow, 315, 320
- Sparrow hawk, 329, 330
- Spawn,
- of frog, 339, 340, 341;
- of Limnaea, 380
- Speedwell, 115, 116
- Spiders, 378
- Spikelet, 128, 130
- Spinneret of caterpillar, 363, 365
- Spiracles,
- of cabbage-white caterpillar, 363, 365;
- of cockroach, 350, 355
- Spores,
- of ferns, 184, 185, 187, 190, 191;
- of horsetail, 195;
- of liverwort, 199, 201;
- of moss, 200, 202;
- of Mucor, 207, 208;
- of mushroom, 203, 205;
- of Penicillium, 207, 209
- Spruce fir, 161, 163; cones, 171, 174
- Squirrels, 178, 220
- Stamen, 91
- Standard, 100, 102
- Starch, 229;
- action of saliva on, 230, 234;
- formation of, in leaves, 32, 34;
- in cotyledons, 2, 6;
- in leaves, 48, 50;
- in twigs, 56;
- test for, 2, 32
- Stem, lengthening of, 16
- Stems,
- bleeding of, 67, 70;
- climbing, 75;
- creeping, 80, 82;
- duties of, 68;
- food channels in, 67, 68, 69, 71;
- hooking, 75;
- of grasses, 72, 75;
- of ivy, 75, 77, 78;
- strengthening of, 71, 72, 75;
- thickening of, 72;
- twining, 76, 79;
- underground, 80, 83
- Sternum,
- of pigeon, 269;
- of rabbit, 217, 223, 227
- Stigma, 91
- Stipules, 39, 43
- Stock, 94
- Stolon, 81, 83, 125, 126
- Stomach, 231, 232; of ruminant, 260
- Stomata, 53
- Stone fruits, 175, 179
- Storm-cock, 302, 307
- Strawberry, 105; fruit of, 176, 180, 181
- Style of flower, 91
- Sugar, 230
- Sugar, formation of,
- in germinating pea, 33;
- in grasses, 126
- Swallow, 310, 313; family, 310, 312
- Sweet chestnut, 148
- Sweet-scented vernal grass, 133, 137
- Swift, 321, 322
- Swimmerets of crayfish and lobster, 373, 375
- Sycamore, 157, 158;
- buds of, 56, 60;
- fruit of, 3, 8, 171, 173;
- leaves of, 38, 42, 58, 157, 158;
- seeds of, 3, 8, 11, 13
- Tadpoles, 341, 344
- Tail,
- of rabbit, 215;
- of tadpole, 346, 347
- Teeth,
- of cat, 246, 255;
- of dog, 248, 255;
- of frog, 333, 336;
- of rabbit, 219;
- of sheep, 257, 259
- Tendrils, 43, 76, 79
- Tentacles of snail, 379, 382
- Thistle, 112, 114
- Thorax,
- of cockroach, 350, 353;
- of rabbit, 218
- Thorns, 75, 78
- Throstle, 301, 303
- Thrush, 301, 303;
- family, 301, 303;
- missel, 302, 306
- Thyme, 118
- Tiger-moth, 364, 369
- Timothy grass, 132, 135, 136
- Toadstools, 204, 206
- Tongue,
- of cat, 246, 252;
- of frog, 333, 336
- Tuber, 81, 84, 191, 194
- Tumbler pigeon, 279
- Turnip, 94, 95
- Twining stems, 76, 79, 80
- Valves,
- of heart, 236, 238, 239;
- of veins, 235, 239
- Vapourer-moth, 364, 369
- Vegetable marrow,
- seed of, 3, 7, 11, 14;
- fruit of, 176, 179
- Vegetable mould, formation of, by earthworms, 384, 386
- Veins,
- of leaves, 37, 39;
- valves of, 235, 239
- Ventral, 217
- Ventricles of heart, 235, 237
- Vertebrae,
- of pigeon, 269;
- of rabbit, 223, 227
- Vertebral column, 217, 222, 227
- Vertebrates, 220, 355
- Vetch, 100
- Violet, fruit of, 166, 169
- Wallflower, 88, 89;
- family, 93, 94;
- fruit of, 165, 167
- Warren of rabbit, 211, 214
- Water, amount of,
- in plants, 26;
- culture, 27;
- dropwort, 108;
- hemlock, 108
- Wheat seed, 18, 19; germination of, 21
- Whiskers,
- of bat, 256;
- of cat, 246, 250;
- of rabbit, 217
- White, mould, 207, 208; of egg, 283, 285
- Wild oat, 133, 136
- Willow, 150; fruit of, 171, 173
- Windhover, 329, 331
- Wind-sown seed, 172
- Wing-covers,
- of cockroach, 350, 354;
- of beetles, 358, 359, 362
- Winged seeds, 174
- Wings,
- of bat, 257;
- of cockroach, 350, 353;
- of pea flower, 100, 102;
- of pigeon, 266, 270, 273
- Wood 70, 71, 72;
- avens, fruit of, 174, 177;
- louse, 377
- Wool, 257, 258
- “Woolly bear,” 364, 369
- Worm castings, 384, 386
- Worms, 383
- Yellowoat Grass, 137
- Yolk of hen’s egg, 283, 285
- Yorkshire fog, 125, 132, 136