Cartilage, 36 Cavity of the body, 43 Cell, 4 a chemical laboratory, 6 division of, 32, 105 exhaustion of, 102 movements of, 5, 31 nerve, 60, 87 spinal ganglion, 63 Centres, nervous, 63, 78, 88, 91 Centrosome, 31 Cerebellum, 84 Cerebral cortex, 86 hemispheres, 85 Chemical compounds, 2 needs of body, 11 Chemistry of the body, 8 Chords, vocal, 93 Cilia, 33 Circulation, 27, 97 course of, 28, 55 mechanism of, 48 Circulating fluids, 26 Clotting of blood, 104 Cochlea, 76 Cold, 83 Collagen, 24, 35, 96 Compounds, chemical, 2 Conductivity of protoplasm, 59 Connective tissue, 24, 35, 96 Conservation of energy, 92 Contraction of heart, 49 of muscle, 34 Cooking, 96 Cord, spinal, 63, 78 Corpuscles, red blood, 29 white blood (leucocytes), 45 Cortex, 86 Cough, 65, 67 D. Death, 103 Diaphragm, 52, 97 Diet, 11, 95 Digestion, 11 by body, 22 by cell, 16 Doctor, ix Drum of ear, 75 E. Ear, 74 Education, 99 Efferent system of nerves, 92 Egg, white of, 13 Electric manifestations in tissues, 40 organs of fish, 42 stimulation of tissues, 37, 88 Embryo, development of, 17 Endolymph, 74 Enzyme, 15 Epilepsy, 89 Equilibrium, 66, 84 Exercise, 97 Eye, 73 education of, 100 protection of, 65 F. Fainting, 66 Fat, 14, 24, 27 Fatigue, 40, 102 Ferments, 15 Fibres, connective tissue, 35 muscle, 34 nerve, 42, 60 Fibrils, muscle, 35 Fish, electric, 42 Food, 10, 95 amount of, 15, 96 vacuole, 16 Forehead, 91 Frog experiments on muscle, 37 reflexes, 68 G. Ganglion, spinal, 62 Gastric juice, 23 Gelatin, 24, 35, 96 Gland cells, 21 Glands, origin of, 20 salivary, 22 sweat, 71 tear, 65 H. Hæmoglobin, 29 Hair, 70 Harvey, 108 Head, 79 Hearing, 74 Heart, 48, 66 Heat, production of, 13 regulation of, 83 Histological methods, 110 Huxley, 7 Hydrochloric acid, 23 I. Internal secretion, 29 Intestine, movements of, 47 Involuntary movements, 65 muscle, 34 Iron, 95 K. Kidneys, 29, 95 L. Labyrinths of ear, 74 Leucocytes, 42 Limbs, 56 Liver, 24 circulation through, 27, 54 Living matter, 1 Localization of function in the brain, 86, 88 Lungs, 52, 93 absorption by, 25 Lymph, 26 circulation of, 27, 48 M. Marshall’s fibrils, 35 Meat in diet, 15, 95 Medicine, ix Medulla (hind-brain), 82 Memory, 91 Micro-organisms, 5, 8, 16, 31, 102, 105 Microscope (histological methods), 110 Milk, 95 Mixture, 3 Molecule, 2 Mouth, 79 Muscle, 34 how studied, 37 of alimentary canal, 46, 95 Muscles, 97 of limbs, 56 stiffening at death of, 104 N. Nerve cells, 60 centres, 63, 78 fibres, 42, 60 Nervous system, 58 Nitrogen, 12 Nucleus, 4, 21, 32, 106