INDEX.

Acids, 71 hydrobromic, 88 hydrochloric, 72 hydrocyanic, 100 hydrocyanic, in gastric disease, 103 lactic, 72 nitric, 72 nitro-muriatic, in hepatic insomnia, 103 phosphoric, 72

Aconite, 63, 93, 100

Africa, maladie du sommeil of, 30 winds from the deserts of, effect of, 46

Africans, habits of, regarding sleep, 40 victims of the maladie du sommeil, 30

Alcohol, 76 effect of, upon the brain, 54 in angina pectoris, 99 in asthma, 101 in chorea, 110 in dyspepsia, 103 in fever, 105 in hepatic diseases, 102

Allen, Prof. J. Adams, case of somnambulism observed by, 185

Allix, observations of, regarding bodily temperature in sleep, 7

Allix and Hohl, observations of, regarding the pulse in sleep, 6

Aloetic purgatives in insanity, 94

Ammonia, in fever, 105

Amyl nitrite, 84 in angina pectoris, 99 in asthma, 101

Anæmia of the brain, 53

Anæsthetics, 75

Angelic visitors, delusions regarding, 129

Angina pectoris, 99

Anti-spasmodic effects of belladonna, 69

Apparent death, 34 crucial test of, 35

Arabia, effects of wind from the deserts of, 46

Arago, observations of, regarding atmospheric electricity, 46

Arsenic, in asthma, 101

Atropia, 69

Atropine, use of, with opiates, 87

Artificial sleep, effect of, upon the process of oxidation, 9 mode of production of, 22

Artificial somnambulism, 214 cataleptic form of, 219 lethargic form of, 220 recollection of the events of, 227 somnambulic form of, 222 three varieties of, 219

Assafœtida, use of, in insomnia, 110

Assimilation, rate of, in sleep, 5

Association of ideas, cessation of, in sleep, 3 effect of, 123

Asphyxia, 100

Asthma, insomnia caused by, 101 relieved by atropine, 69 relieved by chloroform, 82 relieved by ether, 82 relieved by iodide of potassium, 110 relieved by lobelia, 71 relieved by stramonium, 71 relieved by tobacco, 71

Atmospheric electricity, effects of, 46

Australia, effect of winds from the deserts of, 46

Azam, a case of somnambulic life observed by, 208

Bachelder, Dr. G. H., observations of, on the maladie du sommeil, 32

Baillarger, hallucination excited by dreaming, 126

Ball and Chambard, classification of the varieties of somnambulism, 169

Baths, use of, as nervous stimulants, 60 cold, 73, 95 in fever, 104 in insomnia, 112 in scarlet fever, 76 shower, 95 warm, 94

Bartholow, on the use of phosphorus, 71

Beard and Rockwell, on the use of electricity, 62

Beer, effect of, 76

Belladonna, 69, 100 use of, in asthma, 101 use of, in fever, 104 use of, in hepatic diseases, 102

Bismuth, use of, in gastric diseases, 103

Bladder, insomnia in irritability of, 90

Blisters, use of, in rheumatism, 106

Blood, control of its circulation by the nervous system, 26

Bombardment, sleep during, 1

Boussingault, experiments of, on the process of oxidation in the tissues, 9 observations of, on respiration in sleep, 6 observations of, regarding the bodily temperature in sleep, 7

Brain, consequences of inordinate excitability of, 159, 161 exalted receptivity of, during the waking state, 150 exalted susceptibility of, in sleep and dreaming, 144, 150 the, its division into separate mechanisms, 13 the, a reservoir of sensory impressions, 124

Brandy, use of, in wakefulness, 77

Bromide of potassium, use of, in insanity, 95 of sodium, use of, in chronic alcoholism, 97 of sodium, use of, in delirium tremens, 98

Bromides, the, 88 use of, in convulsions, 110 use of, in delirium, 77 use of, in fever, 104 use of, in night terrors, 112 use of, in pregnancy, and after parturition, 109 use of, with chloral and morphia, 86

Brooke, Lieut. J. M., observations of, regarding hypnotic clairvoyance, 224

Bronchitis, insomnia caused by, 100 insomnia of, relieved with paraldehyde, 80

Brunton, Dr. T. Lauder, his theory of counter-irritation, 62

Butylchloral hydrate, 83

Buschick, experience of, in waking before earthquakes, 144

Caffeine, effect of, upon the brain, 54

Camphor, 67 use of, in asphyxia, 100 use of, in fevers, 105 use of, in the insomnia of cachexia, 108 use of, after parturition, 109

Cannabin, 69

Cannabin tannate, 68

Cannabis indica, 68 anti-aphrodisiac effect of, 69 use of, in delirium tremens, 98 use of, in fever, 104 use of, in insanity, 96, 97 use of, in pregnancy, 109 use of, as a substitute for hyoscyamus, 113

Cantharides, 63

Capsicum, 63

Capsicum, use of, in the insomnia of delirium tremens, 77, 98

Carbolic acid, vapor of, for relief of cough, 100

Carbon, oxidation of, during sleep, 7

Carbonic acid gas, discharge of, during sleep, 9

Cardiac debility, use of butylchloral in, 83

Cardiac disease, insomnia of, treated with paraldehyde, 80 treated with digitalis, 66

Cardiac dyspnœa, relieved with opiates, 87, 98

Cardiac neuralgia, 99

Carotid arteries, compression of, for relief of insomnia, 25, 27, 57

Cataleptic form of artificial somnambulism, 219

Catarrh, nasal, effect of sleep upon, 8

Caton, Judge John D., on the difficulty of sleep during the continuous daylight of summer in Norway, 40

Cerebral activity, effect of, upon bodily temperature, 8

Cerebral anæmia and its cause during sleep, 25, 28 use of phosphorus for, 71

Cerebral circulation, dependence of consciousness upon, 25, 27 during sleep, observations upon, by Professor Mosso, 26

Cerebral exhaustion, benefited by the use of phosphorus, 71 in fever, 105

Cerebral hyperæmia, effects of, 145 insomnia of, treatment with paraldehyde, 80

Cerebral irritation in cachectic states, 108

Cerebro-spinal meningitis, use of opiates in, 93

Cerebro-spinal weakness, 110

Change of life, use of valerian during, 68

Chicago, embarkation from, 45 the great fire in, 40

Child-birth, insomnia after, 81

Chloral, 82

Chloral hydrate, influence of, upon oxidation in the tissues, 9 association of, with morphia and bromides, 86 use of, in angina pectoris, 99 use of, in asthma, 101 use of, in cachexias with insomnia, 109 use of, in chorea, 110 use of, in chronic alcoholism, 97 use of, in delirium tremens, 98 use of, in fevers, 104 use of, in hepatic diseases, 102 use of, in insanity, 95 use of, in meningitis, 94 use of, in night terrors, 112 use of, in respiratory diseases, 100

Chlorodyne, 82 use of, in syphilitic neuralgia, 107

Chloroform, 81 use of, in asthma, 101 use of, in convulsions, 110 spirit of, in the treatment of fevers, 105

Chossat, observations of, on the temperature of pigeons, 7

Circulation of blood, its regulation by the nervous system, 26 disorders of, 52 modified by counter-irritation, 63 state of, during sleep, 6

Clairvoyance, hypothetical explanation of, 148 in dreams, 146, 148, 149 in dreaming, and in natural somnambulism, 226 in the hypnotic state, 224

Clark, observations of, on the sleeping dropsy, 30

Codeia, 85

Codeine, 88

Coffee, effects of, upon the brain, 54

Cold, a nervous sedative, 73

Cold baths, 73

Cold, excessive, a cause of stupor, 47

Colic, uterine, relief of, 81

Color-blindness, effect of hypnotism upon, 223

Coma, 32

Coniine, 91

Conium, 90, 95

Consciousness, duration of the sensations required for its excitement, 23 state of, during sleep, 14

Convulsions, excited by compression of the carotid arteries, 27 treatment of, 110

Cough, spasmodic, treatment with spirit of chloroform, 82

Counter irritants, 62

Croton oil, 63

Cups, counter irritation with, 63, 93

Curci, observations of, regarding belladonna, 69 regarding morphia, 85

Cutaneous disorders, causes of insomnia, 55

DaCosta, on lithæmia, 106

Darkness, favorable to sleep, 18

Day and night, alternation of, a cause of sleep, 17

Death, apparent, 34 test of, 35

Degeneration of the brain, 55

Demme, observations of, on bodily temperature in sleep, 7

Delirium, 54 excited by hyoscyamus, 70 excited by stramonium, 71 of exhaustion, 77 treatment of, with musk, 67

Delirium tremens, treatment of, with alcohol, 77 with bromides, 89 with capsicum, 77 with chloral, 82 with digitalis, 67

Delusions, caused by dreams, 128

Depressing emotions, a cause of sleep, 19

Diagram, illustrating the stages of sleep, 4 the varieties of somnambulism, 172

Digitalis, indirectly hypnotic effect of, 66 treatment of delirium tremens with, 98

Diminution of energy, represented by sleepiness, 2

Disease and dissolution, revival of memory in, 165

Dover’s powder, 67, 100, 104, 110, 112

Double consciousness, 204, 206

Dreams, 116 analysis of, 133 at the moment of waking, 14 brevity of, 15 causes of, 118 cause of special vividness of, 134 clairvoyant, 146, 148, 149 coherence of, 131 definition of, 120 dependence of, upon partial sleep of the brain, 11 duration of, 135 excited by gustatory sensation, 43, 125, 130 by heat, 43 by painful diseases, 141 by sensory impressions during sleep, 29 by sounds, 41 incoherence of, 133 intellectual combinations in, 131 mode of their production, 124 primitive belief in the divine origin of, 160 prophetic, 142, 143 recollection of, 140 relation of, to depth of sleep, 4 relation of, to waking hallucinations, 126 resemblance of, to the mental processes of insanity, 133 revival of memory in, 162 somnambulic, 178 state of volition during, 141 suggested by external impulses, 125, 130 theory of, 116 waking, 123

Dropsy, treatment of, with digitalis, 66

Dumontpallier, case of self-hypnotism related by, 219

Duration of sleep, 110

Dyspnœa, cardiac, 98 treatment of, with digitalis, 66

Dyspeptic insomnia, 104

East Indies, climate of, a cause of insomnia, 44

Eggs, as an article of food, 66

Electrical test of apparent death, 35

Electricity, atmospheric, 46 use of, 62, 63

Emphysema, insomnia of, relieved with paraldehyde, 80

Energy, diminution of, represented by sleepiness, 2 renewal of, by sleep, 5

Epilepsy, double consciousness in, 205

Ether, hypnotic effect of, 81 inhalation of, 98 use of, in asthma, 101 use of, in convulsions, 110 use of, in irritative cough, 100

Ether, compound spirit of, 81 use of, in delirium tremens, 98 use of, in hepatic diseases, 102

Excrementitious substances, causes of insomnia, 55

Exhaustion, a cause of sleep, 19 relief of with alcoholic stimulants, 76 states of, 64 use of musk in, 68

Exner, experiments of, to test the possibility of dreamless sleep, 14

Eye, state of its secretions during sleep, 8

Facial neuralgia, treatment of, with butylchloral, 83

Fainting, a counterfeit of sleep, 25

Fatigue, a cause of sleep, 19

Fatigue theory of sleep, 20

Fevers, eruptive, treatment of with musk, 68 infective, 57 typhoid, 57 treatment of with cold baths, 73

Flaxseed tea, 100

Florida, climate of, in insomnia, 114

Fonssagrives, observations of, regarding atmospheric electricity and insomnia, 46

Food, lack of, a cause of insomnia, 63

Foot-baths, hot, in the treatment of insomnia, 93, 94

Force, fluctuations of, 15 kinetic, 15 potential, 15

Frank, J. P., case of somnambulism related by, 195

Functional nervous disorders, treatment of with hypnotism, 229

Gairdner, W. T., case of somnambulic lethargy reported by, 174

Gastro-intestinal glands, state of their secretions during sleep, 8

Gelsemium, 90 treatment of fever with, 104 use of, in the wakefulness of children, 112

Generation of ideas, relation of, to molecular movements in the brain, 24

Grasset, case of somnambulism related by, 177

Guérin, observations of, on the maladie du sommeil, 30

Guiana, delusions among the Indians of, founded upon dreams, 128 travels in, 42

Guy, observations of, regarding the pulse in sleep, 7

Hallucination, case of, related by Dr. E. H. Clarke, 156 experienced by Sir Edmund Hornby, 150 production of, by drugs, 120 sometimes excited by dreams, 126, 150

Hamilton, Sir William, experiments of, on the possibility of dreamless sleep, 14

Hasheesh, visions excited by, 120

Hayes, Dr. P. S., case of lucid lethargy reported by, 35

Headache, 54

Hearing, persistence of during sleep, 41 sense of, during sleep, 11

Heart, pulsation of, in sleep, 6

Heat, a cause of insomnia, 44 a nervous stimulant, 59 effects of excessive, 47 liberation of, during sleep, 9

Heidenhain, observations of, on hypnotism, 214

Helmholtz, observations of, on liberation of heat during sleep, 9

Hemicrania, treatment of, with butylchloral, 83

Henneberg, experiments of, on oxidation in the tissues, 9

Hibernation, phenomena of, 48

Hoffmann’s anodyne, 81

Hohl and Allix, observations of, on the pulse in sleep, 6

Holland, Sir Henry, observations of, regarding the loss of memory during exhaustion, 209

Hops, 90 treatment of chronic alcoholism with, 97

Hornby, Sir Edmund, experience of hallucination, 150

Horsford’s Acid Phosphate, 72

Horvath, observations of, on the temperature of hibernating marmots, 8

Hunger, 2

Hydrobromic acid, 88

Hydrochloric acid, useful in atonic dyspepsia, 72

Hydrocyanic acid, 100 in gastric diseases, 103

Hyosciamia, 70, 96

Hyosciamine, 70

Hyoscyamus, 70 use of, after parturition, 109 use of, in asthma, 101 use of, in fever, 104 use of, in hepatic diseases, 102 use of, in insanity, 96 use of, in insomnia of children, 112 use of, in renal diseases, 102

Hyperæmia of the brain, 52, 54, 110

Hypnagogic hallucinations, 3, 4

Hypnagogic state, 2

Hypnotic sleep, duration of, 217

Hypnotic sleep, clairvoyance in, 224 condition of the special senses in, 223 conditions favorable to, 214 exaltation of the imitative faculty during, 227 methods of inducing, 215 perception during, 149

Hypnotism, 214 likeness of, to somnambulism, 203 observations of Braid, 214, 229 observations of Charcot, 214, 219, 221 observations of Cohn, 223 observations of De Watteville, 229 observations of Dumontpallier, 219, 221 observations of Fischer, 150, 227 observations of Harting, 215 observations of Heidenhain, 214, 215, 216, 222 observations of Milne-Edwards, 215 observations of Rieger, 229 observations of Wiehe, 229 receptivity of the brain to suggestions during, 226 suggestion of ideas during, 226 therapeutical use of, 228

Hysteria, a cause of double consciousness, 205

Hysterical excitement, treatment of, 68

Ice-cap, in the treatment of acute affections of the brain, 93

Iceland moss, for the relief of cough, 100

Ideas, their dependence upon molecular movements in the brain, 24

Illusions, excited by disease and by drugs, 120, 122

Imagination, persistence of, in sleep, 3

Imitative faculties, exaltation of, in hypnotic states, 227

Immermann, on cold baths, 73

Impulses to violence during somnambulism, 193

Im Thurn, Everard F., on dreams among the Indians of Guiana, 128

Indians, of Guiana, magic practices among, 42

Inflammations affecting the brain, 54

Inhalations, medicated, 100

Injuries of the brain, 55

Insanity, 54, 57, 70, 133

Insomnia, 38

Insomnia, causes of, 39 caused by aortic obstruction, 84 caused by asthma, 101 caused by cardiac disorders, 51 caused by cold, 47 caused by contagia of animal origin, 55 caused by cutaneous disorders, 49, 55 caused by dyspepsia, 51 caused by electrical disturbances, 46 caused by excrementitious substances, 55 caused by fatigue, 78 caused by heat, 44, 46 caused by heat and humidity, 44 caused by icterus, 49 caused by inflammations, 50 caused by insects, 49 caused by itching in myelitis, 49 caused by itch-mite, 49 caused by light, 39 caused by malaria, 72 caused by meningitis, 50 caused by miasms, 55 caused by morbid states of the central nervous organs, 51 caused by neuralgia, 50 caused by neuritis, 50 caused by neuromata, 50 caused by oxaluria, 72 caused by pain, 49 caused by parasites, 49 caused by periostitis, 50 caused by phosphatic diathesis, 72 caused by pneumogastric disorder, 51 caused by poisons, 55 caused by products of putrefaction, 55 caused by respiratory disorders, 51 caused by rheumatic diathesis, 72 caused by sounds, 41 caused by smells, 42 caused by stramonium, 71 caused by sympathetic nerve disorder, 50

Insomnia, occurrence of, after childbirth, 81 occurrence of, after parturition, 109 occurrence of, during acute affections of the brain, 92 occurrence of, during bronchitis, 80 occurrence of, during cardiac diseases, 66, 80, 87 occurrence of, during change of life in women, 84 occurrence of, during childhood, 110 occurrence of, during chorea, 110 occurrence of, during chronic alcoholism, 97 occurrence of, during chronic phthisis, 84 occurrence of, during delirium tremens, 87, 90, 97 occurrence of, during diseases of the heart and blood-vessels, 98 occurrence of, during diseases of the liver, 102 occurrence of, during diseases of the respiratory organs, 99 occurrence of, during disorders of nutrition, 107 occurrence of, during dysmenorrhœa, 84 occurrence of, during emphysema, 80 occurrence of, during febrile conditions and fevers, 87, 104 occurrence of, during gastric and intestinal disorders, 87, 103 occurrence of, during gout and rheumatism, 103, 107 occurrence of, during headache, 84 occurrence of, during hysteria, 81, 89 occurrence of, during insanity, 94 occurrence of, during irritability of the bladder, 90 occurrence of, during irritability of the sexual organs, 90 occurrence of, during irritative dyspepsia, 90 occurrence of, during jaundice, 80 occurrence of, during lithæmia, 106, 107 occurrence of, during mania, 87, 89, 90 occurrence of, during melancholia, 96 occurrence of, during mental exhaustion, 89 occurrence of, during nervous disorders, 80 occurrence of, during neuralgia, 84 occurrence of, during old age, 78, 113 occurrence of, during opium habit, 84 occurrence of, during paretic dementia, 96 occurrence of, during phthisis, 80, 87 occurrence of, during pregnancy, 89, 109 occurrence of, during the puerperal state, 89 occurrence of, during renal diseases, 101 occurrence of, during rheumatism and gout, 105, 107 occurrence of, during sexual excitement, 89 occurrence of, during spasmodic diseases, 109 occurrence of, during states of exhaustion, 67 occurrence of, during syphilis, 106, 107

Insomnia, relation of, to states of the cerebral circulation, 57 relief of, by compression of the carotid arteries, 25

Iodide of potassium, treatment of asthma with, 110

Ipecac, treatment of asthma with, 101

Irritability of the brain, 53, 54

Itching of eczema, relieved with cannabis indica, 69

Jacobi, A., on wakefulness of children, 111

Japanese, use of massage among, 61

Jaundice, insomnia of, treatment with paraldehyde, 80

Jessen, case of hallucination caused by dreaming, 127

Joseph, St., dreams of, 142, 160

Judgment, suspension of, during sleep, 3

Kohlschütter, experiments of, to measure the depth of sleep, 16

Koumiss, 64

Lactic acid, hypnotic effects of, 72

Lactate of sodium, hypnotic effects of, 20, 72

Lactucarium, 88

Latent contracture, 221

Leeches, use of, 63, 93, 94

Lethargic form of artificial somnambulism, 220

Lethargy, 33 produced by excessive cold, 48

Lewin, observations of, on respiration during sleep, 6 experiments of, on oxidation in the tissues, 9

Liebermeister, experiments of, on oxidation in the tissues, 9

Life, normal, 4 possibility of intermissions in its active manifestation, 15

Light, interference of, with sleep, 40, 41

Liquors, effects of, 76

Lithæmia, a cause of insomnia, 106

Lithium bromide, 88

Lobelia, anti-spasmodic effects of, 71, 101

Lomi-lomi, 61

Lucid lethargy, 35 contrasted with somnambulic lethargy, 176

Lupulin, 90

Macario, case of somnambulism, reported by, 192

Mackinac, voyage to, 45

Macnish, case of somnambulic life, reported by, 206

Maladie du sommeil, 30

Malaria, treatment of insomnia, caused by, 72

Mania, use of chloral in, 82

Marmot, hibernation of, 48 temperature of, during hibernation, 8

Massage, 60, 109

Matter and mind, communication between, 22

Maury, A., classification of the varieties of somnambulism, 168 experience of, with table-rapping, 228 theory of, regarding forgetfulness of the events of somnambulism, 211

Measles, use of baths in, 74

Meat juice, 66

Memory, effect of physical exhaustion, 209 exaltation of, in somnambulism, 187 persistence of, in sleep, 3 relation of, to phenomena of somnambulism, 192 revival of, during disease and dissolution, 165 revival of, during dreaming, 162

Meningitis, 54, 57

Mental activity during sleep, 14

Mesnet, case of somnambulism related by, 196

Metaphysical healing, 229

Michigan, Lake, voyage upon, 45 Northern, summer climate of, favorable to sleep, 45

Milk, peptonized, 64

Mind and matter, communication between, 22 alternate states of action and repose, 15 sleep of, 15 state of, during sleep, 14

Mind-reading, 218, 227

Minnesota, summer climate of, favorable to sleep, 45

Mitchell, S. Weir, observations of, regarding effect of variable barometric pressure, 47

Molecular movement, its relation to the generation of ideas, 24

Moral responsibility in somnambulism, 203

Morphia, 97, 98, 100, 101

Morphine, influence of, on oxidation in the tissues, 10

Mosso, Professor, on the circulation of blood during sleep, 26 on respiration during sleep, 5

Mouth, condition of, during sleep, 8

Muscles, effect of sleep upon, 12 fibrillary twitching of, during sleep, 3

Muscle-reading, 218

Musk, 67, 100, 105

Mustard, 63

Nasal catarrh, state of secretion during sleep, 8

Narcotic stupor, 29

Nerves, of common sensation, affections of, 39, 49 pneumogastric, 51 sympathetic, affections of, causes of insomnia, 50

Nervous disorders, insomnia of, relieved with paraldehyde, 80 hypnotic treatment of, 229

Nervous irritation, effect of, on tissue change, 10 sedatives, 58, 59 stimulants, 58, 59 system, its control over the circulatory apparatus, 26

Neuralgia, cardiac, 99 treatment of, with alcohol, 77 treatment of, with belladonna, 69 treatment of, with preparations of valerian, 68

Neurasthenic patients, 66

New Providence, climate of, beneficial in insomnia, 114

Night and day, alternation of, a cause of sleep, 17

Night terrors, 179 treatment of, 89, 112

Nitric acid, 72

Noctambulism, 169

Noise, sleep prevented by, 41

North China Herald, criticism of Sir E. Hornby’s narrative, 155

Norway, difficulty of sleeping during the summer, 40

Nutrition, effect of sleep upon, 5, 9 disorders of, 52

Obersteiner, his theory of sleep, 20

Odors, effect of, upon sleep, 11

Old age, decline of life in, 113

Omphaloscopy, 217

Opium and opiates, 84, 98

Opiates, use of, in treatment of cachexias, 108 use of, in treatment of fever, 104, 105 use of, in treatment of gastric disease, 103 use of, in treatment of insanity, 96 use of, in treatment of renal diseases, 102 use of, in treatment of rheumatism, 105

Oxaluria, insomnia caused by, 72

Oxygen, absorption of, during sleep, 9

Ozone, use of, in the treatment of asthma, 101

Pacific Islanders, habits of, regarding sleep in the daytime, 40 use of massage among, 61

Pain, a cause of sleep, 19

Paraldehyde, 79, 95, 97, 108

Paregoric, 100

Perception, effect of, upon nervous tissue, 10 duration of, necessary to arouse consciousness, 23 range of, circumscribed by sleep, 12 transfer of, in telepathy and hypnotism, 217

Percussion, 61

Perspiration, secretion of, during sleep, 9

Pettenkofer, experiments of, on oxidation in the tissues, 9 experiments of, on respiration in sleep, 6

Pettenkofer and Voit, on tissue changes, 10

Pflüger, hypothesis of, regarding the cause of sleep, 21

Phosphatic diathesis, a cause of insomnia, 72

Phosphoric acid, 72

Phosphorus, 71

Phthisis, cough of, relieved with lactucarium, 88 insomnia of, relieved with paraldehyde, 80 treatment of, with opiates, 87

Physiological activity, reduction of, during sleep, 5

Physiological cause of somnambulism, 180

Planchette-writing, 228

Pleuritic pain, 99

Pneumogastric nerves, insomnia caused by affections of, 51

Pneumonia, 68, 100

Porter, effects of, 76

Potassium bromide, 88

Preyer, his theory of sleep, 20

Psychical Research, Society for, investigations by, 149, 217

Pulse, state of, during sleep, 6

Punkah, use of, to promote sleep, 44

Quetelet, observations of, on respiration during sleep, 5

Quinine and opium, use of, in fever, 104

Reasoning powers, arrest of, during sleep, 3

Recollection of the events of artificial somnambulism, 227 of the events of natural somnambulism, 188

Reflex movements during sleep, 12

Refrigeration, threefold effect of, 49

Relation between molecular movement and the generation of ideas, 24

Respiration during sleep, 5

Revelation through dreams, 160

Revery, nature of, 120

Rheumatic diathesis, a cause of insomnia, 72

Rosenthal, observations of, regarding lethargy, 33, 34 observations regarding apparent death, 35

Rush, Dr., observations of, on the revival of memory in dissolution, 165

Sailors, sleeping during a bombardment, 1

Sailor-boy, sleeping on a mast, 1

Salicylic acid, treatment of rheumatism with, 106

Saliva, secretion of, during sleep, 8

Samuel the prophet, dream of, 129

Sandwich Islands, climate of, for relief of insomnia, 114

Scarlet fever, treatment of, with baths, 74, 75

Scharling, observations of, regarding bodily temperature during sleep, 7 experiments of, on oxidation in the tissues, 9

Screaming fits of children, 112

Secretion, state of, during sleep, 8

Sedatives, nervous, 59, 73

Self-hypnotism, 219

Sensory excitement, effect of, upon the cerebral circulation, 27, 28

Sensory organs, condition of, during somnambulism, 191

Sexual organs, irritability of, 90

Shampooing, 61

Simon, P. Max, case of somnambulism related by, 182 dream related by, 142

Sleep, affected by certain winds, 45 artificial, mode of its production, 22 caused by the alternation of day and night, 17 caused by depressing emotions, 19 caused by exhaustion, 19 caused by fatigue, 19 caused by painful impressions, 19 caused by the venereal act, 19 definition of, 1 dreamless, 14 duration of, 4, 110 effects of its invasion upon the intellectual faculties, 13 effect of, upon consciousness, 13, 14 fatigue theory of, 20 favored by darkness, 18 favored by the suppression of sensation, 18 hindered by heat, 44 hindered by light, 39 hindered by smells, 42 hindered by sounds, 41 introductory stage of, 2 invasion of, 10, 117 measure of its depth by the experiments of Kohlschütter, 16 Obersteiner’s theory of, 20 Pflüger’s hypothesis regarding the cause of, 21 preceded by sleepiness, 2 Preyer’s theory of, 20 rapid induction of, in certain cases, 24 relation between the duration of, and the average length of the night, 17 stages of, 4 the cause of, 29 unequal incidence of, upon different portions of the brain, 13

Sleep-drunkenness, 180, 181

Sleepiness, precursive of sleep, 2

Sleeping dropsy, 30

Sleeplessness, causes of, 39

Smells, abolition of sleep by, 42

Smile, during sleep, 12

Smith, E., experiments of, on oxidation in the tissues, 9

Snoring, occasional interruption of sleep by, 11

Society for Psychical Research, investigations by, 149, 217

Sodium bromide, 88

Somniation, 169

Somnambulic dreams, 171, 178, 181 recollections of, 188

Somnambulic form of artificial somnambulism, 222

Somnambulic lethargy, 171, 173 contrasted with lucid lethargy, 176

Somnambulic life, 169, 204 a case of, 206 a case of, related by Azam, 208 a case of, related by Macnish, 206

Somnambulism, 166 artificial, 214 case of, related by Prof. J. Adams Allen, 185 case of, related by J. P. Frank, 195 case of, related by Macario, 192 case of, related by Mesnet, 196 case of, related by P. Max Simon, 182 causes of, 166 condition of sensory organs during, 191 dependence of, upon partial sleep of the brain, 11 likeness of, to hypnotism, 203 moral responsibility in, 203 phenomena of, 167, 210 physiological cause of, 180 relation of memory with events of, 192 varieties of, according to A. Maury, 168 varieties of, according to Ball and Chambard, 169 varieties of, diagrammatically exhibited, 172 violent impulses during, 193

Somnolence, 30

Somnolentia, 180, 181

Sound, effect of, to hinder sleep, 42 effect of, to induce sleep, 42

Spasmodic croup, 110

Special sense organs, affections of, 39

Special senses, condition of, during invasion of sleep, 11 perversion of, during the hypnotic state, 223

Spinal cord, irritability of, 110 reflex energy of, during sleep, 3

Spinal irritation, 62

Spirit of chloroform, 81

Spiritual circle, manifestations in, 227

Stewart, Dugald, observation of, 43

Stimulants after parturition, 109 in fever, 105 nervous, 59

Stramonium, 70, 101

Strümpell, observations of, regarding sleep produced by suppression of sensation, 18

Strychnia, 105

Stupor produced by excessive heat or cold, 47

Subsultus tendinum, treatment of, with musk, 67

Suction, involuntary, during infantile sleep, 12

Suppression of sensation, a cause of sleep, 18

Swedish movement cure, 61

Sympathetic nerves, affections of, 39, 50

Table-rapping, method of communication in, 228

Tannate of cannabin, 68

Tartar emetic, use of, in asthma, 101 use of, in delirium tremens, 98 use of, in fever, 104 use of, with opium, 108

Taste, relation of, to insomnia, 43

Tea, effect of, upon the brain, 54

Telegraphy without a wire, through water, 147

Telepathy, investigation of, by the Society for Psychical Research, 149

Temperature, of the body, during sleep, 7 sense of, 43

Thapsia, 63

Theory of sleep, Obersteiner’s, 20 Pflüger’s, 21 Preyer’s, 20

Thirst, 2

Thompson, Sir William, his doctrine concerning a sixth sense, 43

Tickling, effect of during sleep, 12

Tobacco, anti-spasmodic effect of, 71, 99, 101

Transfer of perceptions, 217

Trousseau, observations of, on the pulse during sleep, 6

Tuberculosis of the cerebral membranes, 55

Tully’s Powder, 67

Tumors of the brain, 55

Turkish baths, 60

Turpentine, 63

Typhoid fever, insomnia during, 64 treatment of, with baths, 74 treatment of, with musk, 68 treatment of, with Tully’s Powder, 67

Typhus fever, treatment of, with musk, 68

Unconsciousness, produced by compression of the carotid arteries, 27 relation of, to modifications of the cerebral circulation, 25

Urea, elimination of, during sleep, 9

Urine, secretion of, during sleep, 9

Uterine colic, 81

Valerian, 68, 109

Valerianate of ammonia, 68 of zinc, 68

Venereal act, a cause of sleep, 19

Vierordt, observations of, on the duration of sleep, 110

Visions, character of, 119 of the ancient prophets, 161

Voit, observations of, on oxidation in the tissues, 9 on respiration during sleep, 6

Volition, cessation of, during sleep, 3

Wakefulness, 38 causes of, 39 dependence of, upon instability of cerebral protoplasm, 22

Warburton, Rev. Canon, clairvoyant dream of, 146

Weariness, a cause of sleep, 1

Wharton and Stillé, on sleep-drunkenness, 181

Whooping-cough, treatment of, with belladonna, 69

Wind, effect of, upon sleep, 45

Wine, effects of, 76 use of, in the insomnia of old age, 78

Ziemssen, von, on the use of baths, 73