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