_Disorders of Mind_ I. Mental Incapacity (Psychasthenia) 597 II. Hallucinations 603 III. Dreads 612 IV. Heredity 627 V. Premonitions 634 VI. Periodical Depression 641 VII. Insomnia 651 VIII. Some Troubles of Sleep 663 IX. Dreams 669 X. Disorders of Memory 678 XI. Psychic Contagion 688