A collection of essays and clinical reports that theorizes the psychological origins and treatment of hysteria and related neurotic disorders. It presents detailed case material and argues that symptoms act as symbolic expressions of repressed wishes residing in the unconscious, outlining methods for making these accessible through free association, dream analysis, and interpretive work while noting the abandonment of earlier hypnotic techniques. The papers explore defensive neurotic formations, anxiety states, phobias, obsessions, and certain hallucinatory phenomena, and discuss the recurrent role of sexual impulses and fantasy in etiology, connecting theoretical models with practical psychoanalytic therapeutic procedures.