DISPOSITION. Phosphorus presents interest- ing alternations of the psychical condition, as the following series of symptoms show : I. Sadness, depression with forebodings of calamity ; melancholy, relieved only by vehement weeping. 2. Great anxiety, uneasiness and dis- tress, fearfulness and restlessness, paroxysms of anxiety, which feeling seems to arise from the left chest and to be attended by palpitation. 3. Great excitability, even when thinking of ill-fortune long past, a disagreeable sensation is felt in the praecordia; all the senses are too keen, especially hearing and smell ; irritability, anger upon slight provocation. 4. Spasmodic laughter and weeping contrary to one's will ; hilarity, very sensitive imag- ination. Indifference to ordinary feelings of shame or affection. Of these phenomena the proving gives no clue to the order, but we may infer from Hahnemann's observations in the preface that sad- ness (recurring regularly at twilight), anxiety and irritability are the characteristic modifications of disposition induced by Phosphorus. PHOSPHORUS. 339 Sensorium. Weakness of memory, indisposition (moderkte) to exertion ; difficulty in collecting and concentrating thoughts ; weak feeling in the head, aggravated by thinking and by loud noise, music or hard stepping; these things produce throbbing in the head, a feeling of confusion, dullness and distraction, but especially of weakness in the head. These symptoms are interesting in connection with the known waste of Phosphorus consequent on cerebral exertion, and the stimulating effects of Phosphorus in cases of exhaustion of the cerebro- spinal system (as in the administration of Phos- phoric acid after debauch, etc).