Mrs. Jane G., a patient of Dr. B. Fränkel, of Berlin, 35 years old, eleven years ago, after having been suffering with typhoid fever, was afflicted with an abdominal complaint which caused so much pain that the family doctor had to administer an injection of morphia daily. Ten years ago patient married, and has given birth to two children one five years, the other eight years old now. The confinements were protracted; both children died soon after their birth. During both pregnancies the use of morphia was discontinued by the doctor, the same taking place during several occasional journeys to bathing-places made by the patient because of her complaint. For five years she has injected morphia herself, the largest dose _pro die_ having been eight grains. While using the drug, a febris intermittens tertiana showed itself, two years ago, lasting, with an interruption of four weeks, until November, 1876. Regularly at 4.30 P.M. she had shiverings, followed by burning heat, and ending in perspiration. The repeated use of quinine, even a change of air and a sojourn in the country, were unable to suppress the fever. Dr. B. Fränkel, who had only for three months attended Mrs. G., and whom she had never told of her custom of using morphia regularly, made the diagnosis of morbid craving for morphia only through considering the intermittent fever. Apart from the latter, the use of the drug had brought on the following symptoms: sleeplessness, headache, principally in the region of the right occipital nerve, parched mouth, loss of appetite, nausea, sickness, constipation, feeling of oppression, mental anxiety, palpitations of the heart. Patient, after having hardly fallen asleep, wakes up with dyspnœa, which increases to actual fits of choking; swimming before the eyes and muscular quivering. Patient is admitted into the Maison de Santé, and the use of the morphia is stopped forthwith. October 16. Hardly any sleep during the night; in the morning patient is in a happy temper, makes no complaints. Temperature and pulse normal. In the course of the forenoon there was much perspiration, and patient complained of headache and nausea. Pupils unequal, _the left smaller than the right_. Pressure on the stomach, shivering, yawning; in the afternoon, there is restlessness, stomach-ache, epigastric pain, oppressiveness, much perspiration, shivering. Poultices were applied to the abdomen. Up to the evening she had altogether vomited twelve times and had one relaxed motion. _Pupils unequal, the left wider than the right._ The excitement, in consequence of the pain in the stomach, increases hourly. Patient moves about in bed and moans aloud. Frequent spasmodic yawning. At 9 P.M., a bath with cold douche of a quarter of an hour’s duration is given, after which she became quieter for a short time.