SANGER. — CHRONIC ARSENICAL POISONING. 151 



was troubled by a ringing in the ears which disturbed her sleep. On 

 removal to the country, her health improved, but on return to 

 Vienna in the following autumn, some of the symptoms returned. 

 There was now some nausea. The throat was red and irritated. The 

 girl had slept for several years in the room, and had apparently not 

 been affected by the arsenic, which was found, together with copper, 

 in quantity on the walls. Twenty grains of potassic iodide were given, 

 and after several days the urine was found to contain a trace of arsenic, 

 as well as a trace of copper. The green coloring matter was removed 

 from the walls. After continuing the doses of iodide, together with 

 warm baths and exercise, the patient in a few weeks recovered. 



5. A woman seventy-eight years old had lived for some time in a 

 room the walls of which were colored by Mitis green, which could be 

 easily rubbed off. In the spring of 1858 she was troubled by period- 

 ical recurrence of ringing in the ears and tightness in the head, ac- 

 companied by digestive disturbance and constipation, and a feeling of 

 oppression in the stomach. On going to the country she became better, 

 but on return in the autumn was necessarily confined to the house, 

 and the symptoms returned. The riuging in the ears was intensified. 

 Tbere was pain in the abdomen, which was distended and painful to 

 the touch. Pulse and respiration normal, skin dry, tongue clean. 

 Nights sleepless and anxious. April 29, 1859, arsenic and copper 

 were found in the urine in traces. Ten grains of potassic iodide were 

 prescribed daily, and for the first few days the symptoms decreased. 

 The ringing in the ears was less and the nights were better. Patient 

 then became feverish, with dry cough and metallic taste. May 15, no 

 arsenic or copper could be found in the urine. During the following 

 days the metallic taste increased, and there was excessive flow of 

 saliva. The iodide was given up and an astringent wash applied, 

 stopping the flow of saliva. May 29, there was again no arsenic in 

 the urine. During this time pleuritis had come on, and it developed 

 into pneumonia, from which the patient died on June 3. Some daws 

 before death, the ringing in the ears had stopped, but there was a 

 burning sensation in the stomach day and night, and the patient 

 vomited mucus. The intestines and brain were examined for arsenic, 

 but none could be detected with certainty. 



In these five cases, although the details of the analyses are not given 

 as carefully as could be desired, it is probable that a small amount of 

 arsenic was found in the urine, though it was impossible to estimate it 

 with the means then at hand. It is safe, however, from the descrip- 

 tion of the mirrors, to set a limit of 0.05 mgr. arsenious oxide per 



