THALLIUM.

An element.

Authorities.

1 , Lamy, Gaz. des hôp.; 1863, 104, and Journ. de Chimie, 1863, vol. 9, p. 721, effects while experimenting; 2 , Dr. Marmé, of Göttingen (Raue's Rec., 1870, p. 21), effects of repeated small doses.

EYE

• Very frequent conjunctivitis, with abundant production of mucus (perhaps, also, disturbance of vision), 2.

MOUTH

• Ptyalism, 2.

STOMACH

• Loss of appetite, 2.
• Nausea, 2.
• Vomiting, 2.

ABDOMEN

• Pains in the intestinal canal, 2.

STOOL

• Diarrhœa, and even bloody stools, 2.

RESPIRATORY ORGANS

• Slow and difficult respiration, 2.

HEART AND PULSE

• Diminished frequency of pulse, 2.

GENERALITIES. [10.]

• Emaciation, 2.
• Hyperæmia, swelling, and excessive secretion, especially on application to the conjunctiva, 2.
• Anomalies of motion, trembling, and uncoordinated chorea-like movements, which often appear even before the appetite is involved, 2.
• Pains accompanied by the greatest lassitude, especially in the lower extremities, 1.
• In a memoir relating to Thallium, the author calls the attention of the academy to the danger that may be apprehended from dealing with such a powerful poison. The sulphate is an energetic poison the two principal symptoms of which are the *pain in the stomach and bowels, consisting of terribly severe lancinations, following each other with the rapidity of electric shocks; second, the trembling and more or less complete paralysis of the lower extremities . These symptoms, associated with constipation, retraction or depression of the abdomen, complete loss of appetite, represent a marked analogy to the phenomena of lead-poisoning, 1.