Thallium Metallicum

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] .

Ptyalism, [2] .

Loss of appetite, [2] . Nausea, [2] .

Vomiting, [2] .

Pains in the intestinal canal, [2] .

Diarrhoea, and even bloody stools, [2] .

Respiratory Organs.

Slow and difficult respiration, [2] .

Heart And Pulse.

Diminished frequency of pulse, [2] .

[10.]

Emaciation, [2] . Hyperaemia, 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] .