MERCURIUS SULFOCYANATUS.

Sulphocyanide of mercury, CyHg2S2 (Pharaoh's serpents).

Authorities.

1 , Dr. Peters, L'Union Méd., 1865, 110, p. 525 (S. J., 128, 294), a boy ate one "serpent;" 2 , Syri, Bull. de Thérap., 81, p. 567, 1866 (S. J., 133, p. 161), a man took a whole "serpent" in water.

MIND

• Excessive anxiety, 2.

HEAD

• Vertigo on attempting to rise, 2.

FACE

• Paleness and great weakness, with cold skin and frequent shivering, 1.

MOUTH

• Constant salivation, 2.
• Disgusting metallic taste in the mouth, 1.

THROAT

• Extreme redness of the fauces, with a white membrane on the tonsils, 2.
• Most violent burning in the fauces, 2.
• Heat and constriction in the œsophagus, with difficulty of swallowing and burning in the epigastric region, with nausea, 1.

STOMACH

• Vomiting, 2. [10.]
• Epigastric region painful to pressure, 2.

STOOL

• Bloody stools, 2.

RESPIRATORY ORGANS

• Voice rough and hoarse, 2.
• Tenacious expectoration (after four days), 2.

PULSE

• Pulse full, 54, and intermitting every three beats (second day), 2.

SUPERIOR EXTREMITIES

• Pain in the shoulder-joint, 2.

GENERAL SYMPTOMS

• General prostration for some days, 2.