Mir bane. Dark, black blood, coagulates with difficulty; venous hyperaemia of the brain and general venous engorgement. Burning taste in mouth. Blue lips, tongue, skin, nails and conjunctive. Cold skin, pulse small, weak, breathing slow and irregular, unconsciousness, symptoms of apoplectic coma. ROLLING OF EYEBALLS IN THEIR VERTICAL AXIS; PUPILS DILATED. Nystagmus. Respiration very slow, difficult, sighing.