Saint Vitus's Dance, known to medical men by the name of " Chorea,'" is a disease strongly indicative of nervous disorder; its precise nature, however, is at present obscure. Probably it may be occasioned by direct causes, that is, by causes seated in the great centers of the nervous system, or by indirect causes, which act by "reflex action."

Symptoms.

The most manifest symptom of St. Vitus's dance is continued involuntary action of the voluntary muscles, to a greater or less degree—the extent of the muscles affected, and the intensity of their affection, varying with the severity of the disease. The disease generally commences with twitching about the face or neck, or in a particular limb, gradually extending to one side of the body, or to the whole body, as the case may be. Pain is seldom complained of, but it does sometimes occur in the head.

Remedies

Agaricus muscarius, is the most potent remedy. Helleborus, if brain fected. Ignatia, for twiching of single muscles.