Note 711 — BOOK III.—OF THE EPIDEMICS.

Our author alludes to the affection called coma vigil by the later authorities. In this affection, as Galen remarks, the patient lies with his eyes shut, but can get no sound sleep. This, of course, is so much more the case provided pain be present, as it necessarily will prevent the occurrence of sleep. See Galen’s tract On Coma.