BULL-HEAD. See ICHTHYOLOGY, Index.

BULL in Cana Domini, a particular bull read in the pope's presence every year, on the day of the Lord's Supper, or Maundy Thursday, and containing excommunications and anathemas against heretics, and all who disturb or oppose the jurisdiction of the holy see. After the reading of the bull, the pope throws a burning torch in the public place, to denote the thunder of this anathema.