In Northern Gaul the fish called mur?na has on the right jaw seven spots, which bear a resemblance to the constellation of the Great Dipper, and are of a gold color, shining as long as the animal is alive, but disappearing as soon as it is dead. Vedius Pollio, a Roman of equestrian rank, and one of the friends of the late Emperor Augustus, found a method of exercising his cruelty by means of this animal, for he caused such slaves as had been condemned by him, to be thrown into prese............