Κατοπτρική, a kind of divination among the ancients; so called, because con- sisting in the application of a mirror. The word is formed from κατοπτρίζειν, speculum, "mirror," and μαγ- σιν, divinatio, "divination." Pausanias says, it was in use among the Achaeans; where those who were sick, and in danger of death, let down a mirror, or looking glass fastened by a thread, into a fountain be- fore the temple of Ceres; then looking in the glass, if they saw a ghastly disfigured face, they took it as a sure sign of death: on the contrary, if the flesh ap- peared fresh and healthy, it was a token of recovery. Sometimes glasses were used without water, and the images of things future represented in them. See GASTROMANCY.