--_Lowell._ the three Furies, daughters of Night, who represent the remorse which torments and pursues the wicked; the three Sirens, who lived on an enchanted Isle in the Mediterranean Sea and lured mariners on the rocks with their bewitching songs; the three Graces, who presided over feast and dance; the nine Muses, daughters of Jupiter, who dwelt on Mount Helicon and presided over arts and sciences-- "Fortunate is he whomsoever the Muses love, and sweet blows his voice from his lips." Mount Helicon was also the home of the great Flying Horse which is sought by poets and is now represented in the sky by a large square of stars called the Square of Pegasus. In one of the adventures of the hero Perseus he snatched the solitary eye away from the three Grey Sisters and thus forced them to tell where he might find the three terrible Gorgons. Transcribed to stars, he still holds the snaky ringlets of the Gorgon Medusa which he had been forced to obtain at the command of the king of the Island of Seriphus. This head now has the added attraction of a mysterious star called Algol, which every few days indulges in a slow, deliberate "wink," a performance most unusual among the wide-eyed stars. The names of the gods and goddesses were bestowed upon the five planets then known--Saturn, Jupiter, Mars, Venus and Mercury. This plan was also followed when the two outer planets, Uranus and Neptune, were discovered in modern days. These names are Roman names but the mythology of the Greeks and Romans is so intermingled that the names of their characters are, as a general rule, used interchangeably, although the Roman names seem more popular and are used by astronomers. Many writers of mythology use the Grecian names entirely because much of the material of the Roman legends was brought into their literature by Greek poetry. _Roman_ _Greek_ Jupiter Zeus Juno Hera Neptune Poseidon Ceres Demeter Diana Artemis Vulcan Hephaestus Minerva Pallas Athene Mars Ares Venus Aphrodite Mercury Hermes Apollo Apollo Vesta Hestia