Several explanations have been given of this fable. Prometheus, whose name is derived from a Greek word, signifying foresight and providence, was conspicuous for that quality; and because he reduced mankind, before rude and savage, to a state of culture and improvement, he was feigned to have made them from clay: being a diligent observer of the motions of the heavenly bodies from Mount Caucasus, it was fabled that he was chained there: having discovered the method of striking fire from the flint, or perhaps, the nature of lightning, it was pretended that he stole fire from the gods: and, because he applied himself to study with intenseness, they imagined that a vulture preyed continually on his liver. There is another solution of this fable, analogous to the preceding. According to Pliny, Prometheus was the first who instituted sacrifices. Being expelled his dominions by Jupiter, he fled to Scythia, where he retired to Mount Caucasus, either to make astronomical calculations or to indulge his melancholy for the loss of his dominions, which occasioned the fable of the vulture or eagle feeding on his liver. As he was the first inventor of forging metals by fire, he was said to have stolen that element from heaven; and, as the first introduction of agriculture and navigation had been ascribed to him, he was celebrated as forming a living man from an inanimate substance. AMPHION, king of Thebes, son of Jupiter and Antiŏpe, was instructed in the use of the lyre by Mercury, and became so great a proficient, that he is reported to have built the walls of Thebes by the power of his harmony, which caused the listening stones to ascend voluntarily. He married Niŏbe, daughter of Tantălus, whose insult to Diāna occasioned the loss of their children by the arrows of Apollo and Diāna. The unhappy father, attempting to revenge himself by the destruction of the temple of Apollo, was punished with the loss of his sight and skill, and thrown into the infernal regions. ORPHEUS, son of Apollo by the Muse Calliŏpe, was born in Thrace, and resided near Mount Rhodŏpe, where he married Eurydice, a princess of that country. Aristæus, a neighboring prince, fell desperately in love with her, but she flying from his violence, was killed by the bite of a serpent. Her disconsolate husband was so affected at his loss, that he descended by the way of Tænărus to hell, in order to recover his beloved wife. As music and poetry were to Orpheus hereditary talents, he exerted them so powerfully in the infernal regions, that Pluto and Proserpine, touched with compassion, restored to him his consort on condition that he should not look back upon her till they came to the light of the world. His impatience, however, prevailing, he broke the condition, and lost Eurydice forever.