Hercules left the expedition at Mysia, for Hylas, a youth beloved by him, having gone for water, was laid hold of and kept by the nymphs of the spring, who were fascinated by his beauty. Hercules went in quest of the lad, and while he was absent the “Argo” put to sea and left him. Moore, in one of his songs, makes a beautiful allusion to this incident: “When Hylas was sent with his urn to the fount, Through fields full of light and heart full of play, Light rambled the boy over meadow and mount, And neglected his task for the flowers in the way. “Thus many like me, who in youth should have tasted The fountain that runs by Philosophy’s shrine, Their time with the flowers on the margin have wasted, And left their light urns all as empty as mine.” MEDEA AND ÆSON Amid the rejoicings for the recovery of the Golden Fleece, Jason felt that one thing was wanting, the presence of Æson, his father, who was prevented by his age and infirmities from taking part in them. Jason said to Medea, “My spouse, would that your arts, whose power I have seen so mighty for my aid, could do me one further service, take some years from my life and add them to my father’s.” Medea replied, “Not at such a cost shall it be done, but if my art avails me, his life shall be lengthened without abridging yours.” The next full moon she issued forth alone, while all creatures slept; not a breath stirred the foliage, and all was still. To the stars she addressed her incantations, and to the moon; to Hecate,[17] the goddess of the underworld, and to Tellus the goddess of the earth, by whose power plants potent for enchantment are produced. She invoked the gods of the woods and caverns, of mountains and valleys, of lakes and rivers, of winds and vapors. While she spoke the stars shone brighter, and presently a chariot descended through the air, drawn by flying serpents. She ascended it, and borne aloft made her way to distant regions, where potent plants grew which she knew how to select for her purpose. Nine nights she employed in her search, and during that time came not within the doors of her palace nor under any roof, and shunned all intercourse with mortals.