But the vengeance of Juno was not yet satiated. She sent a gadfly to torment Io, who, in her flight, swam through the sea, named after her, Ionian. Afterward, roaming over many lands, she reached at last the banks of the Nile. Then Jupiter interceded for her; and upon his engaging not to pay her any further attention, Juno consented to restore her to her form. In a poem dedicated to Leigh Hunt, by Keats, the following allusion to the story of Pan and Syrinx occurs: So did he feel who pulled the boughs aside, That we might look into a forest wide, ... Telling us how fair trembling Syrinx fled Arcadian Pan, with such a fearful dread. Poor nymph--poor Pan--how he did weep to find Nought but a lovely sighing of the wind Along the reedy stream; a half-heard strain, Full of sweet desolation, balmy pain. =58. Callisto= of Arcadia was another maiden who excited the jealousy of Juno. Her the goddess changed into a bear. Often, frightened by the dogs, Callisto, though lately a huntress, fled in terror from the hunters. Often, too, she fled from the wild beasts, forgetting that she was now a wild beast herself; and, bear as she was, she feared the bears. One day a youth espied her as he was hunting. She saw him and recognized him as her son Arcas, grown to manhood. She stopped and felt inclined to embrace him. He, alarmed, raised his hunting spear and was on the point of transfixing her, but Jupiter arrested the crime and, snatching away both of them, placed them in the heavens as the Great and Little Bear. Juno, enraged at seeing her rival so set in honor, hastened to ancient Tethys and Oceanus and, complaining that she was supplanted in Heaven, cried, "So do my punishments result--such is the extent of my power! I forbade her to wear human form,--she and her hateful son are placed among the stars. Better that she should have resumed her former shape, as I permitted Io to do. Perhaps my husband means to take her to wife, and put me away! But you, my foster parents, if you feel for me, and see with displeasure this unworthy treatment of me, show it, I beseech you, by forbidding this guilty couple from coming into your waters." The powers of the Ocean assented, and consequently the two constellations of the Great and Little Bear move round and round in the neighborhood of the pole, but never sink, as do the other stars, beneath the Ocean.[67] =59. Europa= was the daughter of Agenor, king of Ph[oe]nicia, son of the god Neptune. The story of Jupiter's love for her is thus told by the idyllic poet, Moschus: