at him. For the tradition is that Hercules slew the eagle that was ever tormenting Prometheus on Mount Caucasus, and released Prometheus from his chains. The last paintings are Penthesilea dying and Achilles supporting her, and two Hesperides carrying the apples of which they are fabled to have been the keepers. This Panænus was the brother of Phidias, and at Athens in the Painted Stoa he has painted the action at Marathon. At the top of the throne Phidias has represented above the head of Zeus the three Graces and three Seasons. For these too, as we learn from the poets, were daughters of Zeus. Homer in the Iliad has represented the Seasons as having the care of Heaven, as a kind of guards of a royal palace.[70] And the base under the feet of Zeus, (what is called in Attic θρανίον), has golden lions engraved on it, and the battle between Theseus and the Amazons, the first famous exploit of the Athenians beyond their own borders. And on the platform that supports the throne there are various ornaments round Zeus and gilt carving, the Sun seated in his chariot, and Zeus and Hera, and near is Grace. Hermes is close to her, and Vesta close to Hermes. And next to Vesta is Eros receiving Aphrodite just rising from the sea, who is being crowned by Persuasion. And Apollo and Artemis Athene and Hercules are standing by, and at the end of the platform Amphitrite and Poseidon, and Selene apparently urging on her horse. And some say it is a mule and not a horse that the goddess is riding upon, and there is a silly tale about this mule. I know that the size of the Olympian Zeus both in height and breadth has been stated, but I cannot bestow praise on the measurers, for their recorded measurement comes far short of what anyone would infer looking at the statue. They make the god also to have testified to the art of Phidias. For they say when the statue was finished, Phidias prayed him to signify if the work was to his mind, and immediately Zeus struck with lightning that part of the pavement, where in our day there is a brazen urn with a lid. And all the pavement in front of the statue is not of white but of black stone. And a border of Parian marble runs round this black stone, as a preservative against spilled oil. For oil is good for the statue at Olympia, as it prevents the ivory being harmed by the dampness of the grove. But in the Acropolis at Athens, in regard to the statue of Athene called the Maiden, it is not oil but water that is advantageously employed to the ivory: for as the citadel is dry by reason of its great height, the statue being made of ivory needs to be sprinkled with water freely. And when I was at Epidaurus, and enquired why they use neither water nor oil to the statue of Æsculapius, the sacristans of the temple informed me that the statue of the god and its throne are over a well. CHAPTER XII.