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Aratus, the chief of Sicyon, was an acknowledged judge of paintings, and Sicyon was then the first school of Greece. The pieces which he sent to Philadelphus were mostly those of Pamphilus, the master, and of Melanthius, the fellow-pupil, of Apelles. Pamphilus was famed for his perspective; and he is said to have received from every pupil the large sum of ten talents a year. His best known pieces were, Ulysses in his ship, and the victory of the Athenians near the town of Phlius. It was through Pamphilus that, at first in Sicyon, and afterwards throughout all Greece, drawing was taught to boys as part of a liberal education. Neacles also painted for Aratus; and we might almost suppose that it was as a gift to the King of Egypt that he painted his Sea-fight between the Egyptians and the Persians, in which the painter shows us that it was fought within the mouth of the Nile by making a crocodile bite at an ass drinking on the shore.
S. Rappoport, History of Egypt

Stelios Lydakis, Ancient Greek Painting and Its Echoes in Later Art Publisher: Getty Publishing ISBN: 0892366834