[252] Aristotle, Politics, ii, 9; Plutarch, Agis, c. 7.
[253] Athenæus, citing Phylarchus, iv, 20.
[254] Grote, x, 402; Mahaffy, Greek Life and Thought, p. 457; Greek World under Roman Sway, p. 237; M'Culloch, Treatises and Essays, ed. 1859, pp. 276-78.
[255] Mahaffy, Greek Life and Thought, p. 452.
[256] M'Culloch, as cited, p. 275.
[257] Thucydides, i, 93.
[258] Grote, iv, 341, 342.
[259] Citations in Boeckh, bk. i, ch. 12.
[260] Boeckh, bk. i, ch. 12. Cp. De Pauw, Recherches philosophiques sur les Grecs, 1787, i, 55-60.
[261] See E. Ardaillon, Les mines du Laurion dans l'antiquité, 1897, ch. v.