[318] Strabo, VIII. § 10, 19.
[319] Pausanias, Corinth, xxviii. 1.
[320] Pausanias, Corinth, xxvii.
[321] “Goods were not obliged to make the circuit by Corinth; a direct road crossed the isthmus in the narrowest part, and they had even established there a system of rollers on which vessels of small tonnage were transported from one sea to the other.” (Strabo, VIII. ii. § 3.—Polybius, IV. 19.)
[322] Pausanias, Attica, ii.
[323] Cicero, De Republica, II. 4.—Strabo, VIII. vi. § 20.
[324] Strabo, VIII. vi. § 23.—Pliny, Natural History, XXXV. x. § 36.
[325] Arrian, Expedition of Alexander, I. xvi. 4.—Velleius Paterculus, I. 40.—Plutarch, Alexander, 16.
[326] Athenæus, VI. 272.
[327] Titus Livius, XXXII. 16.