3. Diodorus Siculus, 1. v. p. 340, Edit. Wessel. Herodian,
1. vi. p. 221. Jornandes, c. 55. On the banks of the Danube,
the wine, when brought to table, was frequently frozen into
great lumps, 'frusta vini'. Ovid. Epist. ex Ponto, 1. iv. 7,
9, 10. Virgil. Georgic. l. iii. 355. The fact is confirmed
by a soldier and a philosopher, who had experienced the
intense cold of Thrace. Xenophon, Anabasis, l. vii. p. 560.
Edit. Hutchinson.