Note 2898 — BOOK IV. AN ACCOUNT OF COUNTRIES, NATIONS, SEAS, TOWNS, HAVENS, MOUNTAINS, RIVERS, DISTANCES, AND PEOPLES WHO NOW EXIST OR FORMERLY EXISTED.
John Bostock translation
From the word gles or glas, which primarily means ‘glass,’ and then figuratively “amber.” Probably Œland and Gothland. They will be found again mentioned in the Thirtieth Chapter of the present Book. See p. 351.