Another marvel, too, connected with the forests! They cover all the rest of Germany, and by their shade augment the cold. But the highest of them all are those not far distant from the Chauci already mentioned, and more particularly in the vicinity of the two lakes2199 there. The very shores are lined with oaks,2200 which manifest an extraordinary eagerness to attain their growth: undermined by the waves or uprooted by the blasts, with their entwining roots they carry vast forests along with them, and, thus balanced, stand upright as they float along, while they spread afar their huge branches like the rigging of so many ships. Many is the time that these trees have struck our fleets with alarm, when the waves have driven them, almost purposely it would seem, against their prows as they stood at anchor in the night; and the men, destitute of all remedy and resource, have had to engage in a naval combat with a forest of trees!

(2.) In the same northern regions, too, is the Hercynian2201 Forest, whose gigantic oaks,2202 uninjured by the lapse of ages, and contemporary with the creation of the world, by their near approach to immortality surpass all other marvels known. Not to speak of other matters that would surpass all belief, it is a well-known fact that their roots,2203 as they meet together, upheave vast hills; or, if the earth happens not to accumulate with them, rise aloft to the very branches even, and, as they contend for the mastery, form arcades, like so many portals thrown open, and large enough to admit of the passage of a squadron of horse.

(3.) All these trees, in general, belong to the glandiferous class,2204 and have ever been held in the highest honour by the Roman people.