Book 15
4.3
And now rolling to level ground and cutting its way between high and widely separated banks, it enters a vast round lake, which its Raetian neighbour calls Brigantia;The Lake Constance. this is four hundred and sixty stades long and in breadth spreads over an almost equal space; it is inaccessible through the bristling woods of the gloomy forest except where that old-time practical Roman ability, in spite of the opposition of the savages, the nature of the region, and the rigour of the climate, constructed a broad highroad.
4.4
Into this pool, then, the river bursts roaring with frothing eddies, and cleaving the sluggish quiet of the waters, cuts through its midst as if with a boundary line. And as if the element were divided by an everlasting discord, without increasing or diminishing the volume which it carried in, it emerges with name and force unchanged, and without thereafter suffering any contact it mingles with Ocean’s flood.
4.5
And what is exceeding strange, neither is the lake stirred by the swift passage of the waters nor is the hurrying river stayed by the foul mud of the lake, and though mingled they cannot be blended into one body; but if one’s very sight did not prove it to be so, one would not believe it possible for them to be kept apart by any power.
