Book 3
3.3
To the east the Gallicians border on the nation of the Asturians and Keltiberians, the others [border] on the Keltiberians. In length Lusitania is 3000μυρίων καὶ τοͅισχιλίων, in text, but plainly the result of some error. stadia; its breadth, which is comprised between the eastern side and the opposite seacoast, is much less. The eastern part is mountainous and rugged, while the country beyond, as far as the sea, consists entirely of plains, with the exception of a few inconsiderable mountains. On this account Posidonius remarks that Aristotle was not correct in supposing that the ebb and flow of the tide was occasioned by the sea-coast of Iberia and Maurusia.We have followed the suggestion of Kramer in the rendering of this passage, the Greek text being evidently corrupt. For Aristotle asserted that the tides of the sea were caused by the extremities of the land being mountainous and rugged, and therefore both receiving the wave violently and also casting it back. Whereas Posidonius truly remarks that they are for the most part low and sandy.