Strabo Geography 2.5.15

[15] Sailing thence, Libya lies to the south. Its most western portions project a little beyond Gades; it afterwards forms a narrow promontory receding towards the east and south, and becoming slightly broader, till it touches upon the western Ethiopians, who are the last ¹ of the nations situated below Carthage, and adjoin the parallel of the Cinnamon Country. They, on the contrary, who sail from the Sacred Promontory, ² towards the Artabri, ³ journey northwards, having Lusitania ⁴ on the right hand. The remaining portion forms an obtuse angle towards the east as far as the extremities of the Pyrenees which terminate at the ocean. Northward and opposite to this are the western coasts of Britain. Northward and opposite to the Artabri are the islands denominated Cassiterides, ⁵ situated in the high seas, but under nearly the same latitude as Britain. From this it appears to what a degree the extremities of the habitable earth are narrowed by the surrounding sea.