13.

Again, we know that the Cinnamon Country is the most southerly point of the habitable earth. According to Hipparchus’s own statement, the latitude of this country, which marks the commencement of the temperate zone, and likewise of the habitable earth, is distant from the equator about 8800 stadia.501 And since he likewise says that from the equator to the parallel of the Dnieper there are 34,000 stadia, there will remain a distance of 25,200 stadia between the parallel of the Dnieper (which is the same as that which passes over the side of Keltica next the Ocean) to that which separates the torrid from the temperate zone. It is said that the farthest voyages now made north of Keltica are to Ierne,502 which lies beyond Britain, and, on account of its extreme cold, barely sustains life; beyond this it is thought to be uninhabitable. Now the distance between Keltica and Ierne is estimated at not more than 5000 stadia; so that on this view they must have estimated the whole breadth of the habitable earth at 30,000 stadia, or just above.