4.
I am unable to fix upon the author’s train of thought. For immediately after having assigned to this portion of the Habitable Earth (whose dimensions he wishes to determine) 30,000 stadia as its
greatest length, and 10,000 stadia as its
greatest breadth, Strabo proceeds to prove what he had just advanced respecting its greatest length. Then he should, it seems, have endeavoured to furnish us, in the same manner, with a proof that its greatest breadth is not more, as he says, than 10,000. But in what follows there is nothing advanced on this point; all that he says is to develope another proposition, viz. that the extent of the Hyrcanian—Caspian Sea is at the utmost 6000 stadia.
The arguments contained in this paragraph on the whole appear to me strange; they rest on a basis which it is difficult to comprehend; they establish explicitly a proposition which disagrees with what the author has said elsewhere, and lastly they present an enormous geographical error.
It will therefore be useful to the reader to explain, as far as I understand it the argument of our author.
1.The exact form of the chlamys is unknown to us, but it was such, that its greatest
breadth was to be found, if not exactly in, at least near, the middle of its
length. The Habitable Earth being of the form of a Chlamys, its greatest
breadth would be found about the middle of its greatest
length.
2. The greatest
length of the Habitable World being 70,000 stadia, its greatest
breadth ought to be found at the distance of 35,000 stadia from its eastern or western extremity, but this greatest
breadth is only 30,000 stadia, and it does not extend, on the north, beyond the parallel of the mouth of the Hyrcanian Sea. B. ii.
3. The meridian which passes at the distance of 35,000 stadia from the eastern or western extremities of the Habitable Earth, is that which, drawn from the mouth of the Hyrcanian Sea to the Northern Ocean, and prolonged in another direction through the mouth of the Persian Gulf to the sea called Erythraean, would pass through the city Artemita. Consequently it is on the meridian of Artemita that we must look for the greatest breadth of the Habitable Earth.
4. On this same meridian, we must reckon from the parallel of the last habitable country in the south to the mouth of the Persian Gulf; about 8000 stadia; then from the mouth of the Persian Gulf to Artemita, 8000 stadia; and from Artemita to the bottom of the Hyrcanian Sea, 8000 stadia: total 24,000 stadia.
5. It being established that the breadth of the Habitable Earth is 30,000 stadia, and not to extend it northwards beyond the parallel of the mouth of the Hyrcanian Sea, where it communicates with the Northern Ocean, the distance to this point from the bottom of this same sea must. be calculated at 6000 stadia.
Du Theil.