ch. 7
2.7.1
By this reckoning, then, the seaboard of Egypt will be four hundred and fifty miles in length. Inland from the sea as far as Heliopolis, Egypt is a wide land, all flat and watery and marshy. From the sea up to Heliopolis is a journey about as long as the way from the altar of the twelve gods at Athens to the temple of Olympian Zeus at Pisa.
2.7.2
If a reckoning is made, only a little difference of length, not more than two miles, will be found between these two journeys; for the journey from Athens to Pisa is two miles short of two hundred, which is the number of miles between the sea and Heliopolis.
