...s seaboard reaches from the so-called Watchtower of Perseus forty schoeni to the Salters' at Pelusium, while inland it stretches as far as the city of Cercasorus, where the Nile divides and flows to Pelusium and Canobus, and that all the rest of Egypt is partly Libya and partly Arabia—if we follow this account, we can show that there was once no land for the Egyptians; for we have seen that (as t...