text:  Those towers are the forts of the famous lines which curiously resembling in shape the later Syracusan walls enclosing Epipalae converge inland from the eastern and western extremities of the city looking down--the western line on the valley of the Polcevera the eastern on that of the Bisagno--till they meet as I have said on the summit of the mountains where the hills cease to rise from the sea and become more or less of a table land running off towards the interior at the distance as well as I remember of between two and three miles from the outside of the city