Thus we find the walls to have extended to a vast circumference--from forty-eight to sixty miles; but we are not to suppose them to have been entirely filled up with houses;[96] but, as in the old city of Moscow, to have been in no small part taken up with gardens and other cultivated lands. In regard to the size of some ancient Eastern cities, Mr. Franklin has made some very pertinent remarks, in his inquiry concerning the site of the ancient Palibothra:--"For the extent of the city and suburbs of Palibothra, from seventy-five to eighty miles have been assigned by the Puranas; a distance, said to be impossible for the space occupied by a single city. So, indeed, it might, were we to compare the cities of Asia with those of Europe. The idea of lofty houses of brick and stone, consisting of many stories, with a number of inhabitants, like those of London, Paris, Vienna, and many others, must not be compared with the nature of the Asiatic cities. To look in them for regularly-built squares, and spacious and paved streets, would be absurd." Herodotus gives the extent of the walls of Babylon at one hundred and twenty stades on each side, or four hundred and eighty stades in circumference. Diodorus three hundred and sixty stades in circumference. Clitarchus, who accompanied Alexander, three hundred and sixty-five. Curtius states it at three hundred and sixty-eight; and Strabo at three hundred and eighty-five stades. The general approximation of these measurements would lead us to suppose that the same stade was used by the different reporters; and if this was the Greek itinerary stade, we may estimate the circumference of the great city at twenty-five British miles[97]. "The lines, drawn on maps, are often only used to divide distant mounds of ruin. Accumulations of pottery and brickwork are met with occasionally over a great tract; but the connection, supposed between these and the corn-fields and gardens, within the common precincts of a wall, is gratuitous in the extreme. Imagine London and Paris to be levelled, and the inhabitant of some future city to visit their ruins, as those of then remote antiquity; if, in the one instance, Sèvres, Mont Rouge, and Vincennes, or, in the other, Greenwich, Stratford-le-Bow, Tottenham, Highgate, Hammersmith, Richmond, and Clapham, be taken in as boundaries, or identified respectively as the ruins of Paris and London, what a prodigious extent would those cities gain in the eyes of futurity[98]!"