thick and 70 ft.

high.[10] Moreover, Herodotus's account of the walls has to be set beside a statement which he makes elsewhere, that they had been razed by Darius sixty or seventy years before his visit.[11] The destruction can hardly have been complete.
But in any case Herodotus can only have seen fragments, easily misinterpreted, easily explained by local _ciceroni_ as relics of something quite unlike the facts.
[10] L.Gaillard, _Varietes sinologiques_, xvi (plan) and xxiii.
pp.

8, 235 (Chang-hai, 1898, 1903).

Others give the figures a little differently, but not so as to affect the argument.
[11] Hdt.iii.159.The theory that there were originally two parallel outer walls, that Darius razed one and Herodotus saw the other (Baumstark in Pauly-Wissowa, _Real-Encycl._ ii.

2696), is meaningless.