CHAPTER XIV.

First Sight of the Valley of Mexico.--A Venice in a mountain Valley.--An Emperor waiting his Murderers.--Cortez mowing down unarmed Indians.--A new kind of Piety.--Capture of an Emperor.--Torturing an Emperor to Death.--The Children paying the Penalty of their Fathers' Crimes.--The Aztecs and other Indians.--The Difference is in the Historians.--The Superstitions of the Indians.--The Valley of Mexico.--An American Survey of the Valley.--A topographical View.--The Ponds Chalco, Xochimulco, and Tezcuco were never Lakes. 167