John Evans,
The Ancient Stone Implements, Weapons…
(1897)
“ Or again, taking our stand at Ealing, or Acton, or Highbury, and looking over a broad valley fully four miles in width, with the river flowing through it at a depth of 100 feet below its former bed, in which, beneath our feet, are relics of human art deposited at the same time as the gravels; which of us can picture to himself the lapse of time represented by the excavation of a valley on such a scale, by a river larger, it may be, in volume than the Thames, but still draining only the same tract of country? ”
