Élisée Reclus,
Africa by Élisée Reclus/Volume 2
(1892)
“ He knows the exact position of every oasis, of every pool or puddle, of every spring or well ; the path along the trackless desert is traced in his memory from station to station, and when compelled to fallow a new route experience must aid him in determining the right course. It happens at times that well-known highways become lost, either by the invading sands filling up the wells, or by hostile hordes seizing the stations along the route. Then the memory of the abandoned tract gradually fades into vague tradition, and in the popular imagination it becomes an earthly Eden. ”
