Élisée Reclus,
Africa by Élisée Reclus/Volume 1
(1892)
“ The escarpments along the east coast are far more elevated than those on the opposite side. It is sometimes asserted that the Nile traverses Lake Albert without mingling with the surrounding waters. But recent inquiry has shown that such is not the case. According to the varying temperatures, the warmer fluvial current spreads in a thin layer over the surface of the lake, gradually blending with it under the influence of the winds. But when the stream is colder it descends to the lower depths of the lacustrine cavity, where it replaces the lighter fluid. ”
