Chapter VI

STRATIFIED ROCKS OF MECHANICAL ORIGIN--FURTHER
ILLUSTRATIONS.

Impossible to witness the Formation of Stratified Rocks in the
Depths of the Ocean--On a small scale Examples are exhibited
by Rivers and Lakes--Alluvial Plains--their extraordinary Fertility
--Great Basin of the Nile--Experiments of the Royal Society--The
Mississippi and the Orinoco--Some Rivers fill up
their own Channels--Case of the River Po--Artificial Embankments--Large
Tract of Alluvial Soil deposited by the Rhone in
the Lake of Geneva--Deltas--The Delta of the Ganges and
Brahmapootra--Delta of the Nile, 100