Wind (bora), which sweeps down from the Caucasus Mountains with great violence.
There, before the colonists came, wide sweeps of dull green bracken or wiry yellow-green tussocks seemed bleak and monotonous enough.
Off the east and south shores of the colony the Mozambique or Agulhas current sweeps south-westward with force sufficient to set up a back drift.
Along the Swedish coast a deep channel runs northward from outside the island of Oland; this is entirely cut off to the south and east by a bank which sweeps eastward and northward from near Karlskrona, and on which the island of Gotland stands, but it communicates at its northern end with the Gotland deep, and near the junction opposite Landsort is the deepest hole in the Baltic (420 metres = 2 3 o fathoms).
The tidal wave of the Southern Ocean, which sweeps uninterruptedly round the globe from east to west, generates a secondary wave between Africa and South America, which travels north at a rate dependent only on the depth of the ocean.