During a long period of stability the river makes for itself hundreds of miles of perfect channel, down which it flows through curves of ample sweep, and between sloping banks that show little change from year to year.
(sloping banks; show; little change) (the river; makes down; T:During a long period of stability) Context(the river makes down,List([34, 103))):(it; flows; through curves of ample sweep)
the river makes down,List([34, 103))
sloping banks the river it
show makes down flows
little change
T:During a long period of stability
through curves of ample sweep