Page:A Journey to the Western Islands of Scotland - Johnson (1775).djvu/95

 than is necessary for the discharge of the inland waters.

We passed many rivers and rivulets, which commonly ran with a clear shallow stream over a hard pebbly bottom. These channels, which seem so much wider than the water that they convey would naturally require, are formed by the violence of wintry floods, produced by the accumulation of innumerable streams that fall in rainy weather from the hills, and bursting away with resistless impetuosity, make themselves a passage proportionate to their mass.

Such capricious and temporary waters cannot be expected to produce many fish. The rapidity of the wintry deluge sweeps them away, and the scantiness of the summer stream would hardly sustain them above the ground. This is the reason why