Chapter Three: The River Debouches
When we trace up rivers and their branches toward their source, we come at last to rivulets, that run only in time of rain, and that are dry at other seasons. It is there, says Dr Hutton, that I would wish to carry my reader, that he may be convinced, by his own observation, of this great fact, that the rivers have, in general, hollowed out their valleys.
—John Playfair
These songs that are here and gone,
here and gone,
to purify our ears.
—Gary Snyder
