Because on the steep hillside the water runs very rapidly, and is not easily turned aside. Where the ground is nearly level, it runs slowly, and is easily turned from its course.

LESSON XX.

THE BROOK.

From a fountain
In a mountain,
Drops of water ran
Trickling through the grasses;
So our brook began.

Slow it started;
Soon it darted,
Cool and clear and free,
Rippling over pebbles,
Hurrying to the sea.

Children straying
Came a-playing
On its pretty banks;
Glad, our little brooklet
Sparkled up its thanks.

Blossoms floating,
Mimic boating,
Fishes darting past,
Swift, and strong, and happy,
Widening very fast.

Bubbling, singing,
Rushing, ringing,
Flecked with shade and sun.
Soon our pretty brooklet
To the sea has run.

LESSON XXI.

WORK OF FLOWING RIVERS.

Would you like to know more about brooks and rivers--about the work they do?

Notice what happens when it rains. Little tiny streams are formed, which chase each other down the slopes. See how they cut away the loose soil and carry it off. Notice how muddy this loose soil makes the water. What becomes of this loose soil, or mud?