Signals above the brief command
That sight and sense will understand,—
And open swings the desert land!
A shot! A hundred, thousand more
The grassy meadows echo o'er;
A shout! From countless throats a shout,
On rolling wings leaps madly out;
A yell, a raging roar, that flies
On bounding winds o'er hill and glen,
And 'round the land electrifies