I saw a big bull, with head down, tail raised, charging my horse.

He answered Frank's yell of command with a furious grunt.

I was paralyzed at the wonderfully swift action of the shaggy brute, and I sat helpless.

Spot wheeled as if he were on a pivot and plunged out of the way with a celerity that was astounding.

The buffalo stopped, pawed the ground, and angrily tossed his huge head.