Reynolds called out to two sweating, dusty, hoarse young fellows: "Go to grub, boys." Without a word they wheeled their horses and silently withdrew, while Reynolds became as instantly active. His voice arose to a shout: "Now, lively, Mose, keep an eye on the herd, and if any cow starts to break out--lively now--turn him in." A big bay steer, lifting his head, suddenly started to leave the herd. Mose spurred his horse straight at him with a yell, and turned him back. "That's right," shouted Reynolds. Mose understood more of it than Reynolds realized. He took his place in the cordon, and aided in the work with very few blunders. The work was twofold in character. Fat cattle were to be cut out of the herd for shipment, unbranded calves were to be branded, and strays tallied and thrown back to their own feeding grounds. Into the crush of great, dusty, steaming bodies, among tossing, cruel, curving horns the men rode to "cut out" the beeves and to rope the calves. It was a furious scene, yet there was less excitement than Mose at first imagined. Occasionally, as a roper returned, he paused on the edge of the herd long enough to "eat" a piece of tobacco and pass a quiet word with a fellow, then spurring his horse, re-entered the herd again. No matter how swift his action, his eyes were quiet. It was hard work; dusty, hot, and dangerous also. To be unhorsed in that struggling mass meant serious injury if not death. The youth was glad of heart to think that he was not required to enter the herd. That night, when the horse herd came tearing down the mesa, Reynolds said: "Now, Mose, you fall heir to my shift of horses, too. Let me show them to you. Each man has four extra horses. That wall-eyed roan is mine, so is the sorrel mare with the star face. That big all-over bay, the finest hoss in the whole outfit, is mine, too, but he is unbroken. He shore is a hard problem. I'll give him to you, if you can break him, or I'll trade him for your Jack." "I'll do it," cried Mose, catching his breath in excitement as he studied the splendid beast. His lithe, tigerlike body glittered in the sun, though his uplifted head bore a tangled, dusty mat of mane. He was neglected, wary, and unkempt, but he was magnificent. Every movement of his powerful limbs made the boy ache to be his master.