The Pacing Mustang
camp to eat and rest, and then move on up stream.
All that day Jo followed, and managed, when it was needed, that the herd should keep the great circle, of which the wagon cut a small chord. At sundown he came to Verde Crossing, and there was Charley with a fresh horse and food, and Jo went on in the same calm, dogged way. All the evening he followed, and far into the night, for the wild herd was now getting somewhat used to the presence of the harmless strangers, and were more easily followed; moreover, they were tiring out with perpetual travelling. They were no longer in the good grass country, they were not grain-fed like the horses on their track, and above all, the slight but continuous nervous tension was surely telling. It spoiled their appetities, but made them very thirsty. They were allowed, and as far as possible encouraged, to drink deeply at every chance. The effect of large quantities of water on a running animal is well known; it tends to stiffen the limbs and spoil the wind. Jo carefully guarded his own horse against such excess, and both he and his horse were fresh when they
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