The animal gave a tremendous bound, and broke into a heart-breaking gallop. A murmur of admiration came from the cowboys as Bob was whirled off in the direction of the haystacks. "Kin ride ter beat all creation," commented one. "Bravo!" cried Mr. Irwin. The rider was soon hidden behind the yellow piles, a moment later reappearing far down the valley. They watched him turn and canter lazily back, and gave him a hearty cheer when he slipped from the saddle. One by one the boys proved their horsemanship, and Conroy's turn came last. Jack felt that all eyes were upon him. Making a desperate effort to appear as if he had never enjoyed anything more in his life, he approached a tawny sorrel whose ears were held threateningly back. A pair of wicked-looking eyes glared into his own. Jack devo

