into a canter and then into a run. Presently they sweep the plain; both horses lay themselves flat to the ground, their riders bending forward and resting their chins between their horses' ears. Had not the ground been perfectly level, had there been any undulation, the least rise and fall, the spectator would have lost sight of both horses and riders. But while these horses, side by side, thus appeared, flying without wings, flat as a hare, and neither gained on the other, all eyes were diverted to a new spectacle. Directly in the rear of Dart and Lightning, a majestic black horse of unusual size, drawing an old weather beaten chair, strode over the plain; and although he appeared to make no effort, for he maintained a steady trot, before Dart and Lightning approached the goal, the black horse and chair had overtaken the racers, who, on perceiving this new competitor pass them, threw back their ears and suddenly stopped in their course. Thus neither Dart nor Lightning carried away the purse. The spectators now were exceedingly curious to learn whence came the black horse and chair. With many it was the opinion that nobody
