To his astonishment, he saw the prints of broad tired wagons, and the tracks of oxen and horses. They extended as far up and down stream as he could see. The inference was plain: in wandering from the course of Bucephalus, he had found his way to a portion of the main path followed by the emigrants going westward. This as was the rule was spread over a space of a mile or more in width, and still greater in other places.