The Capture of Father Time — L. Frank Baum

Jim was the son of a cowboy, and lived on the broad plains of Arizona. His father had trained him to lasso a bronco or a young bull with perfect accuracy, and had Jim possessed the strength to back up his skill he would have been as good a cowboy as any in all Arizona. When he was twelve years old he made his first visit to the east, where Uncle Charles, his father's brother, lived. Of course Jim took his lasso with him, for he was proud of his skill in casting it, and wanted to show his cousins what a cowboy could do.