So engaged were they in this talk, that the animals they were riding were allowed insensibly to slacken their pace, until they had fallen a considerable distance behind the train. They even stopped to snatch an occasional mouthful of grass from the wayside, without opposition on the part of their young riders. These knew that, whenever they chose, a sharp gallop of a minute or two would place them alongside of the wagons, and so they carelessly permitted the distance between them and the train to become much greater than it should have been.