After a while the dogs got the "wire edge" worked off their enthusiasm and settled down to a good steady trot that took us along at the rate of seven miles an hour. They worked together as smoothly as a machine. When they became thirsty, they would lap up the snow beside the path. If one of the dogs stops drawing and begins to shirk, the driver stands up and throws the polka at him, hitting him on the head or back, and then, by a dexterous motion, pushes the narta to one side and recovers the polka as the sledge passes it. The dog so warned will probably go miles with his head over his shoulder watching to see if he is going to be struck again; and all the other dogs, too, keep a weather-eye open. The best dogs are always in the lead, and the poorest ones back near the driver, where he can manage them most easily. If a dog refuses to draw, the sledge is stopped and the driver, to an accompaniment of very choice language, beats the sluggard with the lash of the polka till he deems the punishment sufficient. That dog will need no more reminders for a day at least. Almost always after starting out one or two dogs have to be handled in this manner before they will settle down to the day's work. Not infrequently dog-teams, meeting in the road, will stop and the drivers will proceed to "swap horses," or rather dogs, in the true David Harum style. But the two leaders are never exchanged in this way. They are the driver's favorites, and are too valuable to risk in such a trade. Even if their master is starving he will not part with his leaders.