The centre of the street was entirely given over to the coasters darting down. On either side those ascending toiled, helped occasionally by the good-natured driver of a cutter or delivery sleigh. Then the steer-ropes were passed around a runner support of the cutter and held by the steersman who perched on the front of the bobs. Thus if the bobs upset, or the horse went too fast, he could detach the bobs from the cutter by the simple expedient of letting go the rope. All the others immediately piled on to get the benefit of the ride. Some preferred to stand atop the cutter's runners. It lent a pleasant sensation of a sort of supernatural gliding, this standing, upright and motionless, but nevertheless moving forward at a good rate of speed. Certain drivers refused, however, to allow these liberties, but scowled blackly when addressed by the usual cheerful "Give us a ride, Mister?" To catch surreptitious rides with them was considered a desirable feat. Certain daring youngsters stole up behind and crouched low against the runners. Occasionally they escaped detection, but generally tasted the sting of the whip-lash as it curled viciously backward. Then arose from the whole hill the derisive cry of "whip behind!" At the top Bobby found a large crowd awaiting its turn. Some he knew, others were strangers to him. All classes were represented, rich and poor, rough and gentle. To one side the girls and smallest boys were sliding decorously a hundred feet or so down the deeper snow of the gutter. They sat facing forward on high framework sleds with flat runners, one foot on either side. Whenever the sled showed indications of speed, the feet were used as brakes. The little girls were dressed very warmly in leggings, arctics, flannel petticoats and heavy dresses, and wore tied close about their heads knit or fuzzy gray hoods that framed their red cheeks bewitchingly. Bobby had always coasted in this manner, but now he looked on them with a sort of pitying contempt. The main group stood waiting. New-comers fell in behind so that some rough semblance of rotation was maintained. The bobs' crews settled themselves with the deftness of long practice. Then bending to his task the pusher at the rear dug his toes in, while the others hunched. With a creak the runners gave way their hold on the frozen snow; the bobs began slowly to move. As momentum and the downward curve of the hill exerted their influence, the pusher found his task easier and easier. His then the nice decision as to just how long to continue to push. To jump on too soon was a disgrace; to delay too long was a certainty of rolling over and over in the snow while your bobs went on without you. The artistic pusher came aboard gracefully, with a flying, forward leap, at the precise moment when the equilibrium of forces permitted him to alight as softly as a thistledown. The bobs shot away in a whirl of snow-dust.