Peterson v. City of New York

In one of its public playgrounds the defendant city of New York maintained a “ Lullaby ” swing, a bench suspended fifteen inches above the ground and divided into seven seats in a row. Plaintiff, a girl of eight, sat in a middle seat. An armrest or handbar separated her from a child on either side. A boy stood between a pair of uprights on either end of the bench. The boys, each holding to an upright, put the bench in motion by taking turns at “ pumping ” against it. The movement was, not forward and backward, but from side to side. Two directors of play, assigned by the municipal authority…