Esta es la historia de Charles Mason y Jeremiah Dixon, un melancolico astronomo y un exultante topografo britanicos que, a sueldo de la Royal Society, trazaron la linea que separaba Pennsylvania y Maryland, conocida aun hoy como la Linea Mason-Dixon, y de sus viajes por el mundo, contada por el magistral Thomas Pynchon. / The story of Charles Mason and Jeremiah Dixon, an astronomer and a British surveyor, hired by the Royal Society, drew the line between Pennsylvania and Maryland, still known as the Mason-Dixon Line, and his travels around the world told by the masterful Thomas Pynchon.