The puffing, panting engine that dragged the long train of heavy cars into the busy little city of Bradford, in the State of Pennsylvania, one day last summer, witnessed through its one white, staring eye, sometimes called the head-light, many happy meetings between waiting and coming friends; but none was more hearty than that between two college mates-one who had graduated the year previous, and the other who hoped to carry off the honors at the close of the next term.