Once I had received this letter, whenever, at luncheon-time, the post was brought in, I could tell at once when it was from him that a letter came, for it had always that second face which a person assumes when he is absent, in the features of which (the characters of his script) there is no reason why we should not suppose that we are tracing an individual soul just as much as in the line of a nose or the inflexions of a voice.