I wrote the foregoing about three years ago, in Heidelberg, and laid the manuscript aside, purposing to add to it instances of mind-telegraphing from time to time as they should fall under my experience. Meantime the ‘crossing’ of letters has been so frequent as to become monotonous. However, I have managed to get something useful out of this hint; for now, when I get tired of waiting upon a man whom I very much wish to hear from, I sit down and _compel_ him to write, whether he wants to or not; that is to say, I sit down and write him, and then tear my letter up, satisfied that my act has forced him to write me at the same moment. I do not need to mail my letter—the writing it is the only essential thing. Of course I have grown superstitious about this letter-crossing business—this was natural. We stayed awhile in Venice after leaving Heidelberg. One day I was going down the Grand Canal in a gondola, when I heard a shout behind me, and looked around to see what the matter was; a gondola was rapidly following, and the gondolier was making signs to me to stop. I did so, and the pursuing boat ranged up alongside. There was an American lady in it—a resident of Venice. She was in a good deal of distress. She said: ‘There’s a New York gentleman and his wife at the Hotel Britannia who arrived a week ago, expecting to find news of their son, whom they have heard nothing about during eight months. There was no news. The lady is down sick with despair; the gentleman can’t sleep or eat. Their son arrived at San Francisco eight months ago, and announced the fact in a letter to his parents the same day. That is the last trace of him. The parents have been in Europe ever since; but their trip has been spoiled, for they have occupied their time simply in drifting restlessly from place to place, and writing letters everywhere and to everybody, begging for news of their son; but the mystery remains as dense as ever. Now the gentleman wants to stop writing and go to cabling. He wants to cable San Francisco. He has never done it before, because he is afraid of—of he doesn’t know what—death of his son, no doubt. But he wants somebody to _advise_ him to cable—wants me to do it. Now I simply can’t; for if no news came that mother yonder would die. So I have chased you up in order to get you to support me in urging him to be patient, and put the thing off a week or two longer; it may be the saving of this lady. Come along; let’s not lose any time.’