"You have not yet told me what was the answer to the riddle which you found," I said. "I am impatient to know by what contradiction of natural sequence the peace and prosperity which you now seem to enjoy could have been the outcome of an era like my own." "Excuse me," replied my host, "but do you smoke?" It was not till our cigars were lighted and drawing well that he resumed. "Since you are in the humor to talk rather than to sleep, as I certainly am, perhaps I cannot do better than to try to give you enough idea of our modern industrial system to dissipate at least the impression that there is any mystery about the process of its evolution. The Bostonians of your day had the reputation of being great askers of questions, and I am going to show my descent by asking you one to begin with

