If it were your first visit, and he had touched in you some sympathetic chord, he would have uncovered a nondescript combination of glass jars, horse-shoe magnets, and copper wires which lay in a curious shaped box beneath one of the windows, and in a voice trembling with emotion as he spoke, he would have explained to you the value of this or that lever, and its necessary relation to this new invention of his which was so soon to revolutionize the motive power of the world. Or he would perhaps have talked to you as he did to me, of his theories and beliefs and of what he felt sure the future would bring forth. "The days of steam-power are already numbered. I may not live to see it, but you will. This new force is almost within my grasp. I know people laugh, but so they have always done. All inventors who have benefited mankind have first been received with ridicule. I can expect no better treatment. But I have no fear of the result. The steady destruction of our forests and the eating up of our coal-fields must throw us back on chemistry for our working power. There is only one solution of this problem--it lies in the employment of a force which this machine will compel to our uses. I have not perfected the apparatus yet, as you see, but it is only a question of time. To-morrow, perhaps, or next week, or next year--but it will surely come. See what Charles Bright and this Mr. Cyrus Field are accomplishing. If it astonishes you to realize that we will soon talk to each other across the ocean, why should the supplanting of steam by a new energy seem so extraordinary? The problems which they have worked out along the lines of electricity, I am trying to work out along the lines of galvanism. Both will ultimately benefit the human race." And while he talked you would have listened with your eyes and ears wide open, and your heart too, and believed every word he said, no matter how practical you might have been or how unwilling at first to be convinced.