Hamilton thanked him, and the secretary hurried back through the swinging half length door to the inner office. Following the messenger, Hamilton found himself on the main floor with hundreds of machines clicking on every side of him. The chief of the floor looked at the card, turned it over, read what had been penciled on the back, and said promptly: "I think I'll start you on one of the punching machines." "Very well, sir," the boy answered, "I want to learn everything I can." "I have a vacant machine," the other continued, "one of the men is away on sick leave. If you want to begin right away you can start this afternoon. Here," he said, picking up a pamphlet from a pile which lay on a table near by, "is a list of instructions." "I'm quite ready to start now," Hamilton declared. "Your machine is over here, then," his new superior said, leading the way to a far corner of the room. "You had better try to find out as much as you can from the instructions, and one of the foremen will be 'round to tell you more about the working of it a little later." "All right, sir," the boy replied, sitting down at the machine, "I think I can get on to it without much trouble." The keyboard was entirely strange to Hamilton. It looked not unlike that of a big typewriter, or resembled even more closely a linotype keyboard, only it was divided off into sections each one of which was brightly colored, giving the arrangement of the keys quite a gay effect. The instructions were very clear, and with the machine in front of him the boy quickly saw its principles. He was so deeply sunk in the book that he did not notice the coming of the sub-section foreman, who looked down at the boy for a moment or two with an amused smile. Presently he coughed, and Hamilton looked up suddenly to see him standing there. "I beg your pardon," asked the boy, "were you speaking?" "No," said the newcomer, "but I was going to before long. You seem to be just eating up that book." "Mr. Cullern said he thought you would be here before very long," said Hamilton, rightly guessing that this must be the foreman, "and I thought the more I knew about it before you came, the better it would be all 'round." "Do you know anything about census work?" was the next question. "Yes, sir," the boy answered, "I was an assistant special agent on the manufactures division, and I only left my population district the day before yesterday." "I thought it likely that you had been doing enumeration work," the foreman answered, "coming in to-day, just when that end of the work closes, but I didn't know, of course, you had been doing manufactures. I wonder why they sent you to this department; I should have supposed that you would be editing schedules." "I hope to go on the Census Bureau force permanently," the boy explained, "and I was anxious to have a chance to learn all the various parts of the work by doing them myself. Judging from this book, it doesn't seem hard."