The different methods of folding sheets illustrate the development of machinery. Often these different methods are found together in one workroom. For example, in an edition bindery in New York the sheets are fed into one of the six point folding machines or placed in the automatic folder or, very rarely, folded by hand. In the first case, girls sitting on high stools feed each separate sheet into the machine, placing the printed dots on needle-like points, which serve as guides, while their helpers, the learners, take out the folded sections and “jog” them straight on tables. If the pages are to be folded by the automatic machine, they are placed in the proper position under two rubber knuckles, which push them toward the folding rollers. The forewoman, in addition to her other work, keeps watch to see that the folding is properly done, but no hand work is required except to pile the sheets under the rubber fingers and to lift the folded sections from the boxes into which the machine delivers them. Between the “point” machine and the “automatic” was another invention not found in this bindery. In it the points gave place to automatic gauges, and the girl who fed it need only flick the sheet from the pile so that the machine could grip it. By dispensing with the points on which each sheet must be fitted much time was saved. Obviously the next step was to supply an automatic feeder. The stories of displaced workers illustrate what happens when new machines are introduced. One girl had been employed in bindery work three years. As a learner, she had “knocked up” sections folded by the “point” machine. She was paid three dollars a week, and continued the same process one year. Then when a vacancy occurred, she was given a chance to operate the machine. It was not easy to learn, nor could it be done in a day or a week. At first she received a weekly wage of four dollars and fifty cents, but “advanced rapidly” until she was earning nine dollars.