In 1862 Mr. Walter began in The Times office, with tools and machinery of his own, experiments for constructing a perfecting press which should print the paper from rolls of paper instead of from sheets. Like his father, Mr. Walter possessed an excellent discrimination of character, and selected the best men to aid him in his important undertaking. Numerous difficulties had, of course, to be surmounted. Plans were varied from time to time; new methods were tried, altered, and improved, simplification being aimed at throughout. Six long years passed in this pursuit of the possible. At length the clear light dawned. In 1868 Mr. Walter ventured to order the construction of three machines on the pattern of the first complete one which had been made. By the end of 1869 these were finished and placed in a room by themselves; and a fourth was afterwards added. There the printing of The Times is now done, in less than half the time it previously occupied, and with one-fifth the number of hands. The most remarkable feature in the Walter Press is its wonderful simplicity of construction. Simplicity of arrangement is always the beau ideal of the mechanical engineer. This printing press is not only simple, but accurate, compact, rapid, and economical. While each of the ten-feeder Hoe Machines occupies a large and lofty room, and requires eighteen men to feed and work it, the new Walter Machine occupies a space of only about 14 feet by 5, or less than any newspaper machine yet introduced; and it requires only three lads to take away, with half the attention of an overseer, who easily superintends two of the machines while at work. The Hoe Machine turns out 7000 impressions printed on both sides in the hour, whereas the Walter Machine turns out 12,000 impressions completed in the same time.