Contrast this speed with the former slowness. Go back to the beginning of the century. Before the year 1814 the turn-out of newspapers was only about 300 single impressions in an hour--that is, impressions printed on only one side of the paper. Koenig by his invention increased the issue to 1100 impressions. Applegath and Cowper by their four-cylinder machine increased the issue to 4000, and by the eight-cylinder machine to 10,000 an hour. But these were only impressions printed on one side of the paper. The first perfecting press--that is, printing simultaneously the paper on both sides--was the Walter, the speed of which has been raised to 12,000, though, if necessary, it can produce excellent work at the rate of 17,000 complete copies of an eight-page paper per hour. Then, with the new method of stereotyping--by means of which the plates can be infinitely multiplied and by the aid of additional machines, the supply of additional impressions is absolutely unlimited. The Walter Press is not a monopoly. It is manufactured at The Times office, and is supplied to all comers. Among the other daily papers printed by its means in this country are the Daily News, the Scotsmam, and the Birmingham Daily Post. The first Walter Press was sent to America in 1872, where it was employed to print the Missouri Republican at St. Louis, the leading newspaper of the Mississippi Valley. An engineer and a skilled workman from The Times office accompanied the machinery. On arriving at St. Louis--the materials were unpacked, lowered into the machine-room, where they were erected and ready for work in the short space of five days.