projecting and thrusting the paper between folding rollers, while at the same moment a knife in the same cylinder severs the sheet, and a rapidly revolving mechanism, resembling in its motion the fingers of a hand, causes their accurate disposal upon traveling belts, which convey them on for final removal. From this rather summary description it will be apparent that the principle of retaining the paper in the web, or unsevered form, up to the final fold and delivery, and performing all the operations without retarding the onward run of the paper, effectually prevents chokes or stoppages through any miscarriage of sheets severed before the folding. Several hundred of these machines have been made and put in operation by the United States; and in offices of the large newspapers in Great Britain and other countries. Previous to the introduction of the “Double Supplement” press, however, Hoe & Co. had made what is known as the “Double Perfecting” machine. The success of this press, which embraces substantially the printing and folding devices embodied in the “Double Supplement” machine, was the connecting link between the ordinary “single” or two-page-wide press and the “Double Supplement” machine. [Illustration: QUADRUPLE PRESS] The next improvement in fast presses was the construction of the machine known as the “Quadruple” Newspaper Press. This was a step in advance of anything heretofore attempted. The first one was constructed in 1887 and placed in the office of the New York “World.” The same principles were embraced in this as in the “Double Supplement,” but developed to a greater extent. The supplement portion of the press was increased in width. By means of ingenious arrangements and manipulation of the webs of paper this press was made to produce eight-page papers at a running speed of 48,000 per hour; also 24,000 per hour of either ten, twelve, fourteen or sixteen page papers; all delivered with great exactness and perfection; cut at the top, pasted and folded ready for the carrier or the mails. [Illustration: STRAIGHT-LINE PRESS] Another form of the Double Supplement and Quadruple machines, embodying substantially the same principles, is what has been termed the “straight-line” press. In this form of construction the cylinders are arranged in horizontal rows, or tiers, one above the other, there being two pairs of cylinders in each tier, with the folding and delivery apparatus at the end of the machine. Some of these presses, made under the patent of Joseph L. Firm, and which belong to R. Hoe & Co., have been constructed. [Illustration: SEXTUPLE PRESS]