Fine papers are, in some cases, hot-pressed and glazed. In hot-pressing, a number of stout cast-iron plates are heated in an oven, and then put into a screw-press in alternate layers, with highly glazed pasteboards, between which the paper is placed in open sheets; and the hard polished surfaces of the pasteboards, aided by the heat and pressure, impart that beautiful appearance which belongs to hot-pressed paper. A yet more smooth and elegant surface is produced by the process of glazing. The sheets of paper are placed separately between very smooth clean copper-plates. These are then passed through rollers, which impart a pressure of from twenty to thirty tons. After three or four such pressures, the paper is called _rolled_, and sometimes also _hot-pressed_; but, if passed more frequently through the rollers, the paper acquires a higher surface, and is then called glazed. The general introduction of steel pens has increased the demand for smooth papers, and has led to improvements in finishing them. As an improvement in the manufacture of paper sized by the machines now in use, it is proposed to conduct the web of paper, after it has been either partially or completely dried, through a trough of cold water, then to pass it through a pair of pressing-rolls, and afterwards to dry it on reels, or over hot cylinders. The paper thus treated will be found to "bear" much better, and admit of erasures being made on the surface of such paper, and written over, without the ink running in the way it does when the paper is sized and dried in the usual manner. It has been found that when paper is dried, after sizing, by the drying-machines in present use, the paper is very harsh; and, until it stands for some time to get weather (as it is technically termed), great difficulty is experienced in glazing the paper. This inconvenience is proposed to be overcome by passing the paper partially round a hollow cylinder, through which a small stream of cold water is made to run. By this means the heat in the paper is carried off, and the paper is rendered more tractable, and brought to a proper state for undergoing the glazing operation.