The pink stamping proceeds from end to end of the piece of paper, until the whole is done; after which it is laid aside to dry. A process precisely similar in every respect is followed with all the subsequent colours, be they few or many. The more complicated the figure is, or the greater the number of colours it contains, the greater is the degree of care required in impressing the successive colours on the papers. In order that no time should be lost, directly the workman has taken a supply of colour on to his block, the boy lays on another coating on the leather. Indeed, the whole process very much resembles the rudest kind of _printing_, with the exception of the use of different colours. The description we have here given is such as will afford a general idea of the nature of the process. Various improvements have been from time to time introduced for facilitating the printing; but it is hardly necessary to dwell upon them. Stencil, Washable, and Flock Paper-hangings. In some of the cheaper papers, the preparation of the carved wooden block, and the time and attention necessary in using them, would be incompatible with the charge made for the finished article: an alteration is therefore made in the mode of proceeding. The principal outline is printed on the paper by means of a carved block in the usual way; but the remaining colours are put in by _stencilling_. A stencil, or stencil-plate, is a piece of leather, oil-cloth, or thin sheet metal, with any required device cut in it. Such a stencil is laid down flat on the paper, and is covered with the required colour by means of a brush. This colour of course passes through the holes in the stencil, and falls on the paper, while the uncut parts of the stencil prevent the colour from falling on any other part of the paper. A device is thus painted on the paper in a much easier manner than by the use of a carved block. But from the nature of the process it is found that the delicate parts of the pattern cannot be represented by this means, as it is difficult to ensure the passage of the colour through small perforations. But for the purposes to which stencilling is applied--viz., the preparation of cheap paper-hangings, this delicacy is not required. One or more carved blocks are used with the stencil plates according to circumstances, the choice between blocks and stencils depending both on the nature of the pattern, and on the value of the paper when finished.