Work out the painting as directed under "Colors," beginning with the gold where it is in masses, burnishing it level when dry, as before explained: smaller portions can more readily be done afterwards. Paint each color the full strength at once, keeping in mind that it becomes lighter when dry, and finishing each color up to the last stage before beginning another. OUTLINING AND FINISHING.--When the work is at this stage, the colors will have a dull and hopeless appearance; but, as the outline is added, it changes to one more pleasing. The addition of the fine white edging and hair-line finishings (as in fourteenth-century style), still further heightens the effect, giving the appearance of great elaborateness and brilliancy to the coloring, and beauty and decision to the forms. In the conventional style of treatment in coloring, a careful outline is an imperative necessity, and, in this part of the work, practice in the use of the brush is essential. Sometimes objects are outlined in a deeper shade of the local color--as a pink flower or spray with lake, pale blue with darker blue, &c.; but this is not very usual. In the _real_ or natural treatment of the objects forming the subject of the illumination, an outline is seldom used, everything being colored and shaded as in Nature. Lamp black with a little gum water will be found the best medium, being capable of making a very fine or a firm line, at the same time retaining its intense glossy black appearance. A little practice will enable the learner to know the best consistency to make the ink. As it evaporates, a few drops of water may be added, and rubbed up with the brush or finger. For _hair-line finishing_, either light lines upon a darker ground or _vice versâ_, the same kind of brush will be used as for outlining. For _diapers_ of a geometrical character, the drawing-pen and small bow-pen will be of great use, either upon color or gold grounds. The ivory tracing point is used to indent upon gold scrolls or diapers. Sometimes there is put over the entire back-ground a multitude of minute points of gold, but not too close together, and punctured with the point of the agate or tracing-point, producing a beautiful glittering effect. DESCRIPTION OF PLATE I.