the ground-tint, keeping it as even as possible; and heighten the letters or ornaments in any way that may be requisite to make them correspond with the models from which they may have been taken. By adopting this method of working, with care and neatness of hand, very agreeable results may be obtained, without its being indispensable for the illuminator to be a skilful draughtsman. The tracing-paper may be ultimately attached to its proper place, and finished off, as will be hereafter recommended; and, if cleverly managed, it will be impossible to detect that that material has ever been employed. The special convenience of illuminating upon canvass is, that instead of the operator having to work either from a ladder or scaffold, or on a vertical or horizontal surface, he may do all that is necessary at an easel or on a table on terra firma. His work when completed may be cut out of the sheet of canvass on which it has been painted, and may be fastened to the wall, ceiling, or piece of furniture for the decoration of which it may have been intended. All that is essential, with respect to the designs which may be wrought upon it, is, to take care that they are fitted for the situations they may be ultimately intended to occupy. Thus it must be obvious that it would be an entire waste of time to elaborate designs destined to be fixed many yards from the eye, as minutely as those which would be in immediate proximity to it. No branch of designing illuminated or other ornament requires greater experience to succeed in than the adjustment of the size of parts and patterns to the precise conditions of light, distance, foreshortening, &c., under which they are most likely to be viewed.