We have hitherto described Egyptian architecture according to the general character of its forms and principles of construction; we must now attempt to give a true idea of its method of decoration. This may be described in a very few words. For the decoration of the vast surfaces, either plain or curved, which their style of architecture placed at their disposal, the Egyptians made use of paint. They overlaid with a rich system of colour the whole inside and outside of their buildings, and that with no desire to accentuate, by a carefully balanced set of tones, the great constructive lines, contours and mouldings, nor with any wish to produce merely a complicated, polychromatic ornamentation. Groups of figures borrowed from the animal and vegetable kingdoms form its chief constituents. In these picture decorations, man is seen in every attitude or vocation, side by side with birds, fishes and quadrupeds, and with those composite forms which have been created by himself to represent his gods. Intaglio and bas-relief often lend their help to the ornament. Images and explanatory inscriptions are sometimes cut in the stone, sometimes modelled in slight relief; but in either case all figures are distinguished by their proper colour as well as by the carved or modelled outlines. It will thus be seen that Egyptian decoration is distinguished by the intimate and constant alliance of two elements which are often separated in that of other races. The first is the employment of colour to give variety to surfaces and to distinguish different members of the architecture by the opposition of tones. The second is the employment of colour for the representation of life, for which purpose every surface is seized upon, whether the face of a wall, or the round shaft of a column. The decorator is not satisfied to use colour to give force to the lines of a building and to increase its general effect; he also makes use of it to interpret, to multiply, and to immortalize the ideas which float through his own brain. A building thus ornamented presents us with a series of pictures embodied in its own constitution. From cornice to foundation, upon wall and column, it is covered with an unending series of wall paintings, which, like a gorgeous tapestry, envelop and embellish it without hiding any of the details of its construction.