The Egyptians were not content with confusing the figures of men and animals in their images of the gods, they combined those of quadrupeds and birds in the same fashion. Thus we sometimes find wings upon the backs of gazelles and antelopes, and now and then a curious animal compounded of a hawk's head and a nondescript body (Fig. 239). Whether such fantastic quadrupeds were consciously and deliberately invented by the Egyptian artists or not, we have no means of deciding. In a period when there was none of that scientific culture which alone enables men to distinguish the possible from the impossible, they may well have believed in winged and bird-headed animals with four legs. For the Greeks of Homer's time, and even for their children's children, the chimera and his kindred were real. They knew where they lived, and they described their habits. In a picture at Beni-Hassan, these imaginary beasts are shown flying before the hunter, and mixed up with the undoubted denizens of the mountains and deserts.[276] Such representations must have been common upon those objects--partly manufactured in Egypt, partly imitated in Phœnicia--which the enterprising inhabitants of the latter country distributed all over Western Asia, and the basin of the Mediterranean. They had a large share of that mystic and enigmatic character which has always been an attraction in the eye of the decorator. They may have helped to develop a belief that the curious beings represented upon them existed in some corner of the world, and they certainly did much to form those decorative types which have been handed down through Greece to the modern ornamentist. [276] MASPERO, _Les Peintures des Tombeaux Égyptiens et la Mosaïque de Palestrine_, p. 82 (_Gazette Archéologique_, 1879). [Illustration: FIG. 239.--Quadruped with the head of a bird. From Champollion, pl. 428 _bis_.] § 7. _The Technique of the Bas-reliefs._ Work in low relief held such an important place in the affections of the Egyptian sculptor that we must study its processes in some detail. In the first place, it was almost invariably painted. Those bas-reliefs which show no trace of colour may be looked upon as unfinished. Secondly, the depth of the relief varied as much as it could, from the almost detached figures of the Osiride piers to the delicate salience of the carvings upon the steles and tomb-walls. A few works in very high relief have been found in the mastabas (Fig. 120, Vol. I.),[277] but they are quite exceptional; the depth is usually from two to three millimetres. It is the same with the Theban tombs. It is only in the life-size figures that the relief becomes as much as a centimetre, or a centimetre and a half in depth; articulations, the borders of drapery, and the bounding lines of the contour, are indicated with much less salience.