We find these features repeated in a rectangular stele from the fourth dynasty, which we reproduce on page 61. In Fig. 37 we give some of its details upon a larger scale. The upper part of this stele displays two motives which will be recognised at the first glance as borrowed from carpentry. The first of these is the row of hexagonal studs, which forms a kind of frieze above the pilasters. In the wooden original they must have been formed of six small pieces of wood fixed around a hexagonal centre. Oriental cabinetmakers to this day ornament ceilings and wainscots in the same fashion. Something like them is certain to have existed in that _okel_, whose delicately ornamented walls were so greatly admired by the visitors to the Exhibition of 1867. The same may be said of the row of billets which forms the upper member of the frieze, to which something of an ovoid form has been given by rounding their upper extremities. The same source of inspiration is betrayed by other details of this monument, which has been treated by time with extraordinary tenderness. [Illustration: FIG. 36.--Stele from the 4th dynasty; drawn by Bourgoin.] Tombs have been found at Gizeh and Sakkarah, which are referred to the second and third dynasties. The king Persen, whose name occurs in some of the inscriptions upon these tombs, belongs to that remote period. In many of these tombs the ceiling is carved to represent trunks of palm-trees; even the roughnesses of the bark being reproduced. Most of the sepulchres in which these details have been noticed are subterranean, but they are also to be discovered in a chamber in the tomb of Ti. It is probable that if more mastabas had come down to us with their roofs intact we should find many instances of this kind of decoration.[55] [55] This imitation of wooden roofs was noticed by the _savants_ of the _Institut d'Égypte_. They drew a rock-cut tomb in which the ceiling is carved to look like the trunks of palm trees (_Description, Antiquités_, vol. v. pl. 6, figs. 3, 4, and 5). See also BAEDEKER, part i. p. 360. [Illustration: FIG. 37. DETAILS OF THE UPPER PART OF THE STELE FIGURED ON THE PRECEDING PAGE. --Stele from the 4th dynasty; drawn by Bourgoin.] Our Figures 38 and 39 are taken from another tomb, and show varieties of that ornament which is universally employed as a finial to the panels we have mentioned. In its most careful form it consists of two petals united by a band, which allows the deep slit characteristic of the leaves of all aquatic plants to be clearly visible.