After obelisks we should mention as most important the sculptured _Memnons._ The huge statues of Memnon of Thebes, of which Strabo was still able to see one fully preserved and made from a single stone, while the other, which uttered a sound at setting of the sun, was already in his day mutilated, possessed the human form. They were two seated colossal human figures in their grandiose and massive proportions rather inorganically and architectonically designed than in the strict sense sculptured, as also appears in the case of the linear arrangement of the Memnon columns, and, inasmuch as they are only valid in such equable order and size, they wholly digress from the aim of sculpture and are subject to the art of building. Hirt[46] refers the colossal melodious statue, which Pausanias states the Egyptians regarded as the image of Phamenoph, not so much to deity as to a king, who possessed in it his monument, as Osymandyas and others in a similar way. It is, however, quite possible that these imposing images supplied a more definite or indefinite conception of something universal. Both Egyptians and Aethiopians worshipped Memnon, the son of the Dawn, and sacrificed to him on the first appearance of the solar rays by means of which the image greeted with its vocal sound the worshippers. Producing as it did vocal sound it is not merely in virtue of its form of importance and interest, but by reason of its nature as a living, significant and revealing thing, albeit the mode of revelation is purely one of symbolic suggestion. This relation we have pointed out in the case of these statues of Memnon is equally true in that of the _Sphinxes_, which we have already discussed in our reference to their symbolic significance. We find these Sphinxes in Egypt not merely in extraordinary numbers but also of stupendous size. One of the most famous of them is the one which is situated in close proximity to the Cairo group of pyramids. Its length is 148 metres, its height from the claws to the head is 65 metres; the feet that repose in front, measured from the breast to the points of the claws, are 57 metres, and the height of the claws 8 metres. This enormous mass of rock, however, has not in the first instance been excavated and then carried to the place now occupied by it. On the contrary, the excavations which have been made to its foundations prove that the foundation consists of limestone, and in a manner which showed that the entire huge work was hewn from one rock of which it only forms a portion. This enormous image more nearly approaches, it is true, genuine sculpture in its colossal proportions; it is, however, equally true that the Sphinxes were also set side by side linearly in passages, in which position they, too, receive a wholly architectonic character.