Thus if we wish thoroughly to understand Greece, we must start from Memphis and go through Babylon and Nineveh, Tyre and Sidon. But Greece will be the aim of our voyage, and Egypt will interest us less on her own account than on account of that unique and unrivalled people who inherited her inventions and discoveries, and made them the foundation for a productiveness in which are summarized all the useful labours of antiquity. Egyptian art will be followed by us down to the moment in which it lost its creative force and with it its prestige. We shall rarely have occasion to speak of the Ptolemaic remains of Egyptian art. Now and then we shall go to them for examples when any particular detail which we desire to mention has not been preserved for us by earlier monuments, but even then we shall require to have good reasons for believing that such detail did in fact originate in the creative periods of the national history. The Egypt of the Pharaohs has not even yet been entirely explored. Are we to believe that the splendid edifices reared in the cities of the Delta, and especially at Sais, by the twenty-sixth dynasty, have perished to the last stone? We are loth to think that it is so, but no remains have yet been discovered. Some day, perhaps, well directed excavations may bring to light the temples which Herodotus so greatly admired; and who knows but that we may find in them more than one of those motives and arrangements which at present are only known to exist in the buildings of the Ptolemies and of the Roman emperors? CHAPTER II. PRINCIPLES AND GENERAL CHARACTERISTICS OF EGYPTIAN ARCHITECTURE. § 1.--_Method to be Employed by us in our Study of this Architecture._ In the enterprise which we have undertaken the study of oriental art is but an introduction to that of Greece. Without an attentive examination of its remains we should be unable to distinguish the original elements in the work of the Greek genius from those which it borrowed from other nations. We must pass in review the whole artistic production of several great nations who occupied a vast surface of the globe, and whose fertility was prolonged through a long course of centuries, but we shall not attempt to describe singly the great buildings of Egypt and Assyria, of Persia and Phœnicia, as such an attempt would perhaps cause us to lose sight of the main object of our work.