"If we pass to science, we shall find no reason for supposing that the advances of modern times were anticipated by the mysterious wisdom of the Egyptians. Something they must have known of astronomy to practise astrology, to divide the ecliptic, and to effect the exact orientation of the Pyramids. Some knowledge of chemistry is implied in their manufacture of porcelain; some knowledge of physiology, pathology, pharmaceutics and surgery, in their division of the medical art; something of geometry in their measurement of land; and something of mechanics in their enormous buildings and monuments. But their great engines were multitudes of laborers, aided by such natural expedients as the lever, the roller, and the inclined plane, which can scarcely be called machines. In other sciences there is evidence of long and careful observation, but nothing to prove an acquaintance with the _laws_ of nature. Progress in the medical art was precluded by the necessity of adhering to the precepts of the sacred books. Science was monopolized by the priests; and it is said that by them the King was regularly sworn to retain the old and unintercalated year. The want of decimal notation, and the consequent clumsiness of the system of numeration, would go far to preclude the improvement of arithmetic, or any science into which calculation entered. "Literature the Egyptians appear to have had none, except of the monumental or sacred kind, including under the latter head the sacred books of science. But the art of writing was practised by them, or at least by the learned part of them, more extensively than by any contemporary nation. Mr. Kenrick gives us a full history of the interpretation of hieroglyphics, the key to which was first given by the parallel inscriptions in hieroglyphic and Greek found on the famous Rosetta stone, and metes to Young and Champollion their due shares in that discovery, of which each uncandidly claimed the whole. The hieroglyphics are now known to be of three kinds, all of which are generally mingled in the same inscription--the pictorial, the symbolical, and the phonetic. The pictorial hieroglyphic is the simple picture of the thing signified. Symbolical hieroglyphics are, among others, a crescent for a month, the maternal vulture for _maternity_, the filial vulpanser for _son_, the bee for _a people obedient to their king_, the bull for _strength_, the ostrich feather with its equal filaments for _truth_, the lotus for Upper and the papyrus for Lower Egypt. To these we may add the bird, which denotes a cycle of time (in Coptic _phanech_), and about which such wild fables were received by the credulity of Herodotus and by that of the Fathers. But the greater part of the hieroglyphics are phonetic like our alphabet, and are being slowly and precariously deciphered into the words of a language which is identified with the ancient form of Coptic.