LITERATURE AND SCIENCE.--The most important Egyptian book that has come down to us is the _Book of the Dead._ It relates, in a mystical strain, the adventures of the soul after death, and explains how, by reciting the names and titles of numberless gods, and by means of other theological knowledge, the soul can make its way to the hall of Osiris. It is a monument of the pedantic and punctilious formalism of the Egyptian ritual. Most of the papyri that have been preserved are of a religious character. There are songs not void of beauty. The moral writings are of a decidedly higher grade. Works of fiction are constructed with considerable skill, and are sometimes not wanting in humor. Some of the hymns are not destitute of merit. It can not be doubted that there were important mathematical writings. Astronomical observations were very early made. In medicine, we have writings which prove that considerable proficiency was attained in this department. But here, as in other branches, the spirit was empirical rather than scientific in the higher sense; and the result was to petrify knowledge in an unalterable form. At length rules of medical treatment, with specific remedies, were definitely settled, from which it was a crime against the state to deviate. THE OLD EMPIRE (to about 2100 B.C.).--_Senoferu,_ who belongs to the third dynasty, is the first king who has left behind him a monumental inscription. A rock-tablet in the peninsula of Sinai gives him the title of conqueror. By some, the pyramid of Meydoun, built in three distinct stages to a height of 125 feet, is ascribed to him, and is believed to be his sepulcher. At Saccarah is a pyramid of like form, 200 feet in height. _Khufu,_ the Cheops of Herodotus, was the builder of the "Great Pyramid" of Ghizeh, the largest and loftiest building on earth. Its original perpendicular height was not less than 480 feet, the length of its side 764 feet, and the area covered by it more than thirteen acres. Near it are the small pyramids, which were the sepulchers of his wives and other relatives. The statues of _Khafra_ remain, and the wooden mummy-case of _Menkaura,_ with the myth of Osiris recorded on it. These were the builders of the two other most celebrated pyramids, the second and the third. With the long reign of _Unas_ closes the first era in Egyptian history. His unfinished pyramid, built of huge blocks of limestone, indicates that he died too soon to complete it. From this date, back to the epoch of _Senoferu_, are included nearly three centuries. In this period of prevalent peace, art had the opportunity to develop. The spirit of progress in this department had not yet been cramped by the "hieratic canon," the fixed rules set for artistic labor. There is evidence of considerable knowledge in anatomy and medicine. The myth of Osiris expanded, and his worship spread.