occasion to speak of in the next Lecture, but to the books which were evidently recognized as having public and, if I may say so, canonical authority. Those which are best known have reference to the passage of the sun through the twelve hours of the night. That part of the world which is below the earth and visited by the sun after his setting, is called the Tuat, The bark of the sun is represented as proceeding over a river called the Uranes, through fields cultivated by the departed. The whole space is divided into twelve parts, separated by gates. The "Book of that which is in the Tuat" contains a short description of these twelve divisions, their names, the names of the hours of the night, of the gates and of the gods belonging to each locality, and it states the advantages to be derived from a knowledge of these names, and also from the due observance upon earth by the living of the rites due to the departed. It is said, for instance, that if these rites are conducted em ser maāt, "with the strict accuracy of Law," the honours paid to him on earth are transmitted to him in the lower world. If he knows the names of the gods he encounters, no harm will come to him. The papyri which contain this composition are always illustrated; the text is indeed in great part simply descriptive of the picture to which it refers.
Very similar in its nature is the composition which covers the beautiful alabaster sarcophagus of Seti I.,
