It was founded by Ptolemy Soter, who summoned a follower of Aristotle, Demetrius Phaleras, and ordered him to organise an institution on the lines of the Athenian Mouseion—a philosophic establishment that had contained the library of Aristotle. But the Alexandrian Mouseion soon diverged widely from its model. It was far richer and larger for one thing; the funds being administered by a priest who was appointed by the King. And it was essentially a court institution, under palace control, and knew both the advantages and disadvantages of royal patronage. In some ways it resembled a modern university, but the scholars and scientists and literary men whom it supported were under no obligation to teach; they had only to pursue their studies to the greater glory of the Ptolemies. The most famous element in this enormous institution was the Library—sometimes called the “Mother” library to distinguish it from a later and even greater collection. 500,000 books, and a catalogue that occupied 120. The post of “Librarian” was of immense importance and its holder was the chief official in the Mouseion. The actual literary and scientific output of the Mouseion will be considered elsewhere (p. 28). RUE NEBI DANIEL (Site of Mouseion?): p. 105 (iv). THE TEMPLE OF SERAPIS. The idea that one religion is false and another true is essentially Christian, and had not occurred to the Egyptians and Greeks who were living together at Alexandria. Each worshipped his own gods, just as he spoke his own language, but he never thought that the gods of his neighbour had no existence, and he was willing to believe that they might be his own gods under another name. The Greeks in particular held this view and had already identified Osiris, god of the world beyond death, with their Dionysus, who was a god of mysteries and also of wine. So when Ptolemy Soter decided to compound a god for his new city, he was only taking advantage of this tendency, and giving a local habitation and a name and a statue to sentiments that already existed. Osiris was the main ingredient. He was already worshipped on the hill of Rhakotis, and he was the most celebrated of the Egyptian deities. To him was added the bull god Apis, of Memphis, whose cult had been recently revived, and out of their names was formed the compound, “Serapis.” But while the origins and title of the new god were Egyptian, his appearance and attributes were Greek. His statue—ascribed to the Greek sculptor Bryaxis—showed him seated in Greek garments upon a classic throne. His features were those of the bearded Zeus, but softened and benign; indeed he more closely resembled Aesculapius, god of Healing, to whom in a civilised age men naturally turned. The basket on his head showed that he was a harvest god, the three-headed Cerberus stood by his side to show that he represented Pluto, god of the underworld.