XIX.] [Footnote 2: In the Egyptian "Book of the Dead," Ra, the Sun-God, says, "I am a soul and its twins," or, "My soul is becoming two twins." "This means that the soul of the sun-god is one, but, now that it is born again, it divides into two principal forms.

Ra was worshipped at An, under his two prominent manifestations, as Tum the primal god, or more definitely, god of the sun at evening, and as Harmachis, god of the new sun, the sun at dawn." Tiele, _History of the Egyptian Religion_, p.

80.] The correctness of this supposition seems to be shown by a prevailing superstition among the Aztecs about twins, and which strikingly illustrates the uniformity of mythological conceptions throughout the world.

All readers are familiar with the twins Romulus and Remus in Roman story, one of whom was fated to destroy their grandfather Amulius; with Edipus and Telephos, whose father Laios, was warned that his death would be by one of his children; with Theseus and Peirithoos, the former destined to cause the suicide of his father Aigeus; and with many more such myths.

They can be traced, without room for doubt, back to simple expressions of the fact that the morning and the evening of the one day can only come when the previous day is past and gone; expressed figuratively by the statement that any one day must destroy its predecessor.