The ancient scholion on the 17th Chapter speaks of the Right Eye of Rā, and the more recent scholion of the papyri speaks of the Eye as being in pain and weeping for its sister ⁂⁂⁂. The Egyptian name for the Eye is here ⁂⁂⁂⁂ _ut’ait_. The frequent expression ⁂⁂ means _full moon_, and is constantly identified with the fifteenth day of the month ⁂. The moon is in these texts called the _Left Eye_ ⁂⁂, and Osiris is said to unite with her (or with her sister) in order to renew her revolution ⁂⁂⁂⁂. And of the Eye it is said that ‘she renews her revolution on the fifteenth day’ ⁂⁂⁂⁂, and the god (Osiris) makes her full of her _glory_ or _splendour_ (⁂⁂⁂⁂) or what she requires, ⁂⁂ = ⁂⁂⁂⁂. This explains the symbol ⁂⁂⁂⁂⁂ which is seen on certain tablets. But what is the meaning of the passage at the end of Part I of this chapter—“when the Eye is full in Annu, on the last day of Mechir” ⁂⁂⁂⁂, an expression which is repeated in the title of Chapter 140? The moon, which is always represented as full on the fifteenth of the month, cannot be full on the thirtieth. It must be the other Eye, the Sun. Now we know what is meant by the Full Moon, the Plenilunium, but what is the Full Sun? M. de Rougé, in his commentary on the 17th Chapter, gave the key to this, by pointing out that the 30th Mechir was the last day of the sixth month of the year; that is the 180th day after the first of Thoth, which is supposed to coincide with the Summer Solstice. It is therefore at the time of the _Winter_ Solstice that the Eye is said to be full. The inaccuracy, of course, arises from the length of the Egyptian year. But there can be no doubt that the time of the Winter Solstice is meant. In the year 1470 B.C. the Egyptian year began on July 20, and the 30th Mechir coincided with January 15 of the Julian calendar. If the Eye (considered as the Sun) is said to be _full_ at the Winter Solstice, it was most probably spoken of in the same way not only at the Summer Solstice, but also at the two Equinoxes. And this is the most probable reason why in the pictures representing the Four Rudders of Heaven (North, South, East and West) an Eye ⁂ is attached to each rudder. (See Vignettes of Chapter 148.) The Two Eyes, considered as Sun and Moon, are attributed not only to Rā and Osiris, but to gods identified with these. Of the two passages which have been most frequently quoted, “Thy Right Eye is the Sun ⁂⁂⁂ and thy left is the Moon ⁂⁂,” “His Right Eye is the Sun and his left is the Moon,” the first is addressed to Ptah (in the Pap. Berlin, VII, l. 42), and the second, which occurs on the Neapolitan Stele, is really addressed to Osiris as god of Suten-hunen, under the form of the Ram-headed deity Her-śefit. Reference is made towards the end of the inscription to the “divine Eyes which are in Suten-hunen.”