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An engraved plate contains three numbered symbolic illustrations within a double lined frame. 1. At the top left, a personified sun with a human face and stylized rays emits a vertical stream of water from its mouth, which flows down toward the central circular diagram. 2. At the top right, an oval medallion labeled with the letter "T" depicts three figures: a crowned woman on the left holding a bucket or vessel, a small naked child in the center, and a man on the right holding a staff. 3. In the center, a large circular diagram labeled with the letter "M" at its base. The inner scene features a group of figures: on the left, a man with a winged hat and sandals, representing Mercury or Hermes; in the center, a bearded man with a crown, representing Jupiter or Zeus, seated and holding a long staff; and on the right, a standing woman. Below them is a small child and an eagle. The border of the circle is divided into twelve segments containing various small figures and symbols, reminiscent of the zodiac.
1. The source of the Nile, for page 164. 2. The three Keys of ancient writing in the Egyptian manner. 3. The five principal Keys of ancient writing in the Greek manner: namely a king, a fertile mother, a beloved child, a messenger acting as a symbol of the Dog Star original: "Canicule," referring to Sirius, and a sparrowhawk acting as a symbol of the Etesian wind The Etesian winds are strong, cool, periodic winds of the Aegean Sea, which the author connects to the timing of the Nile's flood..