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Unformatted text preview: believed that the ostrich let her egg hatch in the sunlight without intervention, and thus became a symbol of virgin birth. Also, the ostrich is here an absent mother, a symbol of the deceased Battista. The vanishing point is on the Virgin's head. Geometrically, the ratio of width to height is 2:3, a musical ratio. This same ratio appears in the vault, which has 6 coffers in one direction and 9 in the other. The ratio of the diameter of the circle of the vault to a circle inscribed in the lower part of the picture is also 2:3....
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- Fall '10