1. [Title page] (from Petrarch, Triumphs) Collection: Images from the Rare Book and Manuscript Collections Date: ca. 1520 Format: Image
2. [Diagram showing the earth's orbit around the sun as it moves through the two solstices and the two equinoxes] (from Galileo, Dialog) Collection: Images from the Rare Book and Manuscript Collections Date: ca. 1632 Format: Image
3. [Diagram of the solar system showing the planets revolving about the sun according to Copernicus] (from Galileo, Dialog) Collection: Images from the Rare Book and Manuscript Collections Date: ca. 1632 Format: Image
