In this section there are four works dedicated to three rulers of the Medici family between the seventeenth and eighteenth centuries.
Three of the books are from the 1600s, the century of great discoveries of Galileo, and are about physics and astronomy. The first two texts are from the first half of the century: an atlas of the Neapolitan cartographer Ottavio Pisani (1575-after 1637), dedicated to the movement of the stars and one of the fundamental works of the thought of Galileo Galilei (1564-1642), and the Dialogue concerning the two chief systems of the Ptolemaic and Copernican worlds.
The third book, dating to the second half of the century, is the first posthumous collection of the Works of Galileo, with the exception of The Dialogue above and Letter to Cristina Lorena due to the censorship of the Inquisition. The Pisani atlas was dedicated to Grand Duke Cosimo II (1590-1621), while the Dialogue concerning the two chief world systems and the collection of works by Galilei are dedicated to Grand Duke Ferdinand II (1610-1670). Engravings by Stefano della Bella (1619-1664) are present in the latter two books.
A treatise on the meaning of the Emerald Tablet of Hermes Trismegistus of 1703, finally, is dedicated to Cosimo III (1642-1723)
